Application of Networked PolymersFormed by Photo-Cationic Polymerization with a Central Focus on Sulfonium Salts

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  • Toshihiko Murai
    Information Media Materials Development Laboratory, R&D Division, ADEKA Corporation

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  • スルホニウム塩を中心とした光カチオン重合による ネットワークポリマーの展開
  • スルホニウムエン オ チュウシン ト シタ ヒカリ カチオン ジュウゴウ ニ ヨル ネットワークポリマー ノ テンカイ

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Abstract

<p>Photo (Light) curing materials consisting of various monomers, pre-polymers, and additives such as photo-cationic initiators, are used for coatings, adhesives, moldings, and photolithography. The chemical reactions such as polymerization/cross-linking of these materials, may occur quickly by photo-irradiation. For that reason, these materials and technologies are very useful and essential in various fields of industries such as electricity, mobility, semiconductors, etc. For the consideration of the global environment, photo curing technologies are developed as efficient productive technologies with high productivity, low energy, requiring little space, and so on. As features of these technologies, solvent-free reaction can be possible, and low heat resistant materials can be also applicable. In this review, a summary of photo-initiators, application of networked polymers formed by photo-cationic polymerization with a central focus on sulfonium salts, are explained.</p>

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