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Synthesis and characterization of ladder‐like phenylene‐bridged polysiloxanes
Author(s) -
Cao Xinyu,
Wang Letian,
Li Bo,
Zhang Rongben
Publication year - 1997
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199711)8:11<657::aid-pat697>3.0.co;2-j
Subject(s) - differential scanning calorimetry , gel permeation chromatography , phenylene , materials science , condensation polymer , polymer chemistry , characterization (materials science) , molecule , hydrolysis , infrared spectroscopy , poly(p phenylene) , hydrosilylation , chemical engineering , organic chemistry , polymer , chemistry , composite material , nanotechnology , catalysis , physics , thermodynamics , engineering
Soluble ladder‐like phenylene‐bridged polymethylsiloxane and polyvinylsiloxane were synthesized by precoupling, hydrolysis and polycondensation consecutively. They were characterized by infrared, 1 H‐NMR (nuclear magnetic resonance), 13 C‐NMR, 29 Si‐NMR, differential scanning calorimetry, X‐ray diffraction, elementary analysis, viscosity and gel permeation chromatography measurement, etc., and proved to possess a ladder‐like molecule structure. © 1997 John Wiley & Sons, Ltd.