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Preparation and recycle of rubbery polymer with nanocomposite-network

Research Project

Project/Area Number 21K18316
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 64:Environmental conservation measure and related fields
Research InstitutionNagaoka University of Technology

Principal Investigator

Kawahara Seiichi  長岡技術科学大学, 工学研究科, 教授 (00242248)

Co-Investigator(Kenkyū-buntansha) 山本 祥正  東京工業高等専門学校, 物質工学科, 准教授 (90444190)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2023: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2022: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2021: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords天然ゴム / リサイクル / ネットワーク / ナノコンポジット / ナノ粒子
Outline of Research at the Start

ナノ粒子のゴム状ナノコンポジットをマトリックスとするネットワークポリマーを創製するため,ナノ粒子のゴム状ナノコンポジットを一つの相(マトリックス)とし,ゴム状ポリマーをもう一つの相とするナノ構造を形成することを目指す。このとき,ゴム状ナノコンポジットにおけるナノ粒子間の距離は10 nm以下とし,ナノ粒子とゴム状ポリマーとの間に分子間引力を作用させることにより,ゴム状ポリマーがナノ粒子同士を強固に接着できるようにする。これにより,架橋ゴムと同程度かそれ以上の物性として破断応力30 MPa以上を実現し,リサイクルの際に破壊されるナノ構造を再構築することを目指す。

Outline of Final Research Achievements

Polymers with the island-nanomatrix structure were prpared by linking polymer-nanoparticles, nanodiamonds, silica-nanoparticles, and protein-nanoparticles to natural rubber and polyisoprene in the latex stage, respectively. Value of stress at break of natural rubber and polyisoprene increased from 0.5-5 MPa to approximately 24 MPa as the island-nanomatrix structure was formed by hybridizing polymer nanoparticles and silica nanoparticles, while it was 10-18 MPa as the structure was formed with each nanoparticle. Natural rubber with the island-nanomatrix structure formed with polystyrene nanoparticles (size 50 nm or more) was suggested to be recycled by kneading followed by hot-pressing.

Academic Significance and Societal Importance of the Research Achievements

架橋することなく,リサイクルできるゴム製品を天然ゴムから創り出すことが,持続可能な社会を構築するために重要な課題となっている。架橋しなければ,タイヤの粉塵ゴミは海に到達する前に生分解できるようになるし,タイヤを含む全てのゴム製品はリサイクルできるようになる。しかしながら,架橋は人命を預かるゴム(タイヤ等)を安心して使用できるようにしてきた実績があるため,架橋に代わる仕組みを創ることは容易なことではない。本研究では,架橋にかわる概念としてゴム状ナノコンポジットをマトリックスとするネットワークポリマーを創製し、リサイクルできる可能性を見出した。今後、リサイクルに向けて研究は進展することを期待する。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Comments on the Screening Results   Research-status Report
  • Research Products

    (91 results)

All 2024 2023 2022 2021

All Journal Article (21 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 21 results,  Open Access: 9 results) Presentation (68 results) (of which Int'l Joint Research: 11 results,  Invited: 17 results) Book (2 results)

  • [Journal Article] Critical Condition of Nanostructured Magnesium Oxide for Accelerated Sulfur Vulcanization of Natural Rubber2024

    • Author(s)
      Luu Huyen Thanh、Kawahara Seiichi
    • Journal Title

      ACS Sustainable Chemistry & Engineering

      Volume: 12 Issue: 8 Pages: 3279-3288

    • DOI

      10.1021/acssuschemeng.3c07529

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biocompatible membrane from the natural rubber-grafted-(2-hydroxyethyl methacrylate) and its metal removal application2024

    • Author(s)
      Nguyen Thu Ha、Pham Thi Lan、Cao Anh Quan、Nguyen Tuan Anh、Vu Xuan Minh、Le Thi My Hanh、Le Van Thuan、Kawahara Seiichi、Tran Dai Lam
    • Journal Title

      Macromolecular Research

      Volume: 32 Issue: 4 Pages: 313-324

    • DOI

      10.1007/s13233-023-00232-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites2024

    • Author(s)
      Thuong Nghiem Thi、Quang Le Dinh、Cuong Vu Quoc、Ha Cao Hong、Lam Nguyen Ba、Kawahara Seiichi
    • Journal Title

