| 异氰酸酯改性聚硅氮烷的合成及性能研究 |
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| 引用本文： | 张宗波,于雪,梅雪凝,罗永明,徐彩虹. 异氰酸酯改性聚硅氮烷的合成及性能研究[J]. 有机硅材料, 2011, 0(5): 293-296 |
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| 作者姓名： | 张宗波 于雪 梅雪凝 罗永明 徐彩虹 |
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| 作者单位： | 中国科学院化学研究所; |
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| 基金项目： | 国家自然科学基金(50973113) |
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| 摘 要： | 采用甲苯二异氰酸酯( TDI)与聚硅氮烷PSN2反应,制备了异氰酸酯改性聚硅氮烷.用红外、凝胶渗透色谱及热重分析对反应产物进行了表征,比较了反应温度及原料比例对产物的结构、摩尔质量、黏度及热性能的影响.结果表明,在相同反应温度下,随着TDI用量增加,产物的摩尔质量减小,摩尔质量分布变窄,黏度增加；TDI用量相同时,产物...
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| 关 键 词： | 聚硅氮烷 甲苯二异氰酸酯 陶瓷 前驱体 |
Synthesis and Characterization of TDI Modified-Polysilazane |
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| ZHANG Zong-bo,YU Xue,MEI Xue-ning,LUO Yong-ming,XU Cai-hong. Synthesis and Characterization of TDI Modified-Polysilazane[J]. Silicone Material, 2011, 0(5): 293-296 |
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| Authors: | ZHANG Zong-bo YU Xue MEI Xue-ning LUO Yong-ming XU Cai-hong |
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| Affiliation: | ZHANG Zong-bo,YU Xue,MEI Xue-ning,LUO Yong-ming,XU Cai-hong(Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | TDI modified polysilazane was synthesized by the reaction of toluene-2,4-diisocyanate(TDI) and polysilazane(PSN2),which was then characterized by FT-IR,GPC and TGA.The influences of reaction conditions on the structure,molar mass,viscosity and thermal properties of the product were investigated.Experimental data showed that with the increase of TDI in the reaction system at the same temperature,the molar mass decreased,the molecular weight distribution narrowed and the viscosity increased.When adopting the ... |
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| Keywords: | polysilazane toluene-2 4-diisocyanate ceramics precursor |
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