期刊
POLYMER
卷 47, 期 11, 页码 4036-4041出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2006.02.042
关键词
polymer hybrid; colloidal materials; sol-gel reaction
New colloidal polymer hybrids with polyoxazolines such as poly(2-methyl-2-oxazoline) (PMeOZO) and poly(2-ethyl-2-oxazoline) (PEtOZO) were obtained in an aqueous solution as a sol-gel solvent. The polyoxazoline segment was incorporated into the siliceous particle and formed strong hydrogen bonds with silanol moieties, judging from TGA and FT-IR studies. Colloidal polymer hybrids exhibited no glass transition temperature of the polyoxazoline and showed excellent thermal stability and solvent-resistant property. Porous silica obtained by charring the colloidal polymer hybrids at 600 degrees C exhibited the peak at 3.5 angstrom. These results strongly indicate the homogeneous molecular scale dispersion of polyoxazoline in the colloidal silica gel matrix. (c) 2006 Elsevier Ltd. All rights reserved.
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