摘要
聚合物共混物相容性影响其性能.加入非反应性的共聚物、反应性聚合物及低分子量化合物等可使共混物的增容,或通过熔融反应就地形成接枝共聚物.聚丙撑碳酸酯(PPC),是由二氧化碳和环氧丙烷聚合而成的新型含端羟基脂肪族聚碳酸酯,是一种粘性体,可作为 PVC 的长效增塑剂.
Poly(vinyl chloride)/poly(propylene carbonate)blends are prepared by methods of solution and melting,and are proved immiscible by DSC,but their immiscibility degrees are affected by molccular weight and blending ratio.PVC content in PPC-rich phase in solu- tion blends is calculated according to glass transition temperature(T_g).As coupling agent, NBR-PPC elastomer has a great compatibility effect on PVC/PPC blends.The amount and molecular weight of PPC influence the mechanical properties of PVC/PPC blends.
出处
《应用化学》
CAS
CSCD
北大核心
1996年第3期75-77,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
工程塑料国家重点实验室资助项目
关键词
聚氯乙烯
聚丙撑碳酸酯
偶联剂
相容性
poly(vinyl chloride)
poly(propylene carbonate)
coupling agent
compatibility
mechanical property
