Crosslinking on ageing of elastomers - II. Comparison of solvent freezing point depression and conventional crosslinking evaluation

被引：30

作者：

Baba, M ^{[1
]}

Gardette, JL ^{[1
]}

Lacoste, J ^{[1
]}

机构：

[1] Univ Blaise Pascal, Photochim Mol & Macromol Lab, CNRS, UMR 6505,ENS Chim Clermont Ferrand, F-63177 Aubiere, France

来源：

POLYMER DEGRADATION AND STABILITY | 1999年 / 65卷 / 03期

关键词：

Aging of materials - Crosslinking - Crystallization - Differential scanning calorimetry - Freezing - Gels - Monomers - Oxidation - Photolysis - Solidification - Solvents - Terpolymers;

D O I：

10.1016/S0141-3910(99)00030-0

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 crosslinking of ethylene propylene diene monomer (EPDM) resulting from photooxidation was followed by DSC. The thermograms of solvent confined in the gel at equilibrium were recorded. A decrease of the freezing point of the solvent with the irradiation rime was observed, together with a decrease of the heat of solidification of the solvent and a widening of the crystallization peak involving a modification of the size distribution of the mesh within the polymeric network. A correlation was established between the energy of solidification and the volume fraction of polymer in the gel. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：415 / 420

页数：6

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