中国塑料 ›› 2010, Vol. 24 ›› Issue (09): 27-30 .DOI: 10.19491/j.issn.1001-9278.2010.09.007

• 材料与性能 • 上一篇    下一篇

聚丁二酸丁二醇/二甘醇酯的合成研究

肖峰;王庭慰;丁培;王景春   

  1. 南京工业大学
  • 收稿日期:2010-05-14 修回日期:1900-01-01 出版日期:2010-09-26 发布日期:2010-09-26

Study on Synthesis of Poly( utylenes succinate-co-diethylene succinate)

  • Received:2010-05-14 Revised:1900-01-01 Online:2010-09-26 Published:2010-09-26

摘要: 以丁二酸、1,4-丁二醇和二甘醇为原料,合成了可生物降解的脂肪族聚(丁二酸-丁二醇-二甘醇)酯(PBDGS)。通过核磁共振仪、气相凝胶色谱以及差示扫描量热仪研究了醇酸摩尔比、催化剂种类以及缩聚温度对聚酯性能的影响。结果表明,以单丁基氧化锡(MBTO)为催化剂,当醇酸配比为1.15:1(摩尔比,下同)时,在230 ℃的缩聚温度下,制得的PBDGS相对分子质量最高,数均相对分子质量为3.7×104g/mol,重均相对分子质量为6.9×104g/mol。

关键词: 聚(丁二酸-丁二醇-二甘醇)酯, 合成, 生物降解

Abstract: Biodegradable poly(butylene succinate-co-diethylene succinate)(PBDGS) was synthesized via polycondensation of succinate acid,1,4-butanediol,and diethylene glycol. The effect of molar ratio of acid and alcohol, catalyst, and temperature on the properties of polyesters was studied using nuclear magnetic resonance (1H-NMR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). It is showed that when the molar ratio of acid and alcohol was 1.15:1, the condensation temperature was 230℃, and MBTO was used as a catalyst; the highest molecular weight of PBDGS was obtained,with weight and number-average molecular weight being 3.7×104 g/mol and 6.9×104 g/mol,respectively.

Key words: poly(butylene succinate-co-diethylene succinate), synthesis, biodegradability

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