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結び目やグラフのトポロジーを応用した新高分子理論に基づく特性・機能創出

Research Project

Project/Area Number 26310206
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section特設分野
Research Field Mathematical Sciences in Search of New Cooperation
Research InstitutionSaitama University

Principal Investigator

下川 航也  埼玉大学, 理工学研究科, 教授 (60312633)

Co-Investigator(Kenkyū-buntansha) 手塚 育志  東京工業大学, 物質理工学院, 教授 (80155457)
出口 哲生  お茶の水女子大学, 基幹研究院, 教授 (70227544)
Project Period (FY) 2014-07-18 – 2019-03-31
Project Status Granted (Fiscal Year 2017)
Budget Amount *help
¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords高分子化合物 / トポロジー / 結び目 / 高分子化学 / 統計物理学 / 高分子 / グラフ / ESA-CF法 / ランダムウォーク / ランダムウオーク
Outline of Annual Research Achievements

本共同研究では、数学者、高分子化学者、統計物理学者がそれぞれの分野で高分子の研究を行い、ボトムアップ的に連携を行い、高分子サイエンスに新たな視点を提供する。今年度は、8月に国際会議「Topology and graphs in polymer chemistry」を東京工業大学において開催した。
下川が担当する数学的側面では、引き続き高分子の数学的モデルである多環構造を持つグラフの命名法とその書き上げの研究を進めている。さらに結び目理論を用いて、多環状高分子の不斉などの研究を行っている。
手塚が担当する高分子化学では、まったく新しい数学的視点からの高分子構造設計原理を確立し、高分子化合物に特徴的な「やわらかいひも状」の「かたち」に基づく新たな特性・機能創出を進めている。手塚らはこれまで、独自の高分子合成手法(ESA-CF法)を創案し、最新の有機合成手法とも組み合わせて、様々な新奇多環状トポロジー高分子の合成を行ってきた。本研究では、トポロジー幾何学の視点から特に重要な「かたち」に焦点を絞り合成を行うとともに、トポロジー幾何学および計算機シミュレーションにより高分子特性の予測と実験的検証を進めている。
出口が担当する統計物理学的側面では、新しい理論的方法を用いて複雑なトポロジー的構造をもつ高分子の統計物理量を計算し、実験と比較できる理論的結果を導き、一方、スパコンを用いて計算時間が長くコストは高いが現実的な理論模型のシミュレーションを実行して結果を求め、新しい理論的方法による結果と比較し、その妥当性を確認している。具体的には、与えられた2点間をつなぐランダムウオークを高速に生成する新しいアルゴリズムを用いて、複雑な構造をもつ高分子に対して、慣性半径や拡散係数など様々な物理量を具体的に数値的に計算している。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

平成28年度の成果は次の通りである。
数学の分野では、K3,3とK4の空間グラフの表の作成を行った。また、数学的理論に基づく高分子命名法と、その構成法との関連の研究成果を得た。
高分子化学の分野では、Spiro-,Fused, Bridged 構造の組み合わせによる新奇ハイブリッド多環状高分子トポロジーに着目し、独自に開発した高分子反応プロセスであるESA-CF法と最近の有機合成化学の成果であるClick法と組み合わせて構築することに成功した(Macromolecules, 原著論文の項参照)。併せて、ESA-CF法の新たな展開をめざして、ペリレンイミド基を高密度に側鎖に導入した環状高分子を新規に設計・合成し、その薄膜電子特性に対するトポロジー効果を明らかにした(Macromolecules, 原著論文の項参照)。
統計物理学的側面では、東工大のスパコンであるツバメ計算機を用いて、排除体積模型の分子動力学シミュレーションにより2点間距離分布関数を求めたところ、短距離相関で興味深い結果を得た。これを確かめるため、与えられた2点間を結ぶランダムウオークを線形時間で高速生成する新しいアルゴリズムを用いて、シータ型高分子の2点相関関数や散乱関数などを数値的に求めた。排除体積がないガウス鎖の場合、解析的な表式をいくつかの物理量に対して厳密に導出でき、正しい結論を誘導出来る。さらに、シータ型高分子に対するモンテカルロ法アルゴリズムを新たに導き、排除体積がない場合に上記結果との一致を確かめた。新しいモンテカルロ法アルゴリズムを用いて、排除体積をもつシータ型高分子の物理量を求めた。
また、8月に国際会議を開催し、これらの成果を発表するとともに、高分子トポロジーなどの多くの研究者と活発な研究討論を行った。

