摘要
研究了由对苯二甲酸二甲酯 (DMT)、间苯二甲酸 (IPA)和间苯二甲酸二甲酯 5 -磺酸钠 (SIPM)与乙二醇 (EG)和聚乙二醇 (PEG)等共缩聚合成的水溶性聚酯的溶解性能。研究结果表明 ,随分子链中间苯二甲酸乙二醇酯 5 -磺酸钠 (SIPE)链节含量的增加 ,聚合物的水溶性增强 ,对外加盐的容忍度提高 ;水溶性聚酯能溶于某些有机溶剂 ,但有时在同一溶剂中不同样品的溶解性表现出明显差异。
The solubility of water- soluble polyesters prepared by the copolycondensation of dimethyl terephthalate, iso- phthalic acid,dimethyl isophthalate- 5- sulfonic sodium with ethylene glycol and poly ( ethylene glycol) , etc.,was investigated. It is found that,with the increase of bis( 2 - hydroxethyl) isophthalate- 5- sulfonic sodium chain element,the solubility of water- soluble polyesters in water and limited concentration of added salt Na Cl in aqueous solutions of water- soluble polyesters are increased. The water- soluble polyesters are soluble in some organic solvents,but sometimes show obvions different solubility in same solvent between different samples.
出处
《合成技术及应用》
1998年第4期7-9,共3页
Synthetic Technology & Application
关键词
水溶性聚酯
溶解性
结构
性能
聚酯
water- soluble polyesters,solubility
limited concentration of added salt
structure and property
