Thermal, Mechanical and Rheological Properties of Eco-friendly Poly(propylene carbonate)/Poly(1,2-propylene succinate) Blends  

作　　者：Dan-dan Wu Wu Li Hong-yu Liang San-rong Liu Jian-yong Fang 张会良 Hui-xuan Zhang Li-song Dong 

机构地区：[1]Changchun University of Technology [2]Key Laboratory of Polymer Ecomaterials,Chinese Academy of Sciences,Changchun Institute of Applied Chemistry

出　　处：《Chinese Journal of Polymer Science》2014年第7期914-922,共9页高分子科学（英文版）

基　　金：financially supported by the Science&Technology Bureau of Jilin Province of China(No.20126023);the National High Technology Research and Development Program of China(863 Program)(No.2012AA062904);the National Natural Science Foundation of China(No.51021003)

摘　　要：In order to improve the flexibility of poly（propylene carbonate） （PPC）, poly（1,2-propylene succinate） （PPSu） was used to plasticize PPC in a batch mixer. The effects of PPSu on the miscibility, thermal stability, mechanical and theological properties of the blends were investigated. PPC was partially miscible with PPSu. It was demonstrated that PPSu decreased the glass transition temperature and melt viscosity of PPC, as shown in the DSC and rheological curves. With the increase in PPSu content, the PPC/PPSu blends showed decreased tensile strength, however, the elongation at break was increased to 1100% for the 70/30 PPC/PPSu blend. The introduction of PPSu provided an efficient and novel plasticization method to extend the application area of PPC.In order to improve the flexibility of poly（propylene carbonate） （PPC）, poly（1,2-propylene succinate） （PPSu） was used to plasticize PPC in a batch mixer. The effects of PPSu on the miscibility, thermal stability, mechanical and theological properties of the blends were investigated. PPC was partially miscible with PPSu. It was demonstrated that PPSu decreased the glass transition temperature and melt viscosity of PPC, as shown in the DSC and rheological curves. With the increase in PPSu content, the PPC/PPSu blends showed decreased tensile strength, however, the elongation at break was increased to 1100% for the 70/30 PPC/PPSu blend. The introduction of PPSu provided an efficient and novel plasticization method to extend the application area of PPC.

关 键 词：Biodegradable Poly（propylene carbonate） Poly（1 2-propylene succinate） MISCIBILITY Blends. 

分 类 号：O631.2[理学—高分子化学]