Strategy for Future Research Activity

数学的側面では、多環状高分子化合物の特性の数学的な特徴付けの研究を続ける。特に、高分子化合物の新しい形状と、その構成法の提案の研究を続ける。
高分子化学的側面では、前年度までに得られた成果をふまえて、ESA-CF法を適用した高分子の折りたたみによる多環状高分子異性体の選択的合成プロセスの検討を進める。また環状高分子の環拡大重合プロセスによる実用的合成法も検討する。さらに、多環状高分子異性体間の相互変換(異性化反応)についても検討し、これらの結果と、トポロジーに基づいた様々な「かたち」の高分子の体系的分類、および、異なる「かたち」相互の関係性(異性現象等)の抽出を合わせて、トポロジー理論に基づく新奇構造高分子合成プロセスの開発を進める。これにより、高分子ブレークスルー機能の創出が期待される。
統計物理学的側面では、次の目標は、今回導入された新しいモンテカルロ法アルゴリズムを用いて、排除体積が存在する場合に、トポロジー的に複雑な高分子の静的構造因子(散乱関数)を求めることが挙げられる。この物理量は2点間距離分布関数のフーリエ変換で与えられる。静的構造因子の特徴が明らかになれば、その情報を用いて、散乱実験の結果から溶液中の高分子のトポロジー的構造が判定できるようになる可能性が高い。また、さらに複雑なトポロジー的構造を持つ高分子の性質を調べることが考えられる。そして究極的な目標としては、東工大のつばめ計算機を使用して、トポロジー高分子の高分子メルトの性質を調べることが今後の重要課題である。

Expenditure Plan for Carryover Budget

手塚のベルギー出張は2017年5月に行う予定である。また、TSUBAMEでのシミュレーションの準備も進み、準備が完了次第計算を開始する予定である。

Report

(3 results)
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (69 results)

All 2016 2015 2014 2013 Other

All Int'l Joint Research (3 results) Journal Article (26 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 26 results,  Open Access: 3 results,  Acknowledgement Compliant: 19 results) Presentation (33 results) (of which Int'l Joint Research: 16 results,  Invited: 32 results) Remarks (6 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Georgia, Athens/ColoradoState University(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Saskatchewan(カナダ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Georgia, Athens/Colorado State University(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Band surgeries and crossing changes between fibered links2016

    • Author(s)
      Dorothy Buck, Kai Ishihara, Matt Rathbun, and Koya Shimokawa
    • Journal Title

      J. London Math. Soc.

      Volume: 94(2) Issue: 2 Pages: 557-582

    • DOI

      10.1112/jlms/jdw049

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Dehn surgery and Seifert surface system2016

    • Author(s)
      Makoto Ozawa and Koya Shimokawa
    • Journal Title

      Ann. Sc. Norm. Super. Pisa Cl. Sci. (5)

      Volume: - Pages: 267-276

    • DOI

      10.2422/2036-2145.201410_008

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] ESA-CF Synthesis of Linear and Cyclic Polymers Having Densely Appended Perylene Units and Topology Effects on Their Thin-Film Electron Mobility2016

    • Author(s)
      Akihiro Kimura, Tsukasa Hasegawa, Takuya Yamamoto, Hidetoshi Matsumoto, Yasuyuki Tezuka
    • Journal Title

      Macromolecules

      Volume: 49 Issue: 16 Pages: 5831-5840

    • DOI

      10.1021/acs.macromol.6b01225

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Construction of Hybrid-Multicyclic Polymer Topologies Comprised of Dicyclic Structure Units by Means of An ESA-CF/Click-Linking Protocol2016

    • Author(s)
      Yoichiro Tomikawa, Takuya Yamamoto, Yasuyuki Tezuka
    • Journal Title

