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Cationic polymerization of diglycidyl ether of Bisphenol A. II. theory

✍ Scribed by L. Matějka; K. Dušek; P. Chabanne; J. P. Pascault

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
210 KB
Volume
35
Category
Article
ISSN
0887-624X

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✦ Synopsis

Network formation in cationic polymerization of polyepoxides was treated using a combination of kinetic theory and the statistical theory of branching processes (TBP). The complex reaction mechanism involved a degradative termination reaction affecting the molecular weight distribution of the primary chains. Moreover, formation of low-molecular-weight products, initiation, two mechanisms of propagation and transfer were taken into account.

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Polymerization of diglycidyl ether of bisphenol A/ diaminodiphenyl sulfone epoxy resins using radio frequency fields
✍ Angus Forysth; Andrew K. Whittaker 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB 👁 1 views

Curing of diglycidyl ether of bisphenol A/diaminodiphenyl sulfone (DGEBA/DDS) epoxy resin has been effected by heating with radio frequency (RF) radiation at frequencies of 30 -99 MHz. The epoxy resins can be cured rapidly at low RF power levels. Comparison of the kinetics of the RF curing with ther