| 负载钛催化体系合成聚1-丁烯的序列结构 |
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| 引用本文： | 姚薇,孟凡旭,盛海波,贺爱华,黄宝琛.负载钛催化体系合成聚1-丁烯的序列结构[J].合成橡胶工业,2002,25(6):354-356. |
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| 作者姓名： | 姚薇 孟凡旭 盛海波 贺爱华 黄宝琛 |
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| 作者单位： | 青岛科技大学,高分子材料科学与工程系,山东,青岛,266042 |
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| 摘 要： | 通过聚1－丁烯（PBt）的^13C-NMR谱图中对立体结构的实测值与Bernoulli模型计算值比较，表明该体系基本符合Bernoulli模型提出的机理，同时计算出甲苯不溶物、可溶物和空白试样BPt的全同（m）和间同（r）平均链长，并作出r和m连接的分布曲线，3个试样的间同平均链长都接近1，并且分布非常窄，而全同平均链长虽然各不相同但都较, 分布非常宽，这表明PBt的序列结构为主体嵌段结构。
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| 关 键 词： | 负载钛催化剂 聚1－丁烯 平均链长 立体结构 序列结构 |
| 文章编号： | 1000-1255(2002)06-0354-03 |
Sequence structure of polybutene-1 synthesized with supported Ti catalyst |
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| Yao Wei,Meng Fanxu,Sheng Haibo,He Aihua,Huang Baochen.Sequence structure of polybutene-1 synthesized with supported Ti catalyst[J].China Synthetic Rubber Industry,2002,25(6):354-356. |
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| Authors: | Yao Wei Meng Fanxu Sheng Haibo He Aihua Huang Baochen |
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| Abstract: | The measurements of 13C - NMR spectra showed that the mechanism of 1 - butene polymerization with supported Ti catalyst followed Bernoulli model. The average length of segnments of r and m connection of soluable, unsoluble and crude PBt was calculated . The distribution curves of r and m connection was drawn. The results showed that the average length of segnments of r connection was near to 1 and its distri-bution was very narrow, while the average length of segnments of m connection was larger relatively and its distribution was much wide. The sequence structure of PBt syntheized with supported Ti catalyst was stereo -block structure. |
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| Keywords: | supported Ti catalyst poly(1-butene) average length of segnments stereostructure sequence structure |
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