摘要
利用13C-NMR、POM(偏光显微镜)、DSC(差示扫描量热仪)对自制的聚1-丁烯(i-PB)及1-丁烯与少量丙烯共聚物(B-P)的组成、微观形态和结晶性能进行了研究。实验结果表明,该共聚物为嵌段共聚物,其中丙烯摩尔分数为6.4%;B-P的球晶尺寸与i-PB的球晶尺寸基本一致,但少量丙烯的引入改变了i-PB的结晶成核和生长机理,B-P的总结晶速率明显高于i-PB,从而为B-P的应用提供了一定的理论基础。
The compositions,micro-morphology,crystalline properties of self-made poly（1-butene）（i-PB） and propylene-1-butene copolymer（B-P） were investigated by 13C-NMR,polarization optical microscope（POM） and differential scanning calorimetry（DSC）.The experiment results show that the copolymer is block polymer;the molar fraction of propylene is 6.4%.The spherulite size of B-P is about the same as that of i-PB,but the addition of a small amount of propylene changes the crystallization,nucleation and growing mechanism of i-PB.The total crystallization rate of B-P is obviously faster than that of i-PB,thus it provides some theoretical basis for the application of B-P.
出处
《化学推进剂与高分子材料》
CAS
2011年第3期90-92,共3页
Chemical Propellants & Polymeric Materials
关键词
高全同聚1-丁烯
1-丁烯-丙烯共聚物
球晶形貌
结晶动力学
high isotactic poly（1-butene）
propylene-1-butene copolymer
spherulite morphology
crystallization kinetics
