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Type: Artigo de periódico
Title: Synthesis and structure of crosslinked poly[(methylsiloxane)-co-(oxymethylene)] copolymers
Author: RodriguezBaeza, M
Zapata, M
Yoshida, IVP
Abstract: A series of new crosslinked copolymers was obtained by cationic ring-opening copolymerization of 1,3,5,7-tetramethylcpclotetrasiloxane and 1,3,5-trioxane. Theqoly[(methylsiloxane)-co-(oxyme thylene)] copolymers are white crystals or glassy. Crosslinking reactions take place in the reaction medium. The degree of crosslinking increases with a higher concentration of the methylsiloxane units in the copolymers. The combination of solid-state magic-angle spinning nuclear magnetic resonance of Si-29 and C-13 and Fourier-transform infrared spectroscopy provided a quantitative description of the copolymer microstructure.
Country: EUA
Editor: Wiley-blackwell
Rights: fechado
Identifier DOI: 10.1002/marc.1997.030180818
Date Issue: 1997
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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