文献类型：期刊文献

中文题名：有机胺催化酯交换合成聚碳酸酯树脂工艺

英文题名：Synthesis of polycarbonate through melt transesterification process catalyzed with organic amine

作者：赵贺猛[1];田恒水[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2010

卷号：29

期号：1

起止页码：67

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚碳酸酯;熔融酯交换;有机胺

外文关键词：polycarbonate; melt transesterification; organic amine

摘要：研究了以碳酸二苯酯(DPC)和双酚A(BPA)为原料,氢氧化四乙基铵(TEAH)为催化剂,熔融酯交换合成聚碳酸酯的工艺。其催化剂用量、原料配比、反应时间等工艺条件对产物分子量等参数有较大的影响。与以氢氧化钠作催化剂相比,在所得的较优条件下以TEAH为催化剂,可得到分子量较高、分子量分散指数低、熔体流动性好、支化重排产物少、基本无色的聚碳酸酯树脂。
The synthesis of polycarbonate （PC） by melt transesterification from diphenol carbonate （DPC） with 4,4＇-dihydroxy-diphenyl-2,2-propane （BPA） using tetraethyl ammonium hydroxide （TEAH） as catalyst was experimentally studied. The properties of the resulting polymer was influenced markedly by the operating conditions including the concentration of catalyst, the ratio of DPC/BPA and reaction times in different processing stages. Compared with NaOH, using TEAH as catalyst under the optimized process conditions, an almost colorless PC was obtained with relatively higher molecular weight, narrower molecular weight distribution and less branching and rearranging side-products.