      Beilstein Journal of Nanotechnology

      Volume: 15 Pages: 168-179

    • DOI

      10.3762/bjnano.15.16

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] STUDY ON CAUSES OF DEGRADATION OF POLYESTER PROTECTIVE FILM ATTACHED ON GLASS CURTAIN WALLS2023

    • Author(s)
      TAKAHASHI Koichiro、OHTAKE Yoshito、KAWAHARA Seiichi
    • Journal Title

      AIJ Journal of Technology and Design

      Volume: 29 Issue: 71 Pages: 46-51

    • DOI

      10.3130/aijt.29.46

    • ISSN
      1341-9463, 1881-8188
    • Year and Date
      2023-02-20
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Preparation and characterization of deproteinized natural rubber/graphene oxide composite2023

    • Author(s)
      Thuong Nghiem Thi、Lam Nguyen Ba、Van Hoang Nguyen、Ha Cao Hong、Van Anh Nguyen、Binh Bui Thi Thanh、Nghia Phan Trung、Yusof Nurul Hayati、Huyen Luu Thanh、Kawahara Seiichi
    • Journal Title

      Journal of Polymer Research

      Volume: 31 Issue: 1 Pages: 13-13

    • DOI

      10.1007/s10965-023-03815-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A novel approach to prepare self-healing vulcanized natural rubber using tetramethylthiuram disulfide2023

    • Author(s)
      Nghiem Thuong Thi、Nguyen Ba Lam、Huyen Luu Thanh、Kawahara Seiichi
    • Journal Title

      Polymer Journal

      Volume: 55 Issue: 10 Pages: 1097-1102

    • DOI

      10.1038/s41428-023-00818-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure and mechanical properties of natural rubber vulcanized with various zinc oxide nanoparticles2023

    • Author(s)
      Kim Bunsreyneang、Boonkerd Kanoktip、Kawahara Seiichi
    • Journal Title

      Polymers for Advanced Technologies

      Volume: 34 Issue: 9 Pages: 3003-3010

    • DOI

      10.1002/pat.6123

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of water on the accelerated sulfur vulcanization of natural rubber2023

    • Author(s)
      Akahori Yayoi、Kawahara Seiichi
    • Journal Title

      Polymer Testing

      Volume: 123 Pages: 108030-108030

    • DOI

      10.1016/j.polymertesting.2023.108030

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Insights into self‐healing performance of epoxidized deproteinized natural rubber/graphene oxide composite2023

    • Author(s)
      Nguyen Lam Ba、Van Nguyen Hoang、Vu Cuong Quoc、Cao Ha Hong、Van Nguyen Anh、Kawahara Seiichi、Nghiem Thuong Thi
    • Journal Title

      Polymer Engineering & Science

      Volume: 63 Issue: 6 Pages: 1781-1791

    • DOI

      10.1002/pen.26324

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A polystyrene/silica hybrid nanomatrix formed in natural rubber2023

    • Author(s)
      Thi Nghiem Thuong、Yusof Nurul Hayati、Kawahara Seiichi
    • Journal Title

      Polymer Journal

      Volume: 55 Issue: 5 Pages: 631-637

    • DOI

      10.1038/s41428-022-00753-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Discovery of island-nanomatrix structure in natural rubber2023

    • Author(s)
      Kawahara Seiichi
    • Journal Title

      Polymer Journal

      Volume: 55 Issue: 10 Pages: 1007-1021

    • DOI

      10.1038/s41428-023-00797-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthetic Rubber with the Tensile Strength of Natural Rubber2022

    • Author(s)
      Kawahara Seiichi、Nishioka Hironari、Yamano Masaki、Yamamoto Yoshimasa
    • Journal Title

      ACS Applied Polymer Materials

      Volume: 4 Issue: 4 Pages: 2323-2328

    • DOI

      10.1021/acsapm.1c01508

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Graphene matrix formation in a natural rubber dispersoid2022

    • Author(s)
      Pham Minh Duc、Nguyen Quan Hai、Nguyen Quyen Thi、Cao Quan Anh、Nga Nguyen Kim、Kawahara Seiichi、Nguyen Ha Thu
    • Journal Title

