Volume 47, Number 5, September I 1999
|Page(s)||568 - 574|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 September 2002|
Glass transition temperature variation, cross-linking and structure in network glasses: A stochastic approach
Laboratoire GCR-CNRS URA 769, Université Pierre et Marie Curie Tour 22, Boite 142 - 4 Place Jussieu, 75252 Paris Cedex 05, France
2 Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20-364, 01000 México DF, México
Accepted: 8 June 1999
Stochastic network description provide useful information about the link between the glass transition temperature Tg and network connectivity. In multicomponent glasses, this permits to distinguish homogeneous compositions (random network) from inhomogeneous ones (local phase separation). The stochastic origin of the Gibbs-Di Marzio equation is predicted at low connectivity and the analytical expression of its parameter emerges naturally from the calculation.
PACS: 61.20.Ne – Structure of simple liquids / 81.05.Kf – Glasses (including metallic glasses)
© EDP Sciences, 1999
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