Ethynyl aromatic siliconhybridized resin: Synthesis,characterizations, and thermal properties |
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Authors: | Ming Yang Song Shi Mingcun Wang Yuhui Wang Zhenhua Luo Zhihai Feng Tong Zhao |
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Affiliation: | 1. Laboratory of Advanced Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China;3. National Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, People's Republic of China |
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Abstract: | A novel silicon‐containing resin (ESA resin) was successfully synthesized by the condensation reaction of lithium arylacetylide with chlorosilane in high yields. The resin was characterized by the techniques of FTIR, 1H‐NMR, 29Si‐NMR, and gel permeation chromatography. Thermal cure process was monitored by DSC and FTIR methods. This resin could melt at around 100°C and thermally cured at 200–250°C with low exothermal enthalpy. Owing to the high aryl groups containing and the complete crosslinking of ethynyl groups, the cured ESA resin exhibited excellent thermal stability and high char yield. The decomposition temperature $T_{d_5}$ of the cured resin was at 510°C, and the residue yield at 900°C was 82.9% in N2. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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Keywords: | ethynyl aromatic silicones thermosets thermal properties |
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