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Sol–gel synthesis and characterization of polyimides based on the reaction of butane‐1,2,3,4‐tetracarboxylic acid with 3‐aminopropyltriethoxysilane
Author(s) -
Schramm Christian,
Rinderer Beate,
Tessadri Richard
Publication year - 2012
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.36285
Subject(s) - thermogravimetric analysis , butane , hydrolysis , fourier transform infrared spectroscopy , materials science , molar ratio , polyimide , polymer chemistry , characterization (materials science) , chemical engineering , nuclear chemistry , chemistry , organic chemistry , catalysis , composite material , nanotechnology , layer (electronics) , engineering
Butane‐1,2,3,4‐tetracarboxylic acid is reacted with hydrolyzed 3‐aminopropyltriethoxysilane (APTES) at 110 and 220°C (molar ratios 1 : 1 and 1 : 2). The as‐prepared materials were characterized by means of various analytical methods. FTIR measurements revealed the formation of a polyamic acid at 110°C whereas the treatment at 220°C resulted in the preparation of a polyimide. These findings were confirmed by means of SS‐ 13 C‐MAS‐NMR. XRPD experiments gave clear evidence for the formation of a specific periodic arrangement in the material. Thermogravimetric analysis indicated that the organic–inorganic material has improved thermal properties. All the materials obtained were insoluble in water and organic solvents. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012