請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/41896
標題: Functionalization of silica nanoparticles with 4-isocyanato-4 '-(3,3 '-dimethyl-2,4-dioxo-azetidino)diphenyl methane, surface chemical reactivity and nanohybrid preparation
作者: Liu, Y.L.
鄭如忠
Wu, Y.H.
Jeng, R.J.
Dai, S.A.
戴憲弘
關鍵字: Silica nanoparticle
Surface modification
Nanohybricls
Nanomaterials
transfer radical polymerization
hollow nanospheres
carbon nanotubes
gas separation
cancer-cells
membranes
期刊/報告no:: Journal of Colloid and Interface Science, Volume 336, Issue 1, Page(s) 189-194.
摘要: This paper reports a facile approach to functionalize silica nanoparticle (SNP) surfaces, using 4-isocyanato-4'-(3,3'-dimethyl-2,4-dioxo-azetidino)diphenyl methane (MIA) as a reaction agent. Incorporation of MIA onto SNP surfaces is demonstrated with infrared spectrometry, (1)H NMR, and thermal analysis. The amounts of MIA moieties bonded to SNP surfaces are adjustable with the MIA contents in reaction systems. This modification approach brings azetidine-2,4-dione groups, which are selectively reactive toward primary amines, to SNP surfaces and the result is that the MIA-modified SNPs are effective and divergent intermediates for preparation of SNP-based nanohybrid materials. Consequently, SNP-cored polystyrene star polymers and SNP-polyhedral oligomeric silsesquioxane (POSS) nanohybrids are prepared with reaction of MIA-modified SNPs with amine-functionalized agents, demonstrating the applications of MIA-modified SNP particles in nanomaterial preparations. (C) 2009 Elsevier Inc. All rights reserved.
URI: http://hdl.handle.net/11455/41896
ISSN: 0021-9797
文章連結: http://dx.doi.org/10.1016/j.jcis.2009.03.024
顯示於類別:化學工程學系所

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