      Macromolecules

      Volume: 49 Issue: 11 Pages: 4076-4087

    • DOI

      10.1021/acs.macromol.6b00637

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Formation and Properties of Vesicles from Cyclic Amphiphilic PS-PEO Block Copolymers2016

    • Author(s)
      Eisuke Baba, Toshiaki Yatsunami, Yasuyuki Tezuka, Takuya Yamamoto
    • Journal Title

      Langmuir

      Volume: 32 Issue: 40 Pages: 10344-10349

    • DOI

      10.1021/acs.langmuir.6b03148

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level2016

    • Author(s)
      Satoshi Habuchi, Takuya Yamamoto, Yasuyuki Tezuka
    • Journal Title

      J. Vis. Exp.

      Volume: 115 Issue: 115

    • DOI

      10.3791/54503

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hydrogel Formation by the 'Topological Conversion' of Cyclic PLA-PEO Block Copolymers2016

    • Author(s)
      Takuya Yamamoto, Kotaro Inoue, Yasuyuki Tezuka
    • Journal Title

      Polym. J.

      Volume: 48 Issue: 4 Pages: 391-398

    • DOI

      10.1038/pj.2015.134

    • NAID

      120005906894

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Topological "Interfacial" Polymer Chemistry―Dependency of Polymer "Shape" on Surface Morphology and Stability of Layer Structures When Heating Organized Molecular Films of Cyclic and Linear Block Copolymers of n-Butyl Acrylate-Ethylene Oxide―2016

    • Author(s)
      Qi Meng, Satoshi Honda, Yasuyuki Tezuka, Takuya Yamamoto, Atsuhiro Fujimori
    • Journal Title

      J. Polym. Sci., B, Polym. Phys.

      Volume: 53 Issue: 4 Pages: 486-498

    • DOI

      10.1002/polb.23936

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Statistical and hydrodynamic properties of topological polymers for various graphs showing enhanced short-range correlation2016

    • Author(s)
      E. Uehara and T. Deguchi
    • Journal Title

      J. Chem. Phys.

      Volume: 145 Issue: 16 Pages: 164905-164905

    • DOI

      10.1063/1.4965828

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Light- and Heat-Triggered Reversible Linear-Cyclic Topological Conversion of Telechelic Polymers with Anthryl End Groups2015

    • Author(s)
      Takuya Yamamoto, Sakyo Yagyu, Yasuyuki Tezuka
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 48 Issue: 11 Pages: 391-398

    • DOI

      10.1021/jacs.6b00800

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Tangle sums and factorization of A-polynomials2015

    • Author(s)
      Masaharu Ishikawa, Thomas W. Mattman, and Koya Shimokawa
    • Journal Title

      New York Journal of Mathematics

      Volume: 21 Pages: 823-835

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Folding Construction of a Pentacyclic Quadruply-Fused Polymer Topology with Tailored kyklo-Telechelic Precursors2015

    • Author(s)
      Hiroyuki Heguri, Takuya Yamamoto, Yasuyuki Tezuka
    • Journal Title

      Angew. Chem., Int. Ed.

      Volume: 54 Issue: 30 Pages: 8688-8692

    • DOI

      10.1002/anie.201501800

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A Concise Click/ESA-CF Synthesis of Periodically-Positioned Trifunctional kyklo-Telechelic Poly(THF)s2015

    • Author(s)
      Haruna Wada, Takuya Yamamoto, Yasuyuki Tezuka
    • Journal Title

      Macromolecules

      Volume: 48 Issue: 17 Pages: 6077-6086

    • DOI

      10.1021/acs.macromol.5b01818

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] NMR Relaxometry for the Thermal Stability and Phase Transition Mechanism of Flower-like Micelles from Linear and Cyclic Amphiphilic Block Copolymers2015

    • Author(s)
      Haruna Wada, Yu Kitazawa, Shigeki Kuroki, Yasuyuki Tezuka, Takuya Yamamoto
    • Journal Title

      Langmuir

      Volume: 31 Issue: 32 Pages: 8739-8744

    • DOI

      10.1021/acs.langmuir.5b01902

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Single-Molecule Imaging Reveals Topological Isomer-Dependent Diffusion by 4-Armed Star and Dicyclic 8-Shaped Polymers2015

    • Author(s)
      Satoshi Habuchi, Susumu Fujiwara, Takuya Yamamoto, Yasuyuki Tezuka
    • Journal Title

      Polym. Chem.

