1-丁烯-丙烯共聚物结构与性能研究  

Study on Structure and Properties of Poly(1-butylene-propylene)

作　　者：王军[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《化学推进剂与高分子材料》2010年第5期41-43,共3页Chemical Propellants & Polymeric Materials

基　　金：国家863计划新材料领域项目(2006AA03Z546)

摘　　要：考察了1-丁烯-丙烯共聚物(B-P)的结晶性能、力学性能和流变行为,并与高全同聚1-丁烯(i-PB)进行了结构与性能的对比。结果表明:少量丙烯的引入,破坏了1-丁烯链段的规整排列,造成结晶度降低,力学性能下降。B-P的剪切速率增加到某一临界值时,材料内部结构发生改变,1-丁烯链段和丙烯链段同时开始运动,发生了剪切变稠,共聚物黏度变大,不易成膜。The crystallization properties,mechanical properties and rheological behavior of poly（1-butylenepropylene）（B-P） were studied.The structures and properties of the B-P and high isotactic poly（1-butene）（i-PB） were compared.The results show that the isotacticity of the 1-butylene chain is broken,the crystallinity and the mechanical property decrease because of the introduction of small amount of propylene.When shear rate of the B-P reaches a certain critical value,the interior structure of the material is changed,1-butylene chain and propylene chain simultaneously begin to move,the shear and thickening occur,the viscosity of the copolymer increases and film-forming is not easy.

关 键 词：1-丁烯-丙烯共聚物 力学性能 结晶性能 流变性能 

分 类 号：O632.12[理学—高分子化学]