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Biodegradable and biocompatible inorganic-organic hybrid materials. 2. Dynamic mechanical properties, structure and morphology
Tian, Dong; Blacher, Silvia; Dubois, Philippe et al.
1998In Polymer, 39 (4), p. 855-864
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Keywords :
sol-gel
Abstract :
[en] Dynamic mechanical properties, structure and morphology of tetraethoxysilane/poly(ε-caprolactone) (TEOS/ PCL) hybrid materials have been analysed by dynamic mechanical spectroscopy, small-angle X-ray scattering, transmission electron microscopy, and image analysis. The experimental observations agree with a microscopic phase separation of the two constitutive components: the organic polymer and the silica network. The effect of the PCL functional end-groups, the number of functional end-groups per PCL chain, the PCL molecular weight and content, and the curing conditions have been studied on the structure and properties of the hybrid materials. Finally, phase morphology has proved to be co-continuous, at least when the weight composition is close to 50% for each component (SiO2 and PCL), with a characteristic length between the PCL and silica phases of ca. 5 nm, as estimated by image analysis of transmission electron micrographs.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Tian, Dong;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Blacher, Silvia ;  Université de Liège - ULiège > Department of Applied Chemistry > Laboratory of Chemical Engineering
Dubois, Philippe ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemisty > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Biodegradable and biocompatible inorganic-organic hybrid materials. 2. Dynamic mechanical properties, structure and morphology
Publication date :
February 1998
Journal title :
Polymer
ISSN :
0032-3861
eISSN :
1873-2291
Publisher :
Elsevier Sci Ltd, Oxford, United Kingdom
Volume :
39
Issue :
4
Pages :
855-864
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Commentary :
The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.
Available on ORBi :
since 23 June 2009

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