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Anisotropy in Hybrid Materials: An Alternative Tool for Characterization

Published online by Cambridge University Press:  10 February 2011

V. Dessolle ,
E. Lafontaine ,
J. P. Bayle  and
P. Judeinstein
V. Dessolle
Affiliation:
Laboratoire de Chimie Structurale Organique (URA 1384), Université Paris Sud, Bât. 410, 91405 Orsay - France
E. Lafontaine
Affiliation:
DGA/CREA 16, Bis Avenue Prieur de la Côte d'Or 91414 Arcueil Cedex - France.
J. P. Bayle
Affiliation:
Laboratoire de Chimie Structurale Organique (URA 1384), Université Paris Sud, Bât. 410, 91405 Orsay - France
P. Judeinstein
Affiliation:
Laboratoire de Chimie Structurale Organique (URA 1384), Université Paris Sud, Bât. 410, 91405 Orsay - France
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Abstract

Hybrid materials presenting mechanical rubbery properties are prepared from silicon alkoxides modified by organic polymers [i.e. poly(propyleneoxide), poly(ethyleneoxide), poly(butadiene) of moderate molecular weight (MW ≈ 3000–4000)]. These materials were characterized by 29Si NMR. They can be swollen by deuterated probes which can be used with 2H NMR to follow the network structure. Under unidirectionnal mechanical strain, uniaxial anisotropy of the samples is obtained and the macroscopic ordering is evidenced by quadrupolar deuterium NMR of swelling probe.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 475
Copyright
Copyright © Materials Research Society 1996

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