MOLECULAR-WEIGHT DISTRIBUTION OF POLYPROPYLENES BY DYNAMIC-MECHANICAL ANALYSIS

被引：0
|
作者：
FOSTER, BW
机构：
来源：
TAPPI JOURNAL | 1993年 / 76卷 / 09期
关键词：
ADDITION POLYMERS; CHEMICAL ANALYSIS; CHROMATOGRAPHY; COPOLYMERS; DYNAMIC TESTS; MOLECULAR WEIGHT DISTRIBUTION; POLYHYDROCARBONS; POLYOLEFINS; POLYPROPYLENE; TEST METHODS;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
One of the most important factors in determining the properties of polypropylenes is their molecular-weight distribution (MWD). The most popular method for determining MWD is size-exclusion chromatography (SEC), however, SEC on polyolefins can involve a number of potential problems. In contrast, a dynamic mechanical test (DMA), when done properly alleviates these shortcomings without sacrificing a great deal of information. This paper reviews the two techniques and presents work that correlates DMA results with MWD of polypropylene homo- and copolymers.
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页码：161 / 165
页数：5
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