Thermo-mechanical properties and structural features of diglycidyl ether of BIS phenol a cationically cured by electron beam radiation

被引：9

作者：

Ranoux, Guillaume ^{[1
]}

Molinari, Michael ^{[2
]}

Coqueret, Xavier ^{[1
]}

机构：

[1] Univ Reims, UMR 6229, Inst Chim Mol Reims, CNRS, F-51687 Reims 2, France

[2] LMEN, EA3799, F-51685 Reims 2, France

来源：

RADIATION PHYSICS AND CHEMISTRY | 2012年 / 81卷 / 09期

关键词：

Cationic polymerization; Epoxy monomers; Glass transition; Network properties; Radiation curing; AFM imaging; CROSS-LINKING POLYMERIZATION; AROMATIC DIACRYLATES; ALCOHOLS; RESINS; UV;

D O I：

10.1016/j.radphyschem.2011.12.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The thermo-mechanical properties and structural features of diglycidyl ether of bisphenol A cationically cured by electron beam radiation have been studied by FT-NIR spectroscopy, dynamic mechanical analysis (DMA), MTDSC and AFM. The influence of formulation (onium salt nature and content, presence of additives) and of EB-treatment parameters (doses, thermal treatment) on the glass transition temperature (T-g) have been investigated. The conditions for achieving a high level of conversion together with the control of the final T-g values were determined. The presence of several relaxation peaks observed by DSC and DMA analysis suggests the presence of heterogeneities in the formed network. AFM analyses reveal the presence of nanoclusters interpreted as local variations of cross-link densities in the formed network. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1297 / 1302

页数：6

共 16 条

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