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2003 Fiscal Year Final Research Report Summary

Studies on Environmentally Friendly Photocrosslinkable Polymers

Research Project

Project/Area Number 13450382
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子合成
Research InstitutionOsaka Prefecture University

Principal Investigator

SHIRAI Masamitsu  Osaka Prefecture University, Department of Applied Chemistry, Professor, 工学研究科, 教授 (00081331)

Co-Investigator(Kenkyū-buntansha) OKAMURA Haruyuki  Osaka Prefecture University, Department of Applied Chemistry, Research Associate, 工学研究科, 助手 (10316010)
SUYAMA Kannji  Osaka Prefecture University, Department of Applied Chemistry, Assistant Professor, 工学研究科, 講師 (90305649)
Project Period (FY) 2001 – 2003
KeywordsPhotoacid Generator / Photobase Generator / Photocrossliking / Thermal degradation / Redissolution / Epoxy resin / Photocuring / Rework
Research Abstract

1)New photoacid generators which are sensitive to 366nm light were synthesized from sulfonic acid anhydride and oximes or N-hydroxyimide and characterized. In the molecular design fluorenone or thioxantone derivatives were used as chromophores for 36nm light. The photoacid generators obtained were thermally stable and highly photosensitive to 366nm light.
2)We have synthesized a novel crosslinker which has three epoxy moieties and thermally degradable carboxylic acid ester moieties in a molecule. On irradiation at 254nm, the thin films obtained from the mixture of the triepoxy crosslinker, polyvinylphenol and photoacid generator became insoluble in solvents due to the formation of networks. The crosslinked materials became soluble in solvent when baked at relatively higher temperatures (-160 ℃). It was found that this system could be applied for 366nm or 436nm light if the photoacid generators were properly selected. We have also synthesized a novel monomer which has an epoxy moiety and thermally degradable sulfonic acid ester moieties in a molecule. The polymer was obtained by the polymerization of the monomer. On irradiation at 254nm, the thin films obtained from the polymer and photoacid generator became insoluble in solvents due to the formation of networks. The crosslinked materials became soluble in water when baked at relatively higher temperatures.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] M.Shirai: "Photo-Cross-Linkable Polymers Having Degradable Properties on Heating"Chemistry of Materials. 15. 4075-4081 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C.Iwashima: "Synthesis of i- and g-Line Sensitive Photoacid Generators and Their Application to Photopolymer Systems"Journal of Photopolymer Science and Technology. 16. 91-96 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Suyama: "Photo- and Thermochemical Behavior of Quaternary Ammonium Thiocyanates and Their Use as Crosslinkers"Journal of Photopolymer Science and Technology. 16. 83-86 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Okamura: "Evaluation of Quantum Yields for Decomposition of i-Line Sensitive Photoacid Generators"Journal of Photopolymer Science and Technology. 16. 701-706 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 白井 正充: "再可溶化型光架橋・硬化樹脂"色材協会誌. 76. 301-306 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shirai(分担執筆): "Polymers for Microelectronics and Nanolectronics (ACS Symposium Series 874)"American Chemical Society, Washington DC. 12 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shirai, et al.: "Photo-Cross-Linkable Polymers Having Degradable Properties on Heating"Chem.Mater. 15. 4075-4081 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Iwashima, et al.: "Synthesis of i-and g-Line Sensitive Photoacid Generators and Their Application to Photopolymer Systems"J.Photopolym.Sci.Technol.. 16. 91-96 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Suyama, et al.: "Photo-and Thermochemical Behavior of Quaternary Ammonium Thiocyanates and Their Use as Crosslinkers"J.Photopolym.Sci.Technol.. 16. 83-86 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Okamura, et al.: "Evaluation of Quantum Yields for Decomposition of i-Line Sensitive Photoacid Generators"J.Photopolym.Sci.Technol.. 16. 83-86 (2003)

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

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Published: 2005-04-19  

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