Synthesis of silyl-disubstituted poly(p-phenylenevinylene) membranes and their gas permeability
作者:Toshikazu Sakaguchi、Miki Sato、Tamotsu Hashimoto
DOI:10.1016/j.polymer.2013.03.007
日期:2013.4
method to afford silyl-disubstituted poly(p-phenylenevinylene)s (2a–e). The polymers containing SiMe3 groups (2a) showed poor solubility and dissolved in only CHCl3. On the other hand, the other polymers (2b–e) exhibited good solubility in common organic solvents. According to thermogravimetric analysis (TGA), the silyl-disubstituted poly(p-phenylenevinylene)s showed high thermal stability (thermal decomposition
具有两个甲硅烷基的对-双(溴甲基)苯[SiMe 2 - n -C 8 H 17,SiMe 3(1a),SiMe 2 - n -C 8 H 17,SiEt 3(1b),SiMe 2 - n -C 8 H 17,SiMe 2 - n -C 8 H 17(1c),SiMe 2 - n -C 8 H 17,SiMe 2- Ñ -C 18 ħ 37(1D),森2 - Ñ -C 18 ħ 37,森达2 - Ñ -C 18 ħ 37(1E)]通过Gilch方法聚合,得到甲硅烷基-二取代的聚(p -phenylenevinylene) s(2a – e)。含SiMe 3基(2a)的聚合物溶解性差,仅溶于CHCl 3中。另一方面,其他聚合物(2b – e)在普通有机溶剂中显示出良好的溶解性。根据热重分析(TGA),甲硅烷基取代的聚(p -phenylenevinylene)S表现出较高的热稳定性(热分解温度:Ť