Epoxy networks based on solutions of silsesquioxanes functionalized with 3-glycidoxypropyl groups in diglycidylether of bisphenol A (DGEBA)

Citation
An. Mauri et al., Epoxy networks based on solutions of silsesquioxanes functionalized with 3-glycidoxypropyl groups in diglycidylether of bisphenol A (DGEBA), POLYM BULL, 45(6), 2001, pp. 523-530
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER BULLETIN
ISSN journal
0170-0839 → ACNP
Volume
45
Issue
6
Year of publication
2001
Pages
523 - 530
Database
ISI
SICI code
0170-0839(200101)45:6<523:ENBOSO>2.0.ZU;2-E
Abstract
In previous publications we reported the synthesis and characterization of silsesquioxanes derived from the hydrolytic condensation of (3-glycidoxypro pyl) trimethoxysilane (GPMS) using diglycidylether of bisphenol A (DGEBA) a s a solvent [1,2]. The reaction product has aliphatic epoxy groups supplied by the silsesquioxane and aromatic epoxy groups supplied by the solvent. S olutions containing 0, 25 and 50% aliphatic epoxy groups, were cured with d ifferent hardeners: methyltetrahydrophthalic anhydride (MTHPA), ethylenedia mine (EDA) and benzyldimethylamine (BDMA). Silsesquioxane-modified epoxy ne tworks showed a significant increase in the elastic modulus in the rubbery state, the abrasion resistance and the development of strain hardening in u niaxial compression tests.