STRUCTURE OF CRYSTALLINE POLYMERS PRODUCED BY RAPID COOLING OF THEIR MELTS .1. POLYETHYLENE

被引:5
作者
AITKEN, D [1 ]
CUTLER, DJ [1 ]
GLOTIN, M [1 ]
HENDRA, PJ [1 ]
CUDBY, MEA [1 ]
WILLIS, HA [1 ]
机构
[1] ICI LTD,DIV PLAST,WELWYN GARDEN CITY,HERTFORDSHIRE,ENGLAND
关键词
D O I
10.1016/0032-3861(79)90010-7
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The influence of the structure of motlen high density polyethylene on that of the crystalline material produced by rapid cooling of this melt has been investigated by Raman spectroscopy. It is shown that a relationship exists between the characteristic dimensions of a molecule in the molten phase and the length of the all trans linear sequences present in the subsequent crystalline material. The observations reported here are shown to be incompatible with the folded-chain lamellar structure often proposed for melt crystallized material; and an alternative model, in which the chains meander through neighbouring lamellae, is supported. © 1979.
引用
收藏
页码:1465 / 1469
页数:5
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