SYNTHESIS OF HIGH THERMOSTABLE SILICONE GELS CONSTRUCTED WITH LADDERLIKE POLYSILSESQUIOXANES* |
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| Authors: | Huai-zhong Pan Ming Cao Jian-hua Luo Ping Xie Rong-ben Zhang Yu-hui Lin Neal Tai-sheng Chung |
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| Institution: | Center for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100080; China Institute of Materials Research and Engineering; Singapore 117602; Singapore |
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| Abstract: | Heat-resistant silicone gels were synthesized by replacing the single main chain polymethylhydrosiloxane withreactive ladderlike polyhydrosilsesquioxane copolymers. Because of the interaction between polydimethylsiloxane chainsand the ladderlike polysilsesquioxanes chains, the cyclization of the polydimethylsiloxane chains is hindered. The highthermal stability of the ladderlike polymers can improve the thermal stability of the silicone gels without sacrificing their good comprehensive properties. |
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| Keywords: | Heat-resistant Silicone gels Ladderlike polysilsesquioxane Interaction |
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