Studies on the Synthesis of Degradable Polymers by Radical Polymerization and the Design of Dismantlable Adhesion Materials

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  • ラジカル重合による分解性ポリマーの合成と解体性接着材料の設計に関する研究
  • ラジカル ジュウゴウ ニ ヨル ブンカイセイ ポリマー ノ ゴウセイ ト カイタイセイ セッチャク ザイリョウ ノ セッケイ ニ カンスル ケンキュウ

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Abstract

<p>Dismantlable adhesion as the on-demand dismounting technology attracted attention in various applications in order to save resources and energies. The adhesion properties of dismantlable adhesive materials are required to instantaneously change in response to any external stimulus as the trigger for dismantling. In this comprehensive paper, we reported dismantlable adhesion systems using linear and network polyperoxides containing peroxy bonds in the main-chain repeating units or in the crosslinking points, as well as the acrylate block copolymers containing reactive side groups, which were responsible to photoirradiation and the postbaking. The dismantlable adhesion using the polyperoxides was responsive to heat or UV irradiation and showed a drastic change in the adhesion properties. We further developed a dual-locked adhesion system consisting of two kinds of triggers for dismounting in order to avoid the trade-off relationship of stability during use and high sensitivity to stimuli upon dismantling. We demonstrated the validity of the dual-locked adhesion system using acrylate block copolymers as the pressure-sensitive adhesive materials in the presence of a photochemical acid generator. We also reported the synthesis of high-molecular-weight acrylate block copolymers as the high-performance dismantlable adhesives using an organotellurium-mediated living radical polymerization.</p>

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