      Volume: 6 Issue: 22 Pages: 4109-4115

    • DOI

      10.1039/c5py00534e

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A study on emulsion stabilization induced with linear and cyclized polystyrene-poly(ethylene oxide) block copolymer surfactants2015

    • Author(s)
      Eisuke Baba, Toshiaki Yatsunami, Takuya Yamamoto and Yasuyuki Tezuka
    • Journal Title

      Polym. J.

      Volume: 47 Issue: 5 Pages: 408-412

    • DOI

      10.1038/pj.2015.5

    • NAID

      40020439227

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Characteristic length of the knotting probability revisited2015

    • Author(s)
      E. Uehara and T. Deguchi
    • Journal Title

      J. Phys. Journal of Physics: Condensed Matter

      Volume: 27 Issue: 35 Pages: 354104-354104

    • DOI

      10.1088/0953-8984/27/35/354104

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Site-specific recombination modeled as a band surgery: Applications to Xer recombination2014

    • Author(s)
      Kai Ishihara, Koya Shimokawa, and Mariel Vazquez
    • Journal Title

      Discrete and Topological Models in Molecular Biology

      Volume: - Pages: 387-401

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Constructing a Macromolecular K3,3 Graph through Electrostatic Self- Assembly and Covalent Fixation with a Dendritic Polymer Precursor2014

    • Author(s)
      Takuya Suzuki, Takuya Yamamoto, and Yasuyuki Tezuka
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 136 Issue: 28 Pages: 10148-10155

    • DOI

      10.1021/ja504891x

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Construction of Double-Eight and Double-Trefoil Polymer Topologies with Core-Clickable kyklo-Telechelic Precursors2014

    • Author(s)
      Yoichiro Tomikawa, Hiroto Fukata, Yee Song Ko, Takuya Yamamoto, and Yasuyuki Tezuka
    • Journal Title

      Macromolecules

      Volume: 47 Issue: 23 Pages: 8214-8223

    • DOI

      10.1021/ma501751r

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] SN2 regioselectivity in the esterification of 5- and 7-membered azacycloalkane quaternary salts: a DFT study to reveal the transition state ring conformation prevailing over the ground state ring strain2014

    • Author(s)
      Akihiro Kimura, Susumu Kawauchi, Takuya Yamamoto and Yasuyuki Tezuka
    • Journal Title

      Org. Biomol. Chem.

      Volume: 12 Issue: 34 Pages: 6717-6724

    • DOI

      10.1039/c4ob00695j

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synthesis of Core-fluorescent Four-armed Star and Dicyclic 8-shaped Poly(THF)s by Electrostatic Self-assembly and Covalent Fixation (ESA-CF) Protocol2014

    • Author(s)
      S. Fujiwara, T. Yamamoto, Y. Tezuka
    • Journal Title

      React Funct Polym

      Volume: 80 Pages: 3-8

    • DOI

      10.1016/j.reactfunctpolym.2013.11.007

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistical and hydrodynamic properties of double-ring polymers with a fixed linking number between twin rings2014

    • Author(s)
      E. Uehara and T. Deguchi
    • Journal Title

      J. Chem. Phys.

      Volume: 140 Issue: 4 Pages: 044902-044902

    • DOI

      10.1063/1.4862500

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mean-square radius of gyration and hydrodynamic radius for topological polymers evaluated through the quaternionic algorithm2014

    • Author(s)
      E. Uehara, R. Tanaka, M. Inoue, F. Hirose and T. Deguchi
    • Journal Title

      Reactive and Functional Polymers

      Volume: 80 Pages: 48-56

    • DOI

      10.1016/j.reactfunctpolym.2014.03.004

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Probability Theory of Random Polygons from the Quaternionic Viewpoint2014

    • Author(s)
      J. Cantarella, T. Deguchi, and C. Shonkwiler
    • Journal Title

      Comm. Pure Appl. Math.

