多组分聚合物的物理化学 Lecture 1.pptVIP

多组分聚合物物理化学 陈道勇 复旦大学高分子科学系 主要内容 背景介绍 聚合物－聚合物共混过程的热力学 聚合物－聚合物共混过程的动力学 聚合物共混体系相结构的表征方法 聚合物的增强与增韧 聚合物的界面与改性 纳米尺度内聚合物的相分离－嵌段共聚物的相分离 嵌段共聚物在溶液中的自组装 各向异性粒子的制备与粒子组装 课时安排及考试方式 授课11周 同学报告及讨论4周 内容：聚合物共混改性以及聚合物共混的热力学、动力学和相结构分 析表征的必威体育精装版进展 每个同学报告10分钟，讨论5分钟 2周时间用于写课程综述 考试方式：写综述；要求综合3（硕士）或5 （博士）篇以上具有代表性文献，对内容进行总结，并能作出评论。 References 江明 “高分子合金的物理化学”， 1981 Olabishi, Robeson, Shaw “Polymer-Polymer Miscibility” 1984, 有中译本 J. A. Mason L. Sperling “Polymer Blends and Composites” 有中译本，1983 金日光等译，“塑料合金”， 1990 L. Sperling “Polymeric Multicomponent Materials”, 1998 吴培熙，张留成 “聚合物共混改性” 1992 江明等“大分子自组装”2006 聚合物发展的三条路径 发展新的聚合物种类 共聚物的合成 聚合物共混（聚合物/聚合物共混；聚合物/无机物复合） 决定均聚物性质的因素 1. Flexibility of polymer chains: transient knots or entanglement in bulk or at high concentrations; 2. Enthalpy depending on the kind of monomer used; PS: rigid transparent solid that transformed into a viscous liquid above 100 0C, whereas PB: a viscous liquid at room temperature 3. Small permanent linkage: cross-linking transform PB into rubber or Rigid crystalline region forming physical crosslinking between rubbery amorphous region Properties of each components The composition, lengths and architecture of chain segments, the distribution of each segments Microphase separation in grafted and block copolymer systems. Several features of multicomponent systems: Very few instances of complete miscibility between different polymers have been readily exploited to prepare superior plastics through blending （without specific interaction between the components）. Noryl, PPO + PS, Combination of heat resistance, dimension stability and ductility of former with the low cost and fluidity of the latter. Miscible In most cases, kinetically frozen or modified microphase separated polymer blends with temporary stability. Nanophase separation realized by block copolymers and graft copolymers 聚合物共混物发展的历史 1978 PC/PBT，PC/PET “Xeroy”工程塑料之结合 1980 PBT/Elastomer “Celanex” 1981 PPE/Pol