Journal
POLYMER ENGINEERING AND SCIENCE
Volume 55, Issue 2, Pages 316-321Publisher
WILEY-BLACKWELL
DOI: 10.1002/pen.23899
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Funding
- Shanghai Leading Academic Discipline Project [B502]
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application (Soochow University)
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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 (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 degrees C. With the inc, 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 of . POLYM. ENG. SCI., 55:316-321, 2015. (c) 2014 Society of Plastics Engineers
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