      Volume: 67 Pages: 1658-1699

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Click Construction of Spiro- and Bridged-Quatrefoil Polymer Topologies with kyklo-Telechelics Having an Azide Group2013

    • Author(s)
      Y. S. Ko, T. Yamamoto, Y. Tezuka
    • Journal Title

      Macromol. Rapid Commun

      Volume: 34(in press) Issue: 4 Pages: 412-416

    • DOI

      10.1002/marc.201300555

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] トポロジーの高分子化学への応用2016

    • Author(s)
      下川航也
    • Organizer
      ナノ学会主催 ナノ構造・物性- ナノ機能・応用部会 合同シンポジウム
    • Place of Presentation
      グランドパレス川端(秋田県大仙市)
    • Year and Date
      2016-12-27
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Topological Polymer Chemistry Constructing Complex Macromolecular Graph Architectures2016

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      Symposium of Cyclic Polymer at Soochow
    • Place of Presentation
      Suzhou (China)
    • Year and Date
      2016-10-22
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Knot Probabilities of Ring Polymers with Excluded Volume and the Hydrodynamic Properties of Graph-Shaped Topological Polymers2016

    • Author(s)
      T. Deguchi
    • Organizer
      ``Workshop on Knots and Links in Biological and Sot Matter Systems (smr 2881)’’
    • Place of Presentation
      International Centre for Theoretical Physics, Trieste, Italy
    • Year and Date
      2016-09-26
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Gyration radius, the hydrodynamic radius and the two-point correlation function of graph-shaped polymer2016

    • Author(s)
      E. Uehara * and T. Deguchi
    • Organizer
      International workshop: “Topology and graphs in polymer chemistry“
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2016-08-07
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Topological Polymer Chemistry Designing Macromolecular Graph Constructions2016

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      International Workshop: Topology and graphs in polymer chemistry
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2016-08-06
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Topological Polymers studied through quaternions and enhancement of the short-range intrachain correlation2016

    • Author(s)
      T. Deguchi * and E. Uehara
    • Organizer
      International workshop: “Topology and graphs in polymer chemistry“
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2016-08-06
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 結び目理論の応用について -DNA 組換え酵素、高分子化学、統計力学的エントロピー-2016

    • Author(s)
      下川航也
    • Organizer
      第63 回トポロジーシンポジウム
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2016-07-07
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 結び目理論と3次元トポロジーの化学への応用2016

    • Author(s)
      下川航也
    • Organizer
      日本化学会 第96 春季年会 「幾何学が誘起する新電子系物質科学」
    • Place of Presentation
      同志社大学 京田辺キャンパス(京都府京田辺市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] シンプレクティック幾何学とトポロジカル高分子:現代微分幾何学の応用と新物質2016

    • Author(s)
      出口哲生
    • Organizer
      日本化学会 第96 春季年会 「幾何学が誘起する新電子系物質科学」
    • Place of Presentation
      同志社大学 京田辺キャンパス(京都府京田辺市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Knots and links in the simple cubic lattice2016

    • Author(s)
      Koya Shimokawa
    • Organizer
      mini symposium: ”Mathematical Modeling and Analysis of Protein Cages”
    • Place of Presentation
      沖縄科学技術大学院大学(沖縄県国頭郡恩納村)
    • Year and Date
      2016-01-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Application of graph theory and knot theory to polymer chemistry2015

    • Author(s)
      Koya Shimokawa
    • Organizer
      Cyclic and Topological Polymers, Pacifichem 2015
    • Place of Presentation
      Hawaii Convention center, Honolulu, Hawaii, USA
    • Year and Date
      2015-12-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Diffusion Coefficient and the Mean-Square Radius of Gyration for Various Topological Polymers through the Quaternion Algorithm2015

