SYNTHETIC THERMALLY REVERSIBLE GEL SYSTEMS .8. POLYVINYL CHLORIDE)-DIOXANE

被引：12

作者：

HAAS, HC ^{[1
]}

MACDONAL.RL ^{[1
]}

机构：

[1] POLAROID CORP,RES LABS,CAMBRIDGE,MA 02139

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1973年 / 11卷 / 06期

关键词：

D O I：

10.1002/pol.1973.170110601

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

When interpreted by network theory, equilibrium swelling measurements on poly(vinyl chloride) (PVC) film in dioxane and moduli measurements on the equilibrium swelled films yield values for the approximate molecular weight between thermally reversible crosslinks and for the number of these crosslinks per polymer chain. Failure to observe fusion endotherms by DTA on PVC-dibutyl phthalate gels supports the view that PVC gels have a low crystalline crosslink density and alow heat of crosslinking. The heat of crosslinking obtained by the method of Eldridge and Ferry shows only moderate agreement with expectations based on the heat of fusion of PVC and the number of repeating units per PVC chain passing through a crystalline crosslink in a PVC-dioxane gel.

引用

页码：1133 / 1140

页数：8

共 19 条

[1] CREEP BEHAVIOR OF PLASTICIZED VINYLITE VYNW [J].