| 热处理对聚己二酸丁二醋多晶结构和降解行为的影响 |
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| 引用本文： | 赵丽芬,蒋妮,甘志华.热处理对聚己二酸丁二醋多晶结构和降解行为的影响[J].高等学校化学学报,2011,32(1):185-189. |
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| 作者姓名： | 赵丽芬 蒋妮 甘志华 |
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| 作者单位： | 中国科学院化学研究所工程塑料重点实验室;山东科技大学材料学院; |
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| 基金项目： | 国家自然科学基金(批准号:20474072,20634050)资助 |
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| 摘 要： | 通过熔融结晶并结合退火处理方法得到多晶结构的聚己二酸丁二酯(PBA)及具有不同热历史的热力学稳定的a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...
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| 关 键 词： | 聚己二酸丁二醇酯 多晶结构 退火处理 生物降解 |
| 收稿时间： | 2010-03-03 |
Polymorphic Crystals from Different Thermal Treatments and Its Effect on Biodegradation Behavior of Poly(butylene adipate) |
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| ZHAO Li-Fen,JIANG Ni,GAN Zhi-Hun.Polymorphic Crystals from Different Thermal Treatments and Its Effect on Biodegradation Behavior of Poly(butylene adipate)[J].Chemical Research In Chinese Universities,2011,32(1):185-189. |
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| Authors: | ZHAO Li-Fen JIANG Ni GAN Zhi-Hun |
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| Institution: | ZHAO Li-Fen1,2,JIANG Ni1,GAN Zhi-Hua1(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) |
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| 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. |
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| Keywords: | Poly(butylene adipate) Polymorphic crystal structure Annealing treatment Enzymatic biodegradation |
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