文献类型：期刊文献

中文题名：高摩尔质量PBS的合成工艺研究

英文题名：The Synthetic Technology of PBS with High Molecular Weight

作者：邓艳丽[1];杨景辉[1];吴传昱[1]

机构：[1]华东理工大学国家超细粉末工程研究中心,上海200237

年份：2011

卷号：39

期号：8

起止页码：22

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

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

语种：中文

中文关键词：聚丁二酸丁二醇酯;直接酯化;缩聚;钛酸四丁酯;合成工艺

外文关键词：PBS; Direct Esterification ; Polycondensation ; Tetrabutoxytitanium ; Synthesize Process

摘要：用丁二酸、丁二醇为原料,以钛酸四丁酯为催化剂,采用直接酯化缩聚的方法合成了聚丁二酸丁二醇酯(PBS)。考察了醇酸比、催化剂用量、聚合温度对PBS的黏度及酸值的影响。实验获得最佳合成条件为:醇酸物质量之比1.3,催化剂质量分数为0.03%,并在酯化后加入,缩聚温度为230℃。用凝胶渗透色谱仪对聚合物的摩尔质量进行了表征,通过工艺优化可得到重均摩尔质量约为12万g/mol的PBS。
In this article, synthesis of poly （butylenes succinate） （PBS） with high molecular weight was presented using butanediol and succinic acid in the presence of tetrabutoxytitanium as catalyst by direct esterification and polycondensation route. The reaction conditions, monomer feed molar ratio, temperature and catalyst concentration, were investigated in detail. The optimum reaction conditions were mass ratio of alkyd material was 1.3, and catalyst was 0. 03%, after the addition of esterification, the polycondensation temperature was of 230 ℃. It was found for synthesis of PBS with high molecular weight by measurement of intrinsic viscosity and carboxyl content of the polymers. GPC measurements showed that the Mw of the PBS could reach 12 × 104.