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1997 Fiscal Year Final Research Report Summary

Fabrication of oxygen permeable films of polyacetylenes bearing ester group as a side chain and its evaluation.

Research Project

Project/Area Number 07455368
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

TABATA Masayoshi  Hokkaido Univ., Graduate School of Eng.Assoc.Prof., 大学院・工学研究科, 助教授 (50091476)

Co-Investigator(Kenkyū-buntansha) YOKOTA Kazuaki  Hokkaido Univ., Graduate School of Eng., Prof., 大学院・工学研究科, 教授 (30001217)
Project Period (FY) 1995 – 1997
KeywordsRh complex catalyst / Polyacetyelene / Stereoregurality / Oxgen permeable film / Oxygen permeable coefficient / Cast / Columnar / Pseudohexagonal
Research Abstract

It has been demonstrared that strereoregular polymerization monosubstituted acetylenes were successfully achieved using Rh complex catalysts in the presence of triethylamine or alchohol under fairly mild conditions and the resulting polyacetylenes were carefully characterized using lasr Raman, diffuse reflective UV,NMR,and electron spin resonance (ESR) methods. ^<1-2)> Consequently we found that the Rh complex is a preffered catalyst for formation of cis-transoid polyacetylenes even at room temperature. Acetylene esters bearing n-akllkyl group in the side chain were aslo stereoregularly polymerized to give the corresponding polyacetylene esters' using methanol as the polymerizaion solvent. ^<3)> The ester polymers were found to have a pseudohexagonal structure called columnar as self assembly useful for the oxygen permeable films. ^<4-5,13)> The polyacetylene esters were cast from chloroform and the oxygen permeability was estimated using a so-called GAS PERM,i.e., the separationcoefficient of the ratio, P_<O2>/P_<N2> was ca. alpha=3.4 comparable for other polmers bearing silicon moieties, suggesting that this polymer is promising new materials for oxygen permeable films. Further, the polyacetylenes prepared with Rh complex catalyst was found to be isomerized by compression even at room temperature in order to give the trans isomers involving a large amount of radicals as solitons. ^<4-6)>

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Masayoshi Tabata: "Fofmation of Columnar from Poly(p-methylethynylbenzene)Polymerized Using〔Rh(norbornadiene)Cl〕2 as a Catalysy.AnX-ray and ESR Study" Jpn.J.Appl.Phys.,. 35. 5411-5415 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayoshi Tabata: "Hexagonal Columnars of Poly(n-alkylpropiolate)Produced with Rhodium Complex Catalyst.X-ray Analysis and Oxygen Permeability"" Macromolecules. 29. 5573-6675 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayoshi Tabata: "Columnar Formation from Polyethynylbenzene and Poly(p-methylethynyl benzene)Polymerized Using〔Rh(norbornadiene)Cl〕2 as Catalyst.An X-ray" J.Macromoleclar Sci.-Pure Appl.Chem.A34. 641-653 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayoshi Tabata: "Rh錯体触媒によるカラムナ-構造を有するポリアセチレンの合成" 高分子論文集、〔総合論文〕. 54. 863-874 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayoshi Tabata: "Poly((o-ethoxyphenylacetylene)Stereoregularly Polymerized Using a Rh Complex Catalyst"" Macromolecules. 30. 5200-5204 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayoshi Tabata: "Pressure-Induced Cis to Trans Isomerization of Aromatic Polyacetylenes Prepared Using a Rh Complex Catalyst:A Control of π-Conjugation Length" J.Polym.Sci.,Part A:Polym.Chem.,. 36. 217-223 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Tabata: "Formation of Columnar from Poly (rho-methylethynylbenzene) Polymerized Using [Rh (norbornadiene )Cl] 2 as a Catalyst. An X-ray and ESR Study" Jpn.J.Appl.Phys.35 (10). 5411-5415 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Tabata: "Hexagonal Columas of Poly (eta-alkylpropiolate) Produced with Rhodium Complex Catalyst. X-ray Analysis and Oxygen Permeability" Macromolecules. (20). 5573-6675 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Tabata: "Columnar Formation from Polyethynylbenzene and Poly (rho-methylethynyl benzene) Polymerized Using [Rh (norbornadiene) Cl] 2 as Catalyst. An X-ray and ESR Study" J.Macromoleclar Sci.-Pure Appl.Chem., Pure Appl.Chem.A34. 641-653 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Tabata: "Synthesis of Columnar Poly acetylenes by Rh Complex Catalyst." Kobunshi Ronbunshu. 54 (12). 863-874 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Tabata: "Poly ((omicron-ethoxyphenylacetylene) Stereoregularly Polymerized Using a Rh Complex Catalyst" Macromolecules. 30 (18). 5200-5204 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Tabata: "Pressure-Induced Cis to Trans Isomerization of Aromatic Polyacetyl enes Prepared Using a Rh Complex Catalyst : A Control of pi-Conjugation Length" J.Polym.Sci., Part A : Polym.Chem.36. 217-223 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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