| 聚合温度对聚甲基丙烯酸三丁基锡酯等规度的影响(Ⅰ) |
| |
| 引用本文： | 韩哲文,黎松,朱泽进,朱清仁.聚合温度对聚甲基丙烯酸三丁基锡酯等规度的影响(Ⅰ)[J].高分子学报,1989,0(5):600-605. |
| |
| 作者姓名： | 韩哲文 黎松 朱泽进 朱清仁 |
| |
| 作者单位： | 中国科技大学材料科学与工程系，中国科技大学材料科学与工程系，中国科技大学材料科学与工程系，中国科技大学结构测试中心 合肥，合肥，合肥 |
| |
| 基金项目： | 国家自然科学基金资助课题 |
| |
| 摘 要： | 本文测定了0—130℃温度范围内,由~(60)Co-γ射线和两种活性不同的引发剂引发聚合的聚甲基丙烯酸三丁基锡酯的等规度。利用~(13)C-NMR测定聚合物分子链的等规度,如预料的那样,以间同立构为主,并随着聚合温度的升高间同立构等规度降低。作者认为影响聚合物等规度的因素主要是取代基的极性效应。计算出的控制等规度的活化能参数与聚甲基丙烯酸甲酯和聚甲基丙烯酸三甲基锡酯的属同一数量级,可相互比较。
|
| 关 键 词： | 等规度 活化能参数 聚甲基丙烯酸三丁基锡酯 ~(13)C核磁共振 |
| 收稿时间： | 1988-01-21 |
EFFECT OF POLYMERIZATION TEMPERATURE ON THE TACTICITY OF POLY (TRIBUTYL TIN METHACRYLATE) (I) |
| |
| HAN Zhe-wen,LI Song,ZHU Zhe-jin,ZHU Qing-ren.EFFECT OF POLYMERIZATION TEMPERATURE ON THE TACTICITY OF POLY (TRIBUTYL TIN METHACRYLATE) (I)[J].Acta Polymerica Sinica,1989,0(5):600-605. |
| |
| Authors: | HAN Zhe-wen LI Song ZHU Zhe-jin ZHU Qing-ren |
| |
| Institution: | Department of Material Science and Engineering; University of Science and Technology of China; Hefei |
| |
| Abstract: | A series of poly(tri-n-butyl tin methacrylate) samples have been synthesized in the range of 0° to 130℃ by the radiation initiation and in the higher temperature using initiators. The tacticity of the polymers has been measured by 13C-NMR. The results show that the polymers are all predominantly syndiotactic, as expected, and the tendency to form syndiotactic sequences decreases as the polymerization temperature increases. The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer. The activation parameters governing the tacticity are similar to those of poly(methyl methacrylate), but smaller than those of poly (trimethyl tin methacrylate). |
| |
| Keywords: | Tacticity Activation parameters Poly(tributyl tin methacrylate) 13C-NMR |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《高分子学报》浏览原始摘要信息 |
| 点击此处可从《高分子学报》下载免费的PDF全文 |
