標題: Characterization of poly(vinyl pyrrolidone-co-isobutylstyryl polyhedral oligomeric silsesquioxane) nanocomposites
作者: Xu, HY
Kuo, SW
Huang, CF
Chang, FC
應用化學系
Department of Applied Chemistry
關鍵字: glass transition;hybrid materials;nanocomposites;poly(vinylpyrrolidone);polysiloxanes
公開日期: 15-Feb-2004
摘要: Poly(vinyl pyrrolidone-co-isobutyl styryl polyhedral oligomeric silsesquioxane)s (PVP-POSS) were synthesized by one-step polymerization and characterized 13 using FTIR, high-resolution H-1-NMR, solid-state C-13-NMR, Si-29-NMR, GPC, and DSC. The POSS content can be controlled by varying the POSS feed ratio. The T-g of the PVP-FOSS hybrid is influenced by three main factors: (1) a diluent role of the POSS in reducing the self-association of the PVP; (2) a strong interaction between the POSS siloxane and the PVP carbonyl, and (3) physical aggregation of nanosized POSS. At a relatively low FOSS content, the role as diluent dominates, resulting in a decrease in T-g. At a relatively high POSS content, the last two factors dominate and result in T-g increase of the PVP-POSS hybrid. (C) 2003 Wiley Periodicals, Inc.
URI: http://dx.doi.org/10.1002/app.13346
http://hdl.handle.net/11536/27026
ISSN: 0021-8995
DOI: 10.1002/app.13346
期刊: JOURNAL OF APPLIED POLYMER SCIENCE
Volume: 91
Issue: 4
起始頁: 2208
結束頁: 2215
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