高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (1): 185.

• 研究论文 • 上一篇    下一篇

热处理对聚己二酸丁二酯多晶结构和降解行为的影响

赵丽芬1,2,蒋妮1,甘志华1   

  1. 1. 中国科学院化学研究所工程塑料重点实验室, 北京 100190; 
    2. 山东科技大学材料学院, 青岛 266510
  • 收稿日期:2010-03-03 修回日期:2010-05-07 出版日期:2011-01-10 发布日期:2010-12-11
  • 通讯作者: 甘志华 E-mail:zhgan@iccas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号: 20474072, 20634050)资助.

Polymorphic Crystals from Different Thermal Treatments and Its Effect on Biodegradation Behavior of Poly(butylene adipate)

ZHAO Li-Fen1,2, JIANG Ni1, GAN Zhi-Hua1*   

  1. 1. CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
    2. College of Materials, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2010-03-03 Revised:2010-05-07 Online:2011-01-10 Published:2010-12-11
  • Contact: GAN Zhi-Hua E-mail:zhgan@iccas.ac.cn
  • Supported by:

    国家自然科学基金(批准号: 20474072, 20634050)资助.

PDF (PC)

被引次数

14

摘要： 通过熔融结晶并结合退火处理方法得到了多晶结构的聚己二酸丁二酯（PBA）以及具有不同热历史的热力学稳定的alpha晶型，采用广角X射线衍射仪（WAXD）、原子力显微镜（AFM）和差示扫描量热仪（DSC）研究了PBA的多晶结构、晶体尺寸和结晶形貌，跟踪了退火处理的PBA的生物降解行为。结果表明，分子链在相同晶格排列中围绕c轴空间取向的不同是决定多晶PBA降解速率差别的根本因素。

关键词: 聚己二酸丁二醇酯(PBA), 多晶结构, 退火处理, 生物降解

Abstract: On the basis of characteristic polymorphic crystals of poly(butylene adipate) (PBA), the PBA films with α crystal structure were prepared by two methods of melt crystallization and annealing treatment. The polymorphic crystal structure, crystal size and crystalline morphology of PBA α crystals with different thermal history were studied by wide angle X-ray diffraction (WAXD), atomic force microscope (AFM) and differential scanning calorimeter (DSC). The biodegradation behavior of PBA α crystals from different thermal treatments was investigated by following the weight loss with time. The results of this work indicated that the difference of PBA α crystals in spatial orientation of polymer chains in the same crystal lattice due to the different thermal history is the essential reason which results in the different biodegradation rates.

Key words: Poly(butylene adipate), Polymorphic crystal structures, Annealing treatment, Enzymatic biodegradation

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