CHLORINATED HIGH-DENSITY POLYETHYLENE .2. SOLID-STATE STRUCTURE

被引:18
作者
CHANG, BH
DAI, JW
SIEGMANN, A
HILTNER, A
机构
[1] Case Western Reserve Univ,, Cleveland, OH, USA, Case Western Reserve Univ, Cleveland, OH, USA
关键词
PLASTICS - X-Ray Analysis - POLYMERS - Structure - SUSPENSIONS - X-RAYS - Diffraction;
D O I
10.1002/pen.760281807
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Chlorination of high density polyethylene results in polymers which consist of unmodified methylene units and chlorinated methylene co-units. The effect of the concentration and distribution of chlorinated units on the solid state structure has been examined by thermal, wide angle X-ray diffraction and dynamic mechanical analysis. As the substitution becomes more random, the crystallinity, crystallite size, and crystalline perfection decrease for a given chlorine content. The chlorinated units are shown to be capable of co-crystallizing, and the concentration of chlorine in the crystalline phase increases as the distribution is made more random.
引用
收藏
页码:1173 / 1181
页数:9
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