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Synthesis and thermal behavior of polymeric precursor for carbon‐free silicon oxynitride ceramic
Author(s) -
Zhang Zongbo,
Wang Rui,
Wang Xiujun,
Chen Li,
Zhang Dahai,
Luo Yongming,
Xu Caihong
Publication year - 2011
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.34577
Subject(s) - ceramic , pyrolysis , silicon oxynitride , silicon , hydrolysis , materials science , polymer , chemical engineering , polymer chemistry , carbon fibers , organic chemistry , chemistry , composite material , silicon nitride , composite number , engineering , metallurgy
A new polymeric precursor, perhydropolysiloxazane (PSNO), for silicon oxynitride (SiON) ceramic was synthesized by a simple one‐pot procedure involving partial hydrolysis of H 2 SiCl 2 and the following ammonolysis reaction of the hydrolyzed intermediates with NH 3 . The structure of new polymer was characterized with perhydropolysiloxane (PHSO) and perhydropolysilazane (PHSN) as reference substances. The conversion of PSNO to ceramic was investigated by TGA, FT‐IR, and solid 29 Si‐NMR analyses. A Si‐rich Si 2 N 2 O ceramic was produced upon pyrolysis of PSNO at 1400°C under N 2 atmosphere. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011