RELATIONSHIPS BETWEEN GLASS-TRANSITION TEMPERATURE AND CONVERSION - ANALYSES OF LIMITING CASES

被引:44
作者
PASCAULT, JP [1 ]
WILLIAMS, RJJ [1 ]
机构
[1] UNIV MAR DEL PLATA,NATL RES COUNCIL,INST MAT SCI & TECHNOL,RA-7600 MAR DEL PLATA,ARGENTINA
关键词
D O I
10.1007/BF00298330
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 Couchman approach to the expression of the compositional variation of glass transition temperature (or the Di-Benedetto equation) can be used to evaluate the effect of molecular weight on Tg for a stepwise linear polymer. An expression for the KL constant in the Fox-Flory equation is proposed. It is also possible to estimate the TgL corresponding to the hypothetical linear structure defined in a three-dimensional network. For different epoxy-diamine systems, we have found a good concordance with the results obtained previously using an additive law. © 1990 Springer-Verlag.
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收藏
页码:115 / 121
页数:7
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