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Preparation of silica‐filled poly(2‐hydroxymethyl methacrylate) nanocomposites cured by photoirradiation during the sol–gel process
Author(s) -
Lin DarJong,
Chen ChingChung,
Su YiChe,
Huang ShuHui,
Cheng LiaoPing
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.21097
Subject(s) - nanocomposite , thermogravimetric analysis , thermal stability , materials science , hydroxymethyl , methacrylate , chemical engineering , solvent , methyl methacrylate , scanning electron microscope , polymer chemistry , composite number , copolymer , composite material , polymer , chemistry , organic chemistry , engineering
The sol–gel process was used to prepare a photosensitive inorganic–organic composite, silica/poly(2‐hydroxymethyl methacrylate). Its nanoscale morphology was observed with field emission scanning electron microscopy at high magnifications (e.g., 160,000×). The size of the particles in the nanocomposite synthesized under various preparation conditions fell in the range of 20–50 nm. The effects of the pH, reactant composition, and solvent content in the reaction mixture on the thermal and mechanical properties of the nanocomposite were studied with thermogravimetric analysis, dynamic mechanical analysis, and thermomechanical analysis. The thermal stability of the synthesized nanocomposite could generally be improved by an increase in the molar ratio of the inorganic component, a reduction in the reaction pH, or an increase in the solvent content. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1927–1935, 2004