界面缩聚合成含偶氮基团的双酚A聚芳酯

Synthesis of Bisphenol-A Polyarylester with Azobenzene Group by Interfaclal Polycondensation

以3,3’-偶氮苯二甲酰氯、双酚A为原料,十六烷基三甲基溴化铵为相转移剂,通过界面缩聚合成了含偶氮基团的双酚A聚芳酯,研究了反应时间,十六烷基三甲基溴化铵的量及3,3’-偶氮苯二甲酰氯与双酚A的摩尔比对聚合物的对数比浓粘度(ηinh)和收率的影响。最佳工艺条件为:酰氯与双酚A的摩尔比为1:1,十六烷基三甲基溴化铵量为0.5g,反应时间为2h,聚合物的对数比浓粘度(ηinh)为0.16,转化率为90.6%。红外光谱表征了聚合物的结构,紫外光谱证实了聚合物的顺反构型的可逆转变。

Using 3,3＇ -azobenzene dicarbonyl chloride and bisphenol -A （BPA） as materials, hexadecyl trimethyl ammonium bromide as phase transfer catalyst, bisphenol - A polyarylester with azobenzene group was synthesized by interracial polycondensation. The effects of reaction time, content of hexadecyl trimethyl ammonium bromide and mol ratio of 3,3＇ - azobenzene dicarbonyl chloride and bisphenol- A on inherent viscosity and yields were investigated. The optimum conditionswere obtained as follows： n（3,3＇ -azobenzene dicarbonyl chloride） ：n（bisphenol -A） = 1：1, reaction time 2h, content of hexadecyl trimethyl ammonium bromide 0.4g. The yield of polymer is 90.6% and inherent viscosity is 0. 16. The structure of polymer was confined by IR spectra. The reversible cis/ trans isomerization was performed by UV spectra.