| 三元巯基/乙烯基硅氮烷UV固化制备聚合物陶瓷前驱体 |
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| 引用本文： | 宋家乐,陈立新,王亚洲,王汝敏,张教强.三元巯基/乙烯基硅氮烷UV固化制备聚合物陶瓷前驱体[J].高分子材料科学与工程,2009(3):142-144,149. |
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| 作者姓名： | 宋家乐 陈立新 王亚洲 王汝敏 张教强 |
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| 作者单位： | 西北工业大学理学院教育部空间物理与化学重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(20574056);;装备预研基金(9140A12070106HK0338);;西北工业大学博士论文创新基金资助项目(CX200614) |
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| 摘 要： | 采用差光量热扫描研究了三元巯基化合物与乙烯基硅氮烷紫外光固化特性,结果表明,随着光引发剂浓度和辐照强度的增加,体系聚合速率增大,体系终止方式以自由基双基偶合终止为主。聚合反应为一级,且聚合速率与乙烯基浓度有关,而与巯基浓度无关。对制备的聚合物陶瓷前驱体的基本性能进行分析表明,玻璃化转变温度随巯基化合物用量的减少而降低,在巯基-乙烯基硅氮烷等摩尔比时,体系的固化度最大。
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| 关 键 词： | 巯基/乙烯基 紫外光固化 差光量热扫描 聚合物陶瓷前驱体 |
Preparation of Polymer Derived Ceramic Precursor of Thiol-Vinyl Silizane Cured by UV |
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| SONG Jia-le,CHEN Li-xin,WANG Ya-zhou,WANG Ru-min,ZHANG Jiao-qiang.Preparation of Polymer Derived Ceramic Precursor of Thiol-Vinyl Silizane Cured by UV[J].Polymer Materials Science & Engineering,2009(3):142-144,149. |
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| Authors: | SONG Jia-le CHEN Li-xin WANG Ya-zhou WANG Ru-min ZHANG Jiao-qiang |
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| Affiliation: | School of Science;Key Laboratory of Applied Physics and Chemistry of Ministry of Education;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | The UV curing characteristics of three functional thiol compound-vinyl silizane were investigated by differential photo-scanning calorimetry.The polymerization rate of this system increases with increasing of the concentration of photoinitiator or enhancing UV intensity,and this curing system is dominated by bimolecular radical termination.The polymerization rate is first-order overall with first-order dependence on vinyl functional group concentration and independent of thiol functional group concentration... |
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| Keywords: | thiol-ene UV curing photo-DSC polymer derived ceramic precursor |
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