高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (10): 1761.

• 研究论文 • 上一篇    下一篇

新型芳香型超支化聚酯的合成与应用研究

张晓龙, 唐黎明, 邱藤, 付永柱, 刘德山   

  1. 清华大学化工系和材料科学与工程研究院, 北京 100084
  • 收稿日期:2000-08-16 出版日期:2001-10-24 发布日期:2001-10-24
  • 通讯作者: 唐黎明(1967年出生),男,博士,副教授,从事精细及功能高分子研究.E-mail:tanglm@tsinghua.edu.cn E-mail:tanglm@tsinghua.edu.cn

Synthesis and Application of a Novel Aromatic Hyperbranched Polyester

ZHANG Xiao-Long, TANG Li-Ming, QIU Teng, FU Yong-Zhu, LIU De-Shan   

  1. Department of Chemical Engineering and School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2000-08-16 Online:2001-10-24 Published:2001-10-24

摘要: 以3,5-二羟基苯甲酸(DBA)为原料,通过酯化反应及酯化产物与氯乙醇的反应合成了单体3,5-二羟乙氧基苯甲酸丙酯(PDEB);通过PDEB的熔融缩聚,合成了具有芳脂型结构的超支化聚合物PPDEB,并对其进行了表征;研究了PPDEB对聚碳酸酯(PC)的流变改性作用.

关键词: 超支化聚合物, 芳香型聚酯, 熔融缩聚, 流变改性

Abstract: New aromatic AB2-type monomer propyl 3,5-(dihydroxyethoxy) benzoate PDEBwas synthesized by two steps, firstly the esterification of 3,5-dihydroxybenzoic acid by propanol, then the alkoxylation of the intermediate product with 1-chloroethanol. By polycondensation of PDEB, a hyperbranched aromatic polyester with aliphatic chain segments was effectively prepared. The structure of the product was analyzed by IR, 1H NMR, DSC, TGAand viscosity measurements. The results showed that the Tg of PPDEBdecreased sharply with little change in td

Key words: Hyperbranched polymer, Aromatic polyesters, Melting polycondensation, Rheology modification

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