• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Synthesis of optically active polymers arising the chiral arrangement of monomeric units through cyclopolymerization

Research Project

Project/Area Number 09450345
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子合成
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

YOKOTA Kazuaki  Hokkaido Univ., Grad. School of Eng., Professor, 大学院・工学研究科, 教授 (30001217)

Co-Investigator(Kenkyū-buntansha) HASHIMOTO Hisaho  Tomakomai National College of Technology, Professor, 教授 (70180833)
SATOH Toshifumi  Hokkaido Univ., Grad. School. Of Eng., Instructor, 大学院・工学研究科, 助手 (80291235)
KAKUCHI Toyoji  Hokkaido Univ., Grad. School of Env. Earth. Assoc. Professor, 大学院・地球環境科学研究科, 助教授 (80113538)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥9,300,000 (Direct Cost: ¥9,300,000)
Fiscal Year 1999: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1997: ¥6,200,000 (Direct Cost: ¥6,200,000)
KeywordsAsymmetric polymerization / Cyclopolymerization / Chiral template / Optically active polymer / Divinyl monomer / Main-chain chirality / Chirality induction / 光学活性ポリマー / 不斉重合 / キラルテンフレート / キラル四連子 / キラルビニルポリマー
Research Abstract

(1) When the diad sequence A-A is a racemo configuration, the triad sequence A-A-B becomes chiral in a copolymer. This phenomenon was synthetically realized by cyclocopolymerization, because cleave of the cyclic unit affords the diad sequence A-A. Bis(p-vinylbenzoate) derivatives of chiral diol templates were copolymerized with styrene. The resulting poly[methyl methacrylate-co-styrene]s were optically active.
(2) The cyclocopolymerization of the dimethacrylate (MィイD21ィエD2), which was derived from 1,2: 5,6-di-O-isopropylidene-D-mannitol, with styrene (MィイD22ィエD2) induced new chirality in the polymer chain. The resulting poly [(methyl methacrylate)-co-styrene] had more active chirality with increasing the MィイD21ィエD2 unit, thus indicating that the new chirality was induced by the chiral A-A-A-A tetrad unit rather than the isolated A-A unit.
(3) The diad unit A-B without mirror planes affords chiral poly [A-alt-B]. The new aspect is realized by the enantioselective cyclopolymerization of unsymmetrical diene monomers. Methacryloyl and methyl fumaroyl derivative of chiral diol is a suitable monomer for this purpose. The resulting poly [(methy methacrylate)-alt-(methyl fumarate)]s were optically active.
(4) The bis(4-vinylbenzoate) monomers were useful for determining the absolute configuration of the cyclic units using the exciton chirality method. The chirality of dibenzoate showed the configurational change in the polymerization, and thus the template transmitted its chirality to the main chain during the intramolecular cyclization to form an enantiomeric cyclic unit.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] K.Yokota: "Chirality induction in cyclopolymerization"Acta Polymerica. 48・11. 459-470 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 覚知豊次: "キラルテンプレートを用いた不斉環化共重合"高分子論文集. 54・10. 684-695 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Obata: "Chirality induction in cyclopolymerization. 8. Cyclocopolymerization of 1,2 : 5,6-di-O-isopropylidene-3,4-di-O-methacryloyl-D-mennitol with styrene"Macromolecules. 30・3. 348-353 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Uesaka: "Chirality induction in cyclopolymerization.7. Asymmetric cyclopolymerization of 1,2 : 5,6-di-O-isopropylidene-3,4-bis-O-(4-vinylbenzoyl)-D-iditol with styrene"Enantiomer. 2・3-4. 215-223 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] O.Haba: "Chirality induction in cyclopolymerization.VI. Enantioselectve cationic cyclopolymerization of divinyl ethers with chiral 10-camphorsulfonic acid/zinc chloride"J.Polym.Sci. : Part A : Polym.Chem.. 35・2. 353-359 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Obata: "Chirality induction in cyclopolymerization.9. Characterization of chirality induction during the cyclocopolymerizations of (2S,3S)-2,3-butanediyl, (2S,4S)-2,4-pentanedily, and (2S,5S)-2,5-hexanediyl bis(4-vinylbenzoate)s with styrene"Macromolecules. 31・14. 4403-4409 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 覚知豊次: "[展望]不斉ラジカル重合"高分子. 48・6. 502-505 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Uesaka: "Chirality induction in cyclopolymerization.X. Structual effect of three D-mannitol templates in the cyclocopolymerization of bis)4-vinylbenzoate) with styrene"Polymer Journal. 31・4. 342-347 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K.Yokota: "Chirality induction in cyclopolymerization XI. Bulkiness effect of 1,2-diol templates on cyclocopolymerizations of bis(4-vinylbenzoate)s with styrene"Polymer Journal. 31・11-2. 1037-1040 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Obata: "Chirality induction in cyclopolymerization. 12. Conformational effect of monomer on asymmetric cyclocopolymerization of 2,3-bis-O-(4-vinylbenzoyl)-L-tartrates with styrene"Enantiomer. 4. 419-429 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Yokota, T. Kakuchi, T. Uesaka and M. Obata: "[Feature Article] Chirajity induction in cyclopolymerization"Acta Polymerica. 