      Polymer Journal

      Volume: 54 Issue: 5 Pages: 727-733

    • DOI

      10.1038/s41428-022-00620-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of naturally occurring proteins on graft copolymerization of vinyltriethoxysilane on natural rubber2022

    • Author(s)
      Thi Nghiem Thuong、Nguyen Thang Ngoc、Yusof Nurul Hayati、Kawahara Seiichi
    • Journal Title

      Polymer Journal

      Volume: 54 Issue: 5 Pages: 633-641

    • DOI

      10.1038/s41428-022-00616-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ゴム状態NMR 法による天然ゴムの加硫における加硫促進剤の効果に関する研究2022

    • Author(s)
      山野将輝、石田拓馬、山本祥正、河原成元
    • Journal Title

      日本ゴム協会誌

      Volume: 95 Pages: 293-297

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Quantitative analysis of crosslinking junctions of vulcanized natural rubber through rubber-state NMR spectroscopy2021

    • Author(s)
      Saito Takayuki、Yamano Masaki、Nakayama Kazumi、Kawahara Seiichi
    • Journal Title

      Polymer Testing

      Volume: 96 Pages: 107130-107130

    • DOI

      10.1016/j.polymertesting.2021.107130

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ATRP-ARGET of a Styrene Monomer onto Modified Natural Rubber Latex as an Initiator2021

    • Author(s)
      Tevenot Quentin、Kawahara Seiichi
    • Journal Title

      Langmuir

      Volume: 37 Issue: 20 Pages: 6151-6157

    • DOI

      10.1021/acs.langmuir.1c00168

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electromagnetic shielding material based on hydrogenated natural rubber/expanded graphite blend: Preparation and characterization2021

    • Author(s)
      Nguyen Thu Ha、Nguyen V?n‐Anh、Ougizawa Toshiaki、Kawahara Seiichi、Cao Hong Ha
    • Journal Title

      Polymers for Advanced Technologies

      Volume: 32 Issue: 8 Pages: 3008-3017

    • DOI

      10.1002/pat.5313

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Graft copolymerization of methyl methacrylate and vinyltriethoxysilane binary monomers onto natural rubber2021

    • Author(s)
      Nghiem Thi Thuong、Cao Hong Ha、Nurul Hayati Yusof、Kawahara Seiichi
    • Journal Title

      Journal of Polymer Research

      Volume: 28 Issue: 7 Pages: 246-246

    • DOI

      10.1007/s10965-021-02606-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Preparation and characterization of vulcanized natural rubber with high stereoregularity2021

    • Author(s)
      Yamano Masaki、Yamamoto Yoshimasa、Saito Takayuki、Kawahara Seiichi
    • Journal Title

      Polymer

      Volume: 235 Pages: 124271-124271

    • DOI

      10.1016/j.polymer.2021.124271

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ORIGIN OF ENERGETIC ELASTICITY AND ENTROPIC ELASTICITY OF NATURAL RUBBER WITH NANODIAMOND NANOMATRIX STRUCTURE2021

    • Author(s)
      Gannoruwa Asangi、Zhou Yuanbing、Kosugi Kenichiro、Yamamoto Yoshimasa、Kawahara Seiichi
    • Journal Title

      Rubber Chemistry and Technology

      Volume: 94 Issue: 4 Pages: 704-719

    • DOI

      10.5254/rct.21.79923

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ハイブリッドナノ海島構造を有する天然ゴムの調製と物性2023

    • Author(s)
      河原成元, Nghiem Thi Thuong, 山本祥正
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] タンパク質が加硫天然ゴムのシリカ分散/凝集に及ぼす影響2023

    • Author(s)
      福重航大, 河原成元
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] キトサンナノ粒子を用いた天然ゴムナノコンポジットの調製2023

    • Author(s)
      李斗南, 河原成元
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ARGET-ATRP of styrene onto a modified natural rubber latex as Macro-Initiator2023

    • Author(s)
      TEVENOT Quentin, Seiichi KAWAHARA
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effect of polyacrylonitrile-nanomatrix on vulcanization of proteins-free NR2023

    • Author(s)
      Pamanuluk KRITTIDECH, Seiichi KAWAHARA, Yoshimasa YAMAMOTO
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 天然ゴムの加硫におけるシリカおよびシランカッ プリング剤の効果2023

    • Author(s)
      徐紹倫, 山野将輝, 河原成元
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] スプレー乾燥により調製した天然ゴムの構造と 物性2023

    • Author(s)
      山本祥正, 佐々木杏奈, 河原成元
    • Organizer
      日本ゴム協会2023年年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 加硫天然ゴムの構造と伸長結晶化2023

    • Author(s)
      河原成元, 山野将輝, 山本祥正
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ハイブリッドナノ海島構造を有する天然ゴムの調製2023

    • Author(s)
      河原成元, Nghiem Thi Thuong, 山本祥正
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ナノマトリックスチャネルを有するプロトン伝導性高分子電解質膜の調製2023

    • Author(s)
      山本祥正, 石井 宏幸, 河原 成元
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Analyses of Crosslinking Junction, Strain-induced Crystallization and Mechanical Properties of Vulcanized Natural Rubber2023

    • Author(s)
      Seiichi KAWAHARA
    • Organizer
      RubberCon2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Establishment of Natural Rubber Chemistry toward Low Carbon Society2023

    • Author(s)
      Seiichi KAWAHARA
    • Organizer
      International Polymer Conference of Thailand (PCT-13)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然ゴムの加硫および物性におけるタンパク質の効果2023

    • Author(s)
      河原成元, 山野将輝, 山本祥正
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ゴム 法による加硫天然ゴムの構造解析2023

    • Author(s)
      河原成元, 山野将輝, 山本祥正
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 天然ゴムのスプレー乾燥におけるタンパク質の影響2023

    • Author(s)
      山本祥正, 佐々木杏奈, 河原 成元
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ナノマトリックスチャネルを有するプロトン伝導性高分子電解質膜の調製2023

    • Author(s)
      山本祥正, 石井宏幸, 河原 成元
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ARGET-ATRPによるスチレンおよびメタクリル 酸メチルの天然ゴムへのグラフト共重合2023

    • Author(s)
      秋山直輝, 河原成元, 山野将輝
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ナノ粒子のガラス転移温度がナノ海島構造を有す る天然ゴムの物性に及ぼす影響2023

    • Author(s)
      佐々木杏奈, 河原成元, 山野将輝
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒドロキシアパタイト-天然ゴム複合材料の調製 と物性2023

    • Author(s)
      鈴木絢斗, 山野将輝, 河原成元
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ゴムNMR法を用いた天然ゴムの加硫機構に関す る研究2023

    • Author(s)
      阿部大輔, 河原成元, 山野将輝
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ゴム状態NMR法による加硫天然ゴムおよび加硫 脱タンパク質化天然ゴムの構造解析2023

    • Author(s)
      山野将輝, 河原成元
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 過酸化物架橋天然ゴムの構造と物性2023

    • Author(s)
      渡邉涼太, 河原成元, 山野将輝
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ナノマトリックスを構造体としてのネットワー クとするゴム状ポリマーの調製と物性2023

    • Author(s)
      河原成元, 山野将輝, 山本祥正
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] スプレー乾燥により調製した天然ゴムおよび脱タ ンパク質化天然ゴムの構造と物性2023

    • Author(s)
      山本祥正, 佐々木杏奈, 河原成元
    • Organizer
      第34回エラストマー討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Structure and Properties of Vulcanized Natural Rubber2023

    • Author(s)
      Seiichi Kawahara
    • Organizer
      The Rubber- Elastomer Technology Association (RETA) International Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Discovery of Nanomatrix Structure of Natural Rubber and Its Application2022

    • Author(s)
      河原成元
    • Organizer
      12th RMUTNC and 11th RMUTIC
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然ゴムのナノ海島構造の発見とその応用2022

    • Author(s)
      河原成元
    • Organizer
      第71回高分子学会年次大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 天然ゴムラテックスのスプレー乾燥および加硫におけるその効果2022

    • Author(s)
      山本祥正、佐藤皓大、佐々木杏奈、河原 成元
    • Organizer
      第71回高分子学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ポリスチレンのナノマトリックス構造を有する天然ゴムの動的粘弾性2022

    • Author(s)
      河原成元、遠藤航太、山本祥正
    • Organizer
      第71回高分子学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Preparation and characterization of vulcanized natural rubber with high stereoregularity2022

