高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

1,4-环己烷二甲醇对可生物降解聚酯PBS的共聚改性

张敏1,2, 来水利1, 宋洁1, 邱建辉3   

    1. 陕西科技大学化学与化工学院, 西安 710021;
    2. 西安建筑科技大学环境与市政工程学院, 西安 710055;
    3. 日本秋田县立大学系统科学技术学部, 秋田 015-0055
  • 收稿日期:2008-01-19 修回日期:1900-01-01 出版日期:2008-06-10 发布日期:2008-06-10
  • 通讯作者: 张敏

Copolymerization and Modification of Biodegradable Poly(butylene succinate) by 1,4-CHDM

ZHANG Min1,2*, LAI Shui-Li1, SONG Jie1, QIU Jian-Hui3   

    1. College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China;
    2. College of Environment and Municipal Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China;
    3. Department of Machine Intelligence and System Engineering, Akita Prefecture University, Akita, 015-0055, Japan
  • Received:2008-01-19 Revised:1900-01-01 Online:2008-06-10 Published:2008-06-10
  • Contact: ZHANG Min

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被引次数

63

摘要： 在可生物降解聚酯PBS的分子主链中引入具有立体构型的1,4-环己烷二甲醇(CHDM), 对PBS进行了共聚改性. 研究结果表明, 反应时间在2 h内能够得到数均分子量100000以上的P(BS-co-CHDM)共聚物, 随着1,4-CHDM添加量的增加, 共聚物的结晶度降低, 玻璃化转变温度(Tg)呈上升趋势, 当添加量增大时, 共聚物tanδ随之增大, 内耗峰宽逐渐变窄, 当1,4-CHDM添加量为30%时, 断裂伸长率达到1232%. 所有共聚物的热分解温度均在300 ℃以上, 具有良好的热稳定性.

关键词: 聚丁二酸丁二酯, 立体构型, 1,4-环己烷二甲醇, 共聚物, 热稳定性

Abstract: Biodegradable poly(butylene-succinate)(PBS) was modified by intoducing 1,4-cyclohexanedimethylene(CHDM) with a stereo structure into the main chain. The results show that a copolymer with a high molecular weight Mn more than 100000 was obtained in 2 h. When 1,4-CHDM increased, the crystallinity decreased but Tg and tanδ increased and the internal friction peak width changed narrow gradually. The 1,4-CHDM content was 30%, the elongation ratio would reach 1232%. All the decomposition temperature of the polymer was above 300 ℃, with a good thermal stability.

Key words: Poly(butylene-succinate), Stereo-structure, 1,4-CHDM, Copolymer, Thermal stability

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