| 低乙烯基聚丁二烯橡胶的合成和表征 |
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| 引用本文： | 林云青,李生田,张宏放,孙树海,胡振亚.低乙烯基聚丁二烯橡胶的合成和表征[J].应用化学,1983,0(1):22-27. |
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| 作者姓名： | 林云青 李生田 张宏放 孙树海 胡振亚 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 以钴催化体系为催化剂,用两步聚合法合成了1,2-链节含量范围在7—16%的低乙烯基聚了二烯橡胶。对聚合产物的表征结果表明,聚合物中存在着间同1,2-聚丁二烯的微晶,这些微晶起晶种的作用,能促进产物在低温下的结晶;当胶中1,2-链节含量小于10%时,不溶于CS2的级分较少,加入1,2-聚合催化剂后主要生成顺1,4-间同1,2-丁二烯嵌段共聚物;当1,2-链节含量高于10%时,CS2不溶物量较多,这时除上述嵌段物外尚可能生成少量间同1,2-聚了二烯均聚物。
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| 收稿时间： | 1983-04-12 |
| 修稿时间： | 1983-05-31 |
SYNTHESIS AND CHARACTERIZATION OF POLYBUTADIENE RUBBER WITH LOW VINYL STRUCTURE CONTENT |
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| Lin Yunqing,Li Shengtian,Zhang Hongfang,Sun Shuhai,Hu Zhenya.SYNTHESIS AND CHARACTERIZATION OF POLYBUTADIENE RUBBER WITH LOW VINYL STRUCTURE CONTENT[J].Chinese Journal of Applied Chemistry,1983,0(1):22-27. |
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| Authors: | Lin Yunqing Li Shengtian Zhang Hongfang Sun Shuhai Hu Zhenya |
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| Institution: | Changchun Institute of Applied Chemistry, Academia Sinica |
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| Abstract: | Cis-1,4-polybutadiene rubber with vinyl content ranging from 7 to 16% in a form of syndiotactic-1,2-polybutadiene blocks was synthesized with cobalt catalyst systems through two-stage polymerization. The po-lymer obtained has been characterized by their solubility behavior, infra-red spectrum, X-ray diffraction patterns, incipient crystallization tempera-ture and half crystallization time. |
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