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首页> 外文期刊>RSC Advances >Cationically photopolymerizable epoxy-functionalized thermoplastic polysilsesquioxanes: synthesis and properties
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Cationically photopolymerizable epoxy-functionalized thermoplastic polysilsesquioxanes: synthesis and properties

机译：阳离子可光聚合的环氧官能化热塑性聚倍半硅氧烷：合成与性能

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摘要

A series of epoxy-functionalized inorganic-organic hybrid ladder-like structured polysilsesquioxanes were synthesized in one-batch via a base-catalyzed co-solvent system. Two types of epoxy functionalities were examined: aliphatic and cycloaliphatic. Obtained polymeric epoxy-functionalized ladder-like polysilsesquioxanes were cationically photopolymerized under UV irradiation over glass and plastic substrates. Obtained cross-linked films were examined as hardcoating materials as their thermal, optical, mechanical, and barrier properties were studied. These materials showed superior thermal properties (T-d > 400 degrees C), high optical transparency (>95%), high pencil hardness (4H-9H), low dielectric constant (3.0-3.6), and good barrier properties (WVTR < 10(1) g m(-2) day(-1), OTR < 10(2) g m(-2) day(-1)).
机译：通过碱催化的共溶剂体系一次合成了一系列环氧官能化的无机-有机杂化梯状结构的聚倍半硅氧烷。检查了两种类型的环氧官能团：脂族和脂环族。将获得的聚合物环氧官能化的梯状聚倍半硅氧烷在紫外线辐射下在玻璃和塑料基材上进行阳离子光聚合。研究了获得的交联膜作为硬涂层材料的性能，研究了它们的热，光学，机械和阻隔性能。这些材料显示出优异的热性能（Td> 400摄氏度），高光学透明度（> 95％），高铅笔硬度（4H-9H），低介电常数（3.0-3.6）和良好的阻隔性能（WVTR <10（ 1）gm（-2）天（-1），OTR <10（2）gm（-2）天（-1））。

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