Crystallization and morphology of propylene pentene random copolymers

被引：0
|
作者：
Juhász, P [1 ]
Belina, K [1 ]
机构：
[1] Tech Univ Budapest, Dept Plast & Rubber Technol, H-1521 Budapest, Hungary
来源：
ANTEC '99: PLASTICS BRIDGING THE MILLENNIA, CONFERENCE PROCEEDINGS, VOLS I-III: VOL I: PROCESSING; VOL II: MATERIALS; VOL III: SPECIAL AREAS; | 1999年
关键词：
propylene pentene copolymers; crystallization; gamma form; equilibrium melting point;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Crystallization and melting behavior of propylene/1-pentene random copolymers were studied. WAXD and d.s.c. measurements of isothermal crystallized samples confirm that the copolymers contain the gamma crystal form in large quantity. The content of gamma form increases with increasing pentene content and crystallization temperature. We found a limitation in the relative gamma content around 60-65%. The efficiency of pentene comonomer is much higher than of ethylene. The equilibrium melting point decreases with pentene content in a non-linear fashion, and the values are much lower than the theoretical ones.
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收藏
页码：3806 / 3810
页数：5
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