    • Author(s)
      Masaki Yamano、Yoshimasa Yamamaoto、Seiichi Kawahara
    • Organizer
      第71回高分子学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ステアリン酸亜鉛を用いた高立体規則制加硫天然ゴムの調整と物性2022

    • Author(s)
      山野将輝、河原成元
    • Organizer
      日本ゴム協会 2022年年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Cure characteristics and mechanical properties of natural rubber when using various ZnO nanoparticles as curing activator2022

    • Author(s)
      Bunsreyneang Kim、Kanoktip Boonkerd、Seiichi Kawahara
    • Organizer
      日本ゴム協会 2022年年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 赤堀弥生、河原成元、日座操2022

    • Author(s)
      天然ゴムの硫黄促進剤加硫に及ぼす水分の影響
    • Organizer
      日本ゴム協会 2022年年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 天然ゴムラテックスのスプレー乾燥および加硫に2022

    • Author(s)
      山本祥正、佐藤皓大、佐々木杏奈、河原成元
    • Organizer
      日本ゴム協会 2022年年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Discovery of island-nanomatrix structure of natural rubber and its application to synthetic cis-1,4-Polyisoprene2022

    • Author(s)
      Seiichi Kawahara
    • Organizer
      the German Rubber Conference and the International Rubber Conference (IRC) 2021
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ナノマトリックスをネットワークとするゴム状ポリマーの創製と物性2022

    • Author(s)
      河原成元、山本祥正
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Cure characteristics and mechanical properties of natural rubber prepared with ZnO nanoparticles2022

    • Author(s)
      KIM Bunsreyneang、Kanoktip Boonkerd、Seiichi Kawahara
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Effect of proteins on the stereoregularity and mechanical properties of vulcanized natural rubber2022

    • Author(s)
      Masaki Yamano、Seiichi Kawahara
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Vulcanization mechanism of natural rubber2022

    • Author(s)
      Seiichi Kawahara
    • Organizer
      RubberCon2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然ゴムの加硫と伸長結晶化2022

    • Author(s)
      Seiichi Kawahara
    • Organizer
      第 70 回レオロジー討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Preparation and Mechanical Properties of Vulcanized Natural Rubber with High Stereoregularity2022

    • Author(s)
      Seiichi Kawahara
    • Organizer
      14th Fall Rubber Colloquium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然ゴムの加硫,伸長結晶化,引張強度2022

    • Author(s)
      河原成元、山野将輝、山本祥正
    • Organizer
      第33回エラストマー討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] スプレー乾燥により調製した天然ゴムの構造と物 性2022

    • Author(s)
      山本祥正、佐藤皓大、佐々木杏奈、河原成元
    • Organizer
      第33回エラストマー討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ATRP-ARGET of styrene monomer onto a modified natural rubber latex as a macro-initiator2022

    • Author(s)
      Quentin Tevenot , Seiichi Kawahara
    • Organizer
      第33回エラストマー討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ゴム劣化の基礎2022

    • Author(s)
      河原成元
    • Organizer
      日本ゴム協会, 第270回ゴム技術シンポジウム ゴム・エラストマーの環境劣化とその防止技術
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 天然ゴム化学の創成2022

    • Author(s)
      河原成元
    • Organizer
      日本ゴム協会, 東海支部 2021 年度アドバンストセミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Development of Sustainable Natural Rubber Ecosystem toward Creation of New Industry2021

    • Author(s)
      Seiichi Kawahara
    • Organizer
      American Chemical Society Rubber Division, Spring Meeting,
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Discovery of nanomatrix structure playing important role in degradation and vulcanization of natural rubber2021

    • Author(s)
      Seiichi Kawhara
    • Organizer
      German Rubber Society, Elastomer Symposium 2021,
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Discovery of Nanomatrix Structure of Natural Rubber and Structural Design of Its Mimetic Composites2021

    • Author(s)
      Seiichi Kawahara
    • Organizer
      The Society of Polymer Science, Japan, 4th G‘L’owing Polymer Symposium in KANTO,
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Discovery of Nanomatrix Structure of Natural Rubber and Preparation of Its Mimetic Composites2021

    • Author(s)
      Seiichi Kawahara
    • Organizer
      International Rubber Conference organization, RubberCon2021,
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 持続可能な天然ゴムエコシステム・新しいソフトマテリアル開発2021