    • Author(s)
      Tetsuo Deguchi and Erica Uehara
    • Organizer
      Cyclic and Topological Polymers, Pacifichem 2015
    • Place of Presentation
      Hawaii Convention center, Honolulu, Hawaii, USA
    • Year and Date
      2015-12-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymer Chemistry: Designing Macromolecular Graph Geometries2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      Cyclic and Topological Polymers, Pacifichem 2015
    • Place of Presentation
      Hawaii Convention center, Honolulu, Hawaii, USA
    • Year and Date
      2015-12-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Linear-cyclic topological transformation for switching the properties of polymer materials2015

    • Author(s)
      T. Yamamoto, N. Sugai,S. Asai, Y. Tezuka
    • Organizer
      PaciciChem-2015 (Symposium: Cyclic and Topological Polymers)
    • Place of Presentation
      Hawaii Convention center, Honolulu, Hawaii, USA
    • Year and Date
      2015-12-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Knots and graphs in polymer chemistry2015

    • Author(s)
      Koya Shimokawa
    • Organizer
      International Workshop on Topology/Geometry-driven Electron Systems toward New Horizon of Functional Materials
    • Place of Presentation
      名古屋大学 野依記念学術交流館(愛知県名古屋市)
    • Year and Date
      2015-12-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymer Chemistry Designing Macromolecular Graph Constructions2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      International Workshop on Topology/Geometry-driven Electron Systems toward New Horizon of Functional Materials
    • Place of Presentation
      名古屋大学 野依記念学術交流館(愛知県名古屋市)
    • Year and Date
      2015-12-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymers Studied through Quaternion Algorithm2015

    • Author(s)
      Tetsuo Deguchi and Erica Uehara
    • Organizer
      International Workshop on Topology/Geometry-driven Electron Systems toward New Horizon of Functional Materials
    • Place of Presentation
      名古屋大学 野依記念学術交流館(愛知県名古屋市)
    • Year and Date
      2015-12-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymer Chemistry toward Unconventional Macromolecular Architectures and Functions2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      13th Japan-Belgium Symposium on Polymer Science, 13J-BSPS
    • Place of Presentation
      奈良女子大学(奈良県奈良市)
    • Year and Date
      2015-11-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymer Chemistry: Macromolecular Designing Inspired by Soft Geometry and Beyond2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      IUPAC 11th International Conference on Advanced Polymers via Macromolecular Engineering,APME-2015
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2015-10-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Statistical physics of topological polymers studied through quaternions2015

    • Author(s)
      Tetsuo Deguchi and Erica Uehara
    • Organizer
      Simons Center's Workshop: Symplectic and Algebraic Geometry in the Statistical Physics of Polymers
    • Place of Presentation
      Simons Center of Geometry and Physics, Stony Brook University, NY, USA
    • Year and Date
      2015-10-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Knots and links in the simple cubic lattice2015

    • Author(s)
      Koya Shimokawa
    • Organizer
      Simons Center's Workshop: Symplectic and Algebraic Geometry in the Statistical Physics of Polymers
    • Place of Presentation
      Simons Center of Geometry and Physics, Stony Brook University, NY, USA
    • Year and Date
      2015-10-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electrostatic Self-assembly and Covalent Fixation: A New Click Process for Complex Polymer Architectures2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      International Science & Nature Congress, ISNaC-2015
    • Place of Presentation
      Putra World Trade Center, Kuala Lumpur (Malaysia)
    • Year and Date
      2015-09-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Polymer Chemistry Designing Macromolecular Graph Constructions (Keynote Lecture)2015

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      Japan-Taiwan Bilateral Polymer Symposium 2015, JTBPS-2015
    • Place of Presentation
      北海道大学工学部 札幌キャンパス(北海道札幌市)
    • Year and Date
      2015-09-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] トポロジー(柔らかい幾何学)を触発する高分子の「かたち」と合成戦略2015

    • Author(s)
      手塚育志
    • Organizer
      2015年度有機合成化学協会・東北支部 仙台地区春の講演会
    • Place of Presentation
      東北大学青葉キャンパス(宮城県仙台市)
    • Year and Date
      2015-06-20
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Topological polymers through the quaternionic algorithm2015

