| 梯形苯基/甲基聚倍半硅氧烷树脂的合成及热稳定性研究 |
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| 引用本文： | 王大喜,邢彦岭,沈新春,栗秀刚,徐春明.梯形苯基/甲基聚倍半硅氧烷树脂的合成及热稳定性研究[J].合成化学,2009,17(6). |
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| 作者姓名： | 王大喜 邢彦岭 沈新春 栗秀刚 徐春明 |
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| 作者单位： | 1. 中国石油大学(北京)重质油国家重点实验室,北京,102249
2. 中海油能源发展股份有限公司,石化分公司,广东,惠州,516086 |
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| 基金项目： | 中国石油大学(北京)重质油国家重点实验室资助项目 |
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| 摘 要： | 以苯基三氯硅烷和甲基三氯硅烷为主要原料,以不同摩尔比(1:1,2:1,3:1)合成了三种梯形聚苯基/聚甲基倍半硅氧烷树脂(1～3),其结构经UV和IR表征.热重分析发现,1～3的热分解温度分别为470 ℃,517 ℃和540 ℃,说明随着苯基三氯硅烷与甲基三氯硅烷摩尔比增大,热稳定性增加.用量子化学方法计算发现苯基硅氧烷的C-Si键长比甲基硅氧烷C-Si键短,且更牢固.
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| 关 键 词： | 苯基三氯硅烷 甲基三氯硅烷 倍半硅氧烷树脂 热稳定性 量子化学 合成 |
Synthesis and Thermo-Stability Study of Ladderlike Phenyl/Methyl Silsesquioxane Resin |
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| WANF Da-xi,XING Yan-ling,SHEN Xin-chun,LI Xiu-gang,XU Chun-ming.Synthesis and Thermo-Stability Study of Ladderlike Phenyl/Methyl Silsesquioxane Resin[J].Chinese Journal of Synthetic Chemistry,2009,17(6). |
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| Authors: | WANF Da-xi XING Yan-ling SHEN Xin-chun LI Xiu-gang XU Chun-ming |
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| Abstract: | Three ladderlike polyphenyl/methyl silsesquioxane resins(1～3) were synthesized from methyltrichlorosilicane and phenyltrichlorosilicane with different ratios of 1 :1, 2 :1 and 3 :1, respectively. The structures were characterized by UV and IR. The thermal decomposition temperatures of 1～3 are 470 ℃, 517 ℃ and 540 ℃, respectively by DTG. The thermal stability of the polymer increased with the increase of mole ratio of phenyltrichlorosilicane to methyltrichlorosilicane. It is found by quantum chemistry calculation that the C-Si bond length of phenyl silicone is shorter and firmer than that of methyl silicone. |
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| Keywords: | phenyltrichlorosilicane methyltrichlorosilicane silsesquioxane resin thermal stability quantum chemistry synthesis |
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