48. 459-470 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Kakuchi, T. Uesaka, M. Obata, and K. Yokota: "[Comprehensive Paper] Chirality induction in cyclocopolymerization arising from the chiral twist of templates (Japanese)"Kobunshi Ronbunshu. 54. 684-695 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] O. Haba, M. Obata, K. Yokota and T. Kakuch: "Chirality induction in cyclopolymerization. VI. Enantiose-lective cationic cyclopolymerization of divinyl ethers with chiral 10-camphorsulfonic acid/zinc, chloride initiating system"J. Polym. Sci. : Part A : Polym. Chem.. 35. 353-359 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Uesaka, E. Hamaya, O. Haba, T. Kakuchi and K. Yokota: "Chirality induction in cyclopolymerization. 7. Asymmetric cyclocopolymerization of 1,2 : 5,6-di-O-isopropylidene-3,4-bis-O-(4-vinylbenzoyl)-D-iditol with styrene"Enantiomer. 2. 215-223 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Obata, T. Kakuchi and K. Yokota: "Chira]ity induction in cyclopo]ymerization. 8. Cyclocopolymerization of 1,2:5,6-di-O-isopropyl idene-3 ,4-di-O-methacryloyl-D-mannitol with styrene"Macromolecules. 30. 348-353 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Obata, T. Uesaka, K. Yokota and T. Kakuchi: "Chirality induction in cyclocopolymerization. 9. Characterization of chirality induction during the cyclocopol:ymerizations of (2S,3S)-2,3-butanediyl, (2S,4S)-2,4-pentanediyl, and (2S,5S)-2,5-hexanediyl bis(4-vinylbenzoate)s with styrene"Macromolecules. 31. 4403-4409 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Uesaka, Y. Sugiura, M. Obata, A. Narumi, K. Yokota and T. Kakuchi: "Chirality induction in cyclopol),merization X. Structural effect on three D-mannitol templates in the cyclocopolymerization of bis(4-vinylbenzoate) with styrene"Polym. J.. 31. 342-347 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Yokota, T. Uesaka, M. Obata, H. Shimomura and T. Kakuchi: "Chirality induction in cyclocopolymerization XI. Bulkiness effect of 1,2-diol templates on cyclocopolymerizations of bis(4-vinylbenzoate)s with styrene"Polymer Journal. 31. 1037-1040 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Obata, N. Yamamoto, K. Yokota and K. Kakuchl: "Chirality induction in cyclocopolymerization. 12. Conformational effect of monomer on asymmetric cyclocopolymerization of 2,3-bis-O-(4-vinylbenzoyl)-L-tartarates with styrene"Enantiomer. 4. 419-429 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Kakuchi and K. Yokota: "[Review] Asymmetric radical polymerization (Japanese)"High Polymers, JAPAN. 48. 502-505 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 覚知豊次: "〔展望〕不斉ラジカル重合"高分子. 48・6. 502-505 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Uesaka: "Chirality induction in cyclpolymerization. X. Structural effect of three D-mannitol templates in the cyclocopolymerization of bis)4-vinylbenzoate) with styrene"Polymer Journal. 31・4. 342-347 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K. Yokota: "Chirality induction in cyclocopolymerization. XI. Bulkiness effect of l,2-diol templates on cyclocopolymerizations of bis(4-vinylbenzoate)s with styrene"Polymer Journal. 31・11-2. 1037-1040 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M. Obata: "Chirality induction in cyclocopolymerization. 12. Conformational effect of monomer on asymmetric cyclocopolymerization of 2,3-bis-O-(4-vinylbenzoyl)-L-tartrates with styrene"Enantiomer. 4. 419-429 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Obata: "Chirality induction in cyclopolymerization 9. Characterization of chirality induction duting the cyclocopolymenzations of (2S,3S)-2,3-butanediyl, (2S,4S)-2,4-pentanediyl, and (2S,5S)-2,5-hexanediyl bis(4-vinylbenzoate)s with styrene" Macromolecules. 31・14. 4403-4409 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Uesaka: "Chirality induction in cyclopolymerization X. Structural effect of three D-mannitol templates in the cyclocopolymerization of bis)4-vinylbenzoate) with styrene" Polymer Journal. 31・4. 印刷中 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Yokota: "Chirality induction in cyclopolymerization" Acta Polymerica. 48・11. 459-470 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 覚知豊次: "キラルテンプレートを用いた不斉環化共重合" 高分子論文集. 54・10. 684-695 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Obata: "Chirality induction in cyclopolymerization. 8. Cyclocopolymerization of 1,2:5,6-di-Ο-isopropylidene-3,4-di-Ο-methacryloyl-D-mennitol with styrene" Macromolecules. 30・3. 348-353 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Uesaka: "Chirality induction in cyclopolymerization. 7. Asymmetric cyclocopolymerization of 1,2:5,6-di-Ο-isopropylidene-3,4-bis-Ο-(4-vinylbenzoyl)-D-iditol with styrene" Enantiomer. 2・3-4. 215-223 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] O.Haba: "Chirality induction in cyclopolymerization. VI. Enantioselectve cationic cyclopolymerization of divinyl ethers with chiral lO-camphorsulfonic acid/zinc chloride initiating system" J.Polym.Sci.:Part A:Polym.Chem.35・2. 353-359 (1997)

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi