聚β-羟基丁酸酯/超高分子量聚氧化乙烯共混体系相容性和结晶行为  

MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF\=POLY(\|HYDROXYBUTYRATE)/POLY(ETHYLENE OXIDE) BLENDS

作　　者：李荣群[1,2] 安玉贤[1,2] 庄宇钢[1,2] 董丽松 滕凤恩[1,2] 冯之榴 

机构地区：[1]中国科学院长春应用化学研究所高分子物理开放实验室 [2]吉林大学材料科学与工程学系

出　　处：《高分子学报》1999年第4期498-501,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金

摘　　要：为了解决废弃塑料引起的“白色污染”问题，世界各国竞相研制开发可生物降解高分子材料，其中，有关聚β羟基丁酸酯［ｐｏｌｙ（βｈｙｄｒｏｘｙｂｕｔｙｒａｔｅ）（ＰＨＢ）］的研究尤其活跃．然而，由于商品价格较高，材料本身抗冲击性能较差、加工窗口较窄等限制...The miscibility and crystallization behavior of poly(hydroxybutyrate)(PHB)/poly(ethylene oxide)(PEO)blends were studied by differential scanning calorimetry(DSC) and polarizing microscopy (POM).It is found that the miscibility is related to the composition of the blends.When the PEO content is over 20 percent,the miscible blends turn into partially miscible and the phase separation can be observed with POM.The addition of the PEO influences not only the morphology of PHB crystals and the radial growth rate of spherulites,but also the cold crystallization temperature.\=

关 键 词：聚羟基丁酸酯 PHB PEO 共混物 

分 类 号：O633.11[理学—高分子化学] O633.14[理学—化学]