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Preparation and characterization of organic–inorganic hybrid composites based on multiepoxy silsesquioxane and cyanate resin
Author(s) -
Lu Tingli,
Liang Guozheng,
Guo Zhian
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22743
Subject(s) - silsesquioxane , cyanate ester , materials science , cyanate , polymer chemistry , thermal stability , condensation polymer , monomer , acrylonitrile , tetraethyl orthosilicate , solvent , chemical engineering , polymer , composite material , chemistry , organic chemistry , copolymer , epoxy , engineering , nanotechnology
A multiepoxy cubic silsesquioxane was prepared by the hydrolysis and polycondensation of trifunctional monomer (γ‐glycidoxypropyl)trimethoxysilane in a solvent mixture of methyl isobutyl ketone and anhydrous ethanol with a tetraethyl ammonium hydroxide aqueous solution acting as the catalyst, and it was successfully introduced into a cyanate resin and formed highly crosslinked organic–inorganic hybrid composites on a molecular level via a mutual cure reaction. The properties of the multiepoxy cubic silsesquioxane/bisphenol A dicyanate ester resin composites were investigated, and the results showed that introducing the cubic silsesquioxane unit into the cyanate resin successfully modified the local structure of the molecule, made the chain more rigid, restricted the chain mobility, and eventually improved the thermal stability and flame retardancy of the resin. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3652–3658, 2006