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Synthesis and properties of silicon‐containing arylacetylene resins with polyhedral oligomeric silsesquioxane
Author(s) -
Zhou Yan,
Huang Farong,
Du Lei,
Liang Guozheng
Publication year - 2015
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23899
Subject(s) - hydrosilylation , silsesquioxane , materials science , differential scanning calorimetry , thermogravimetric analysis , thermosetting polymer , polymer chemistry , fourier transform infrared spectroscopy , chemical engineering , scanning electron microscope , composite material , catalysis , polymer , organic chemistry , chemistry , engineering , physics , thermodynamics
A series of silicon‐containing arylacetylene resins containing polyhedral oligomeric silsesquioxane (PS resins) were synthesized by the hydrosilylation reaction between poly(dimethylsilyleneethynylenephenyleneethynylene) (PMSEPE) and octakis(dimethylsiloxy)octasilsesquoixane ( Q 8 M 8 H ) in the presence of a platinum catalyst (Pt‐dvs). The chemical structures and properties of PS resins were characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, rheological analysis, differential scanning calorimetry, dielectric measurement, thermogravimetric analysis, and scanning electron microscopy. The results show that PS resins can be crosslinked to form thermosets at temperatures less than 260°C. With the increment ofQ 8 M 8 H , the dielectric constants of the thermosets gradually decrease from 2.91 to 2.73. The thermooxidative stabilities of PMSEPE thermosets are obviously improved with the incorporation ofQ 8 M 8 H . POLYM. ENG. SCI., 55:316–321, 2015. © 2014 Society of Plastics Engineers