Development of Photobase Generator with Benzoin Derivatives and Its Application to Photosensitive Materials
作者:Nobuhiro Ishikawa、Koji Arimitsu、Takahiro Gunji、Yoshimoto Abe
DOI:10.1246/cl.131148
日期:2014.5.5
We developed novel photobase generators (PBGs) that generate radicals and aliphatic amines simultaneously. We demonstrated that the PBGs induced radical polymerization and hydrolytic polycondensation. A film of poly[(methacryloxypropyl)silsesquioxane] (MA-PS) was cured in the presence of a PBG upon UV-light irradiation at 254 nm. This result showed that radical polymerization of methacryloyl groups of MA-PS with the photogenerated radicals and the crosslinking reactions based on the base-catalyzed condensation reactions of alkoxysilyl units of MA-PS proceeded. Furthermore, pencil hardness showed HB at 1.0 J cm−2 and 4H at 21.6 J cm−2 without heat treatment.
我们开发了一种新型光碱基生成剂(PBGs),能同时生成自由基和脂肪族胺。我们证明这些PBGs引发了自由基聚合和缩聚反应。在254 nm紫外光的照射下,含有PBGs的聚[(甲基丙烯酰氧丙基)倍半硅氧烷](MA-PS)薄膜完成固化。这一结果表明,MA-PS中的甲基丙烯酰基团与光生自由基之间进行了自由基聚合反应,同时基于碱催化缩合反应的MA-PS中的烷氧基硅单元产生了交联反应。此外,未经热处理,铅笔硬度显示在1.0 J cm−2时为HB,21.6 J cm−2时增加到4H。