Effects of the Structure of p-Oligodimethylsiloxanyl Substituents of Polystyrene on Glass Transition Temperature and Oxygen Permeability of the Polymer
Effects of the Structure of p-Oligodimethylsiloxanyl Substituents of Polystyrene on Glass Transition Temperature and Oxygen Permeability of the Polymer
复制标题
聚苯乙烯对低聚二甲基硅氧烷基取代基结构对聚合物玻璃化转变温度和透氧率的影响
DOI：
10.1295/polymj.20.685
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
Y. Yamashita
中科院分区：
文献类型：
--
作者：
Yuhsuke Kawakami;Takayuki Sugisaka;Y. Yamashita
Polystyrenes with isomeric p-oligodimethylsiloxanyl substituents were synthesized in order to elucidate the roles of these substituents on their film forming properties and oxygen permeation behavior. Branched chain oligodimethylsiloxanyl substituents gave polymers with higher glass transition temperatures than did straight chain substituents. It was indicated from the permeation experiments that trimethylsiloxyl groups in p-oligodimethylsiloxanyl substituents played essential roles in permeation by increasing the diffusion coefficient. The roles of the substituents are further discussed based on the spin-relaxation behavior of the polymers in the solid state.
