Multi-functionalization and phase separation recycling of complex crystalline polymer systems by maroscopic orientation control

本文系统地研究了结晶/结晶聚合物共混物的相容性、结晶性和结构形成。我们发现，可生物降解的结晶共混物的生物降解速度可以通过适当的结构控制来调节。特别地，在一定条件下，我们发现了不同化学性质的结晶聚合物之间形成互穿球晶（IPS）。本论文研究的可生物降解聚合物包括聚羟基苯甲酸酯（PHB）、聚羟基苯甲酸乙脂（PHBV）、聚苯乙烯磺酸酯（PBSU）、聚醚砜（PES）、聚己内酯（PCL）、聚乳酸（PLLA）、聚碳酸酯（PEC）及其共混物，通过原子力显微镜对体系的真实的观察，证实了IPS的形成。

Systematic studies on miscibility, crystallization and structure formation of crystalline/crystalline polymer blends have been investigated. We found the speed of biodegradability of biodegradable crystalline blends can be adjusted by proper structure control. Especially, at certain condition we found the formation of interpenetrated spherulites (IPS) between chemically different crystalline polymers. The series of studies have been internationally recognized and we are aske to present akeynote lecture at PPC-8 in Bankok with the title "Structure and Properties of Bio-degradable Polymer Based Blends".The crystalline biodegradable polymers studied were PHB, PHBV, PBSU, PES, PCL, PLLA, PEC and their blends.IPS formation has been proved by real time observation of the system by atomic force microscope.