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Alternating copolymerization of carbon dioxide and propylene oxide catalyzed by (R,R)-SalenCo(III)-(2,4-dinitrophenoxy) and Lewis-basic cocatalyst
Niu, Yongsheng; Zhang, Wanxi; Pang, Xuan; Chen, Xuesi; Zhuang, Xiuli; Jing, Xiabin
2007-11-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume45Issue:22Pages:5050-5056
AbstractA binary catalyst system of a chiral (R,R)-SalenCo(III)(2,4-dinitrophenoxy) (salen = N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-diphenylethylenediimine) in conjunction with (4-dimethylamino)pyridine (DMAP) was developed to generate the copolymerization of carbon dioxide (CO2) and racemic propylene oxide (rac-PO). The influence of the molar ratio of catalyst components, the operating temperature, and reaction pressure on the yield as well as the molecular weight of polycarbonate were systematically investigated. High yield of turnover frequency (TOF) 501.2 h(-1) and high molecular weight of 70,400 were achieved at an appropriate combination of all variables. The structures of as-prepared products were characterized by the IR, H-1 NMR, C-13 NMR measurements. The linear carbonate linkage, highly regionselectivity and almost 100% carbonate content of the resulting polycarbonate were obtained with the help of these effective catalyst systems under facile conditions. (c) 2007 Wiley Periodicals, Inc.
KeywordCarbon Dioxide Catalyst Copolymerization Polycarbonate Salen
DOI10.1002/pola.22244
Indexed BySCI
Language英语
WOS IDWOS:000250788600003
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/121111/62374
Collection中国科学院化学研究所
Corresponding AuthorChen, Xuesi
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Jilin Univ, Coll Mat Sci & Engn, Minist Educ, Key Lab Automobile Mat, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Niu, Yongsheng,Zhang, Wanxi,Pang, Xuan,et al. Alternating copolymerization of carbon dioxide and propylene oxide catalyzed by (R,R)-SalenCo(III)-(2,4-dinitrophenoxy) and Lewis-basic cocatalyst[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2007,45(22):5050-5056.
APA Niu, Yongsheng,Zhang, Wanxi,Pang, Xuan,Chen, Xuesi,Zhuang, Xiuli,&Jing, Xiabin.(2007).Alternating copolymerization of carbon dioxide and propylene oxide catalyzed by (R,R)-SalenCo(III)-(2,4-dinitrophenoxy) and Lewis-basic cocatalyst.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,45(22),5050-5056.
MLA Niu, Yongsheng,et al."Alternating copolymerization of carbon dioxide and propylene oxide catalyzed by (R,R)-SalenCo(III)-(2,4-dinitrophenoxy) and Lewis-basic cocatalyst".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 45.22(2007):5050-5056.
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