| ~(13)C-NMR研究铁系聚丁二烯(顺1,4-1,2)的链结构 |
| |
| 引用本文： | 章哲彦,周子南,马惠敏.~(13)C-NMR研究铁系聚丁二烯(顺1,4-1,2)的链结构[J].高分子学报,1982,0(3):195-201. |
| |
| 作者姓名： | 章哲彦 周子南 马惠敏 |
| |
| 作者单位： | 中国科学院长春应用化学研究所
(章哲彦，周子南)，中国科学院长春应用化学研究所(马惠敏) |
| |
| 摘 要： | 前已报道,以高活性铁催化剂可以制得性能良好的含顺-1,4-1,2结构的等二元聚丁二烯。文献已有用~(13)C-NMR研究以钴,钼催化剂合成的这种等二元聚合物的报导。本工作用~(13)C-NMR进行了研究,得到的聚合物的~(13)C-NMR图谱表明,聚合物的脂碳部分共有十一个共振峰,烯碳部分有九个峰。通过改进Furukawa的经验参数,并应用Randall的方法,这些共振峰的归属得到了令人满意的结果。确认该聚合物是双烯和单烯的无规共聚物,但偏离Bernoulli分布,趋向于一级Markov分布。
|
| 收稿时间： | 1981-05-18 |
13C-NMR STUDY ON THE EQUIBIARY POLYBUTADIENE (CIS-1,4-1,2) POLYMERIZED WITH IRON CATALYST |
| |
| Zhang Zhe-yan,Zhou Zi-nan,Ma Hui-min.13C-NMR STUDY ON THE EQUIBIARY POLYBUTADIENE (CIS-1,4-1,2) POLYMERIZED WITH IRON CATALYST[J].Acta Polymerica Sinica,1982,0(3):195-201. |
| |
| Authors: | Zhang Zhe-yan Zhou Zi-nan Ma Hui-min |
| |
| Institution: | Changchun Institute of Applied Chemistry; Aeademin Sinica |
| |
| Abstract: | The polybutadiene (cis-1, 4 and 1, 2) polymerized with iron catalyst was investigated by 18C-NMR. Assignments have been made on the spectra for all peaks of the Aliphatic and olefinic carbons using chemical shift corrective terms together with furukawa parameters. The relative intensities of peaks were calculated from the ber-noulli distribution of cis-1, 4 and 1, 2 units.Quantification of cis-1, 4 and 1, 2 contents, sequence distribution, alternation pattern of cis-1, 4 and 1, 2 units, and the chain propagation mechanism were discussed as a result of the detailed stdy of the spectra. |
| |
| Keywords: | |
| 本文献已被 CNKI 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 |
|
