中国塑料 ›› 2011, Vol. 25 ›› Issue (05): 51-54 .DOI: 10.19491/j.issn.1001-9278.2011.05.011

• 材料与性能 • 上一篇    下一篇

星形聚丁二酸丁二醇酯的合成及性质

崔春娜 张敏 黄继涛   

  1. 宁德师范学院
  • 收稿日期:2011-03-09 修回日期:1900-01-01 出版日期:2011-05-26 发布日期:2011-05-26

Synthesis and Properties of PBS with Star-shaped Structure

  

  • Received:2011-03-09 Revised:1900-01-01 Online:2011-05-26 Published:2011-05-26

摘要: 以丁二酸、丁二醇、丙三醇为原料,通过熔融缩聚合成了三臂星形结构的聚丁二酸丁二醇酯(s-PBS),运用红外光谱、凝胶渗透色谱、差示扫描量热仪、热重分析仪和偏光显微镜对其进行了表征及性能研究。结果表明,合成的s-PBS的数均相对分子质量为7.32×104,结晶度约为76 %,熔点为115.4 ℃ ,在堆肥培养液中降解60 d后的生物降解率达54.16 %。

关键词: 合成, 聚丁二酸丁二醇酯, 星形结构, 热性能, 降解性能

Abstract: Three arm star-shaped poly (butylene succinate) (s-PBS) was synthesized by melt polycondensation from 1,4-succinate, butanediol, and glycerin, with titanic acid ester as chief catalyst and acetate as assistant catalyst. The property of s-PBS was characterized using FTIR, DSC, GPC,TGA, and POM. The number average molecular weight was found to be 7.32×104, the degree of crystallinity was 76 %, the melting temperature was 115.4 ℃. After biodegradation in compost for 60 days, the biodegradation percentage of s-PBS reached to 54.16 %.

Key words: synthesis, poly ( butylene succinate), star-shaped structure, thermal property, biodegradability

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