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Polyimide‐Siloxane hybrid materials: Influence of coupling agents addition on microstructure and properties
Author(s) -
Schrotter J. C.,
Smaïhi M.,
Guizard C.
Publication year - 1996
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/(sici)1097-4628(19960919)61:12<2137::aid-app12>3.0.co;2-4
Subject(s) - polyimide , siloxane , thermogravimetric analysis , materials science , condensation polymer , microstructure , scanning electron microscope , chemical engineering , hybrid material , infrared spectroscopy , sol gel , polymer chemistry , composite material , polymer , organic chemistry , layer (electronics) , nanotechnology , chemistry , engineering
Polyimide‐silica hybrid materials were prepared by polycondensation, polyimidization, and sol‐gel coreactions. Several aminoalkoxysilane precursors providing a chemical bonding between the inorganic and the organic phase were used. During the synthesis, the molecular structure of the materials prepared with these precursors were followed at various steps by 29 Si‐NMR (nuclear magnetic resonance). The final materials were characterized at the macroscopic level by thermogravimetric analysis and scanning electron microscopy and at the molecular level by infrared spectrometry and 29 Si‐MAS‐NMR spectroscopy. It has been demonstrated that the properties of the organic sidegroups of the bonding agent are determinent on the properties of the final material. © 1996 John Wiley & Sons, Inc.