Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/41854
DC FieldValueLanguage
dc.contributor.authorHsiue, G.H.en_US
dc.contributor.author鄭如忠zh_TW
dc.contributor.authorKuo, W.J.en_US
dc.contributor.authorHuang, Y.P.en_US
dc.contributor.authorJeng, R.J.en_US
dc.date2000zh_TW
dc.date.accessioned2014-06-06T08:05:55Z-
dc.date.available2014-06-06T08:05:55Z-
dc.identifier.issn0032-3861zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/41854-
dc.description.abstractA series of organic-inorganic hybrid materials have been prepared by copolymerizing styrene and alkoxysilane-methacrylate via the sol-gel process. The alkoxysilane-containing copolymer precursors were synthesized by free-radical copolymerization of styrene with an alkoxysilane-containing monomer, methacrylic acid 3-(trimethoxysilyl)propyl ester (MAMSE), at several feeds. The copolymer precursors were then hydrolyzed and condensed to generate PS-SiO2 hybrid sol-gel materials. The hybrid copolymers possess excellent optical transparency and a nanoscale microphase separation. The copolymer precursors and their hybrid copolymers were characterized by FT-IR spectra, H-1 NMR spectra, DSC, and TGA thermograms. Chemical structural effect on the morphology and thermal properties was investigated with SEM, mapping photographs, and high-resolution solid state C-13 and Si-29 NMR spectra. It was found that compatibility between copolymer and silica mainly comes from incorporating the polymer with silica covalently. Moreover, MAMSE could be hydrolyzed to methacrylic acid and ester-interchanged to silyl methacrylate during heat treatment. This also enhances the compatibility between the copolymer and silica, The thermal properties of the PS-SiO2 hybrid copolymers are improved as silica content increase. However, the presence of silyl ester groups, which were formed during heat treatment, would reduce the thermal stability of the hybrid copolymers. (C) 2000 Elsevier Science Ltd. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationPolymeren_US
dc.relation.ispartofseriesPolymer, Volume 41, Issue 8, Page(s) 2813-2825.en_US
dc.relation.urihttp://dx.doi.org/10.1016/s0032-3861(99)00478-4en_US
dc.subjectnanocompositeen_US
dc.subjectsol-gel materialsen_US
dc.subjectmorphologyen_US
dc.subjectsol-gel processen_US
dc.subjectorganic-inorganic compositesen_US
dc.subjectnmr-spectroscopyen_US
dc.subjectsilicaen_US
dc.subjectsi-29en_US
dc.subjectmethacrylateen_US
dc.subjectdynamicsen_US
dc.subjectglassesen_US
dc.titleMicrostructural and morphological characteristics of PS-SiO2 nanocompositesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/s0032-3861(99)00478-4zh_TW
item.grantfulltextnone-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:化學工程學系所
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