| ~(13)C-NMR研究聚丁二烯长支链支化 |
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| 引用本文： | 赵芳儒,苏会文,苏邦瑛,张水珍,王昌瑾.~(13)C-NMR研究聚丁二烯长支链支化[J].高分子学报,1982,0(3):225-230. |
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| 作者姓名： | 赵芳儒 苏会文 苏邦瑛 张水珍 王昌瑾 |
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| 作者单位： | 中国科学院化学研究所
(赵芳儒)，燕山石油化学总公司研究院
(苏会文)，中国科学院感光化学研究所
(苏邦瑛，张水珍)，中国科学院感光化学研究所(王昌瑾) |
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| 摘 要： | 本文研究了用不同催化体系制备的聚丁二烯和加氢的聚丁二烯的~(13)C-NMR谱图。结合GPC测定支化度的数据,提出了二种可能的支化结构。以Ni及Co催化体系聚合的试样,支化点可能位于顺-1,4主链双键的α-次甲基上;而由Ni+Mo催化体系聚合的试样,可能为1,2-乙烯基的双键打开接长支链。
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| 收稿时间： | 1981-06-11 |
STUDY OF LONG-CHAIN BRANCHING IN POLYBUTADIENE BY 13C-NMR SPECTROMETRY |
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| Zhao Fang-ru,Su Hui-wen,Su Bang-ying,Zhang Shui-zhen,Wang Chang-jing.STUDY OF LONG-CHAIN BRANCHING IN POLYBUTADIENE BY 13C-NMR SPECTROMETRY[J].Acta Polymerica Sinica,1982,0(3):225-230. |
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| Authors: | Zhao Fang-ru Su Hui-wen Su Bang-ying Zhang Shui-zhen Wang Chang-jing |
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| Institution: | Institute of Chemistry; Academia Sinica; Yanshan Petroleum Chemical Company; Institute of Photographic Chemistry; Academia Sinica |
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| Abstract: | The long chain branching in polybutadienes and their hydrogenated samples were studied by 13C-NME spectrometry.Two kinds of branching structures are suggested. For samples polymerized from Ni and Co catalysts systems the branching point is on the a-methylene group of the Cis-1,4 double bond. For samples polymerized from Ni+Mo catalysts systems, branching point is formed through the opening of the double bond of 1,2 vinyl group. |
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