    • Author(s)
      河原成元
    • Organizer
      日本化学会, 第11回CSJ化学フェスタ2021
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 天然ゴムのナノ海島構造の発見とその模倣ナノコンポジットの創製2021

    • Author(s)
      河原成元
    • Organizer
      SPE日本支部, 新規高機能ゴム材料および開発技術
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 長岡技術科学大学河原研究室2021

    • Author(s)
      河原成元
    • Organizer
      日本ゴム協会, 関東支部見学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] ナノマトリックス構造を有する合成シスポリイソプレンの調製と物性2021

    • Author(s)
      山野将輝, 河原成元, 西岡央成, 山本祥正
    • Organizer
      日本ゴム協会, エラストマー討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 非ゴム成分が天然ゴムの加硫に及ぼす影響2021

    • Author(s)
      瀬下涼太, 河原 成元
    • Organizer
      日本ゴム協会, エラストマー討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 天然ゴムの加硫に及ぼすMgO ナノ粒子の効果2021

    • Author(s)
      LUU THANH HUYEN, 河原成元
    • Organizer
      日本ゴム協会, エラストマー討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ポリアダマンチルメタクリレートのナノマトリックス構造を有する天然ゴムの調製と物性2021

    • Author(s)
      鈴木大輔, 河原成元
    • Organizer
      日本ゴム協会, エラストマー討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 天然ゴムにおけるZnの分散へのタンパク質の効果2021

    • Author(s)
      河原成元, 佐藤 皓大, 山本 祥正
    • Organizer
      日本ゴム協会, エラストマー討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ポリアダマンチルメタクリレートのナノマトリックス構造を有する天然ゴムの調製と物性2021

    • Author(s)
      鈴木大輔, 河原成元
    • Organizer
      高分子学会, 北陸支部大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナノマトリックス構造を有する合成シスポリイソプレンの調製と物性2021

    • Author(s)
      山野将輝, 西岡央成, 山本祥正, 河原成元
    • Organizer
      高分子学会, 北陸支部大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 非ゴム成分が天然ゴムの加硫に及ぼす影響2021

    • Author(s)
      瀬下涼太, 河原成元
    • Organizer
      高分子学会, 北陸支部大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 天然ゴムの加硫におけるタンパク質の効果2021

    • Author(s)
      河原成元, 佐藤皓大, 山本祥正
    • Organizer
      高分子学会, 討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナノマトリックス構造を有する天然ゴムのエントロピー弾性とエネルギー弾性の同時発現2021

    • Author(s)
      山本祥正, 遠藤航太, 河原成元
    • Organizer
      高分子学会, 討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ゴムNMR法による加硫天然ゴムの構造解析2021

    • Author(s)
      山野将輝, 山本祥正, 河原 成元
    • Organizer
      高分子学会, 討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナノマトリックス構造を有する合成ゴムの調製と物性2021

    • Author(s)
      河原成元, 西岡央成, 山本祥正
    • Organizer
      高分子学会, 年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ゴムNMR法を用いた加硫天然ゴムの構造解析2021

    • Author(s)
      山野将輝, 河原成元
    • Organizer
      日本ゴム協会, 年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effect of water on the ionic reaction of natural rubber2021

    • Author(s)
      赤堀弥生, 日座操, 河原成元
    • Organizer
      日本ゴム協会, 年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effect of nanomatrix structure on vulcanization of natural rubber2021

    • Author(s)
      KRITTIDECH PAMANULUK, SATO KOTA, YAMAMOTO YOSHIMASA, KAWAHARA SEIICHI
    • Organizer
      日本ゴム協会, 年次大会
    • Related Report
      2021 Research-status Report
  • [Book] Rubber, Natural2023

    • Author(s)
      Seiichi KAWAHARA
    • Total Pages
      34
    • Publisher
      John Wiley & Sons
    • Related Report
      2023 Annual Research Report
  • [Book] 持続可能な社会を支えるゴム・エラストマー2023

    • Author(s)
      日本化学会編
    • Total Pages
      196
    • Publisher
      化学同人
    • Related Report
      2023 Annual Research Report

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Published: 2021-07-13   Modified: 2025-01-30  

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