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Improvement of the surface properties of polycarbonate by organic–inorganic hybrid coatings
Author(s) -
Fabbri Paola,
Leonelli Cristina,
Messori Massimo,
Pilati Francesco,
Toselli Maurizio,
Veronesi Paolo,
MorlatThérias Sandrine,
Rivaton Agnès,
Gardette Jean Luc
Publication year - 2008
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.27765
Subject(s) - polycarbonate , materials science , scratch , polymer , photodegradation , microwave , chemical engineering , microwave irradiation , polymer chemistry , composite material , catalysis , photocatalysis , organic chemistry , chemistry , physics , quantum mechanics , engineering
Organic–inorganic hybrids (ceramers) were prepared through the sol–gel process with opportune alkoxysilane‐terminated polymer chains as the organic phase and tetraethoxysilane as the inorganic network precursor. The consolidation process, used to reach a high degree of crosslinking between the two phases, was carried out with either conventional oven heating or microwave irradiation. High conversion degrees were obtained with both treatments even when microwave postcuring turned out to be much faster than conventional heating(5–10 s vs 40 min). Scratch‐test and photooxidation investigations showed a significant improvement in scratch, yellowing, and photodegradation resistance for coated polycarbonate. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008