High cis -1,4 polyisoprene or cis -1,4/3,4 binary polyisoprene synthesized using 2-(benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine cobalt(II) dichlorides
2013; Wiley; Volume: 62; Issue: 12 Linguagem: Inglês
10.1002/pi.4490
ISSN1097-0126
AutoresAihua He, Geng Wang, Weizhen Zhao, Xiubo Jiang, Wei Yao, Wen‐Hua Sun,
Tópico(s)Coordination Chemistry and Organometallics
ResumoPolymer InternationalVolume 62, Issue 12 p. 1758-1766 Research Article High cis-1,4 polyisoprene or cis-1,4/3,4 binary polyisoprene synthesized using 2-(benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine cobalt(II) dichlorides Aihua He, Corresponding Author Aihua He Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaCorresponding Author: Aihua He, Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. E-mail: [email protected]Wen-Hua Sun, Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, InstituteofChemistry,ChineseAcademyof Sciences, Beijing 100190, China. E-mail: [email protected]Search for more papers by this authorGeng Wang, Geng Wang Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWeizhen Zhao, Weizhen Zhao Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 ChinaSearch for more papers by this authorXiubo Jiang, Xiubo Jiang Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWei Yao, Wei Yao Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWen-Hua Sun, Corresponding Author Wen-Hua Sun Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 ChinaCorresponding Author: Aihua He, Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. E-mail: [email protected]Wen-Hua Sun, Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, InstituteofChemistry,ChineseAcademyof Sciences, Beijing 100190, China. E-mail: [email protected]Search for more papers by this author Aihua He, Corresponding Author Aihua He Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaCorresponding Author: Aihua He, Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. E-mail: [email protected]Wen-Hua Sun, Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, InstituteofChemistry,ChineseAcademyof Sciences, Beijing 100190, China. E-mail: [email protected]Search for more papers by this authorGeng Wang, Geng Wang Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWeizhen Zhao, Weizhen Zhao Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 ChinaSearch for more papers by this authorXiubo Jiang, Xiubo Jiang Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWei Yao, Wei Yao Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 ChinaSearch for more papers by this authorWen-Hua Sun, Corresponding Author Wen-Hua Sun Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 ChinaCorresponding Author: Aihua He, Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. E-mail: [email protected]Wen-Hua Sun, Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, InstituteofChemistry,ChineseAcademyof Sciences, Beijing 100190, China. E-mail: [email protected]Search for more papers by this author First published: 12 April 2013 https://doi.org/10.1002/pi.4490Citations: 14Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Polyisoprene (PI) with a high content of cis-1,4 (up to 95%) or cis-1,4/3,4 binary structures was synthesized using a cobalt system in toluene. The cobalt system, which exhibited high activities (up to 3.50 × 106 g PI (mol Co)−1 h−1), contained a series of 2-(benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine cobalt(II) dichlorides activated with ethylaluminium sesquichloride. The nature of the ligands and the reaction conditions significantly affected both the catalytic performance of the cobalt complexes as well as the structures of the resultant PI. The stereospecific polymerization of isoprene could be tuned via changing either the co-catalyst or solvent: for example, increased content of 3,4 PI (up to 36.6%) was achievable in heptane in the presence of diethylaluminium chloride. 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