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Alternating Copolymerization of Carbon Dioxide and Propylene Oxide Under Bifunctional Cobalt Salen Complexes: Role of Lewis Base Substituent Covalent Bonded on Salen Ligand
Liu, Binyuan1; Gao, Yanhao1; Zhao, Xin1; Yan, Weidong1; Wang, Xianhong2
2010-01-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume48Issue:2Pages:359-365
AbstractAlternating copolymerization of propylene oxide (PO) and carbon dioxide (CO(2)) was realized under mild conditions with a moderate turnover frequency (TOF), employing sole bifunctional cobalt salen complexes containing Lewis acid metal center and covalent bonded Lewis base on the ligand. Variation of the covalent bonded Lewis base substituents on the salen ligands could tailor the catalytic activity with TOF changing from 19.3 to 34.9 h(-1), polymeric/cyclic carbonate selectivity from 95.3 to 72.8%, and the head-to-tail structure in the polymer from 72.2 to 86.0%. The IR analysis confirmed that the Lewis base moiety on one molecule could coordinate with cobalt center of adjacent molecule, playing similar role to the Salen metal complex/Lewis base binary catalytic system. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48:359-365,2010
KeywordCarbon Dioxide Catalysts Cobalt Salen Complex Copolymerization Polycarbonate Propylene Oxide
DOI10.1002/pola.23792
Indexed BySCI
Language英语
WOS IDWOS:000273581700011
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:42[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68904
Collection中国科学院化学研究所
Corresponding AuthorLiu, Binyuan
Affiliation1.Hebei Univ Technol, Inst Polymer Sci & Engn, Tianjin 300130, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Liu, Binyuan,Gao, Yanhao,Zhao, Xin,et al. Alternating Copolymerization of Carbon Dioxide and Propylene Oxide Under Bifunctional Cobalt Salen Complexes: Role of Lewis Base Substituent Covalent Bonded on Salen Ligand[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2010,48(2):359-365.
APA Liu, Binyuan,Gao, Yanhao,Zhao, Xin,Yan, Weidong,&Wang, Xianhong.(2010).Alternating Copolymerization of Carbon Dioxide and Propylene Oxide Under Bifunctional Cobalt Salen Complexes: Role of Lewis Base Substituent Covalent Bonded on Salen Ligand.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,48(2),359-365.
MLA Liu, Binyuan,et al."Alternating Copolymerization of Carbon Dioxide and Propylene Oxide Under Bifunctional Cobalt Salen Complexes: Role of Lewis Base Substituent Covalent Bonded on Salen Ligand".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48.2(2010):359-365.
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