    • Author(s)
      Tetsuo Deguchi
    • Organizer
      Combinatorics, topology and statistical mechanics of polymer models III, CanaDAM 2015
    • Place of Presentation
      University of Saskatchewan in Saskatoon, SK, Canada
    • Year and Date
      2015-06-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Unknotting operation and growth constant of knots in a tube region2015

    • Author(s)
      Koya Shimokawa
    • Organizer
      Combinatorics, topology and statistical mechanics of polymer models II, CanaDAM 2015
    • Place of Presentation
      University of Saskatchewan in Saskatoon, SK, Canada
    • Year and Date
      2015-06-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Knot probability of DNA knots and the effective diameter of DNA2014

    • Author(s)
      T. Deguchi and E. Uehara
    • Organizer
      Special session on topology, geometry and combinatorics of biopolymers, 8th Australia and New Zealand Mathematics Convention
    • Place of Presentation
      University of Melbourne, Melbourne, Australia
    • Year and Date
      2014-12-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Site-specific recombination modeled as a band surgery2014

    • Author(s)
      Koya Shimokawa
    • Organizer
      Special session on topology, geometry and combinatorics of biopolymers, 8th Australia and New Zealand Mathematics Convention
    • Place of Presentation
      University of Melbourne, Melbourne, Australia
    • Year and Date
      2014-12-11
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] DNA組み換え酵素のタングル解析2014

    • Author(s)
      下川航也
    • Organizer
      生命ダイナミクスの数理とその応用:異分野とのさらなる融合
    • Place of Presentation
      東京大学, 東京都目黒区
    • Year and Date
      2014-12-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Topological Polymer Chemistry for Programmed Folding Macromolecular Architectures2014

    • Author(s)
      Yasuyuki Tezuka
    • Organizer
      Korea-Japan Joint Polymer Symposium
    • Place of Presentation
      Daejeon, Korea
    • Year and Date
      2014-10-29 – 2014-10-31
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Site-specific recombination modeled as a band surgery2014

    • Author(s)
      Koya Shimokawa
    • Organizer
      Special Session on "Applications of Knot Theory to the Entanglement of Biopolymers", AMS 2014 Fall Western Sectional Meeting
    • Place of Presentation
      San Francisco State University, San Francisco, USA
    • Year and Date
      2014-10-26
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 高分子トポロジー化学:「かたち」からはじめる高分子機能創出2014

    • Author(s)
      手塚育志
    • Organizer
      第88回純正応用化学シンポジウム
    • Place of Presentation
      京都工繊大, 京都市
    • Year and Date
      2014-10-23
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Probability of DNA knots and the effective diameter of DNA double helix2014

    • Author(s)
      T. Deguchi and E. Uehara
    • Organizer
      Biophysical Society Thematic Meeting: Significance of Knotted Structures for Function of Proteins and Nucleic Acids
    • Place of Presentation
      University of Warsaw, Warsaw, Poland
    • Year and Date
      2014-09-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] Topology and graphs in polymer chemistry

    • URL

      http://www.rimath.saitama-u.ac.jp/lab.jp/kshimoka/polymerchemistryJ.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] 下川航也ホームページ

    • URL

      http://www.rimath.saitama-u.ac.jp/lab.jp/KoyaShimokawa.html

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report 2014 Annual Research Report
  • [Remarks] 手塚研究室ホームページ

    • URL

      http://www.op.titech.ac.jp/lab/tezuka/ytsite/index.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] Deguchi Laboratory

    • URL

      http://www.phys.ocha.ac.jp/deguchilab/home.html

    • Related Report
      2016 Annual Research Report 2014 Annual Research Report
  • [Remarks] 手塚研究室ホームページ

    • URL

      http://www.op.titech.ac.jp/lab/tezuka/ytsite/

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
  • [Remarks] DEGUCHI LABORATORY

    • URL

      http://www.phys.ocha.ac.jp/deguchilab/home.html

    • Related Report
      2015 Annual Research Report
  • [Funded Workshop] International workshop: “Topology and graphs in polymer chemistry”2016

    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Year and Date
      2016-08-06
    • Related Report
      2016 Annual Research Report

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Published: 2014-09-09   Modified: 2022-02-16  

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