| Tailoring Molecular Weight of Bioderived Polycarbonates via Bifunctional Ionic Liquids Catalysts under Metal-Free Conditions | |
| Ma, Congkai1,2,3; Xu, Fei1; Cheng, Weiguo1; Tan, Xin1,3; Su, Qian1,3; Zhang, Suojiang1,3 | |
| 2018-02-01 | |
| Source Publication | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| ISSN | 2168-0485 |
| Volume | 6Issue:2Pages:2684-2693 |
| Abstract | Synthesis of bioderived high-molecular-weight polycarbonates over metal-free catalysts is of great importance but also challenging. In this work, a series of 1-butyl-3-methylimidazolium (Bmim) ionic liquids (ILs) were prepared as catalysts for a melt polycondensation reaction of isosorbide and diphenyl carbonate. By modifying the structures of ILs' anions, the number-average molecular weight (M-n) of poly(isosorbide carbonate) (PIC) was effectively tailored. In the presence of a trace amount (0.05 mol % based on isosorbide) of bifunctional [Bmim][CH3CHOHCOO], the synthesized PIC possessed high M-n of 61,700 g/mol and a glass transition temperature of 174 degrees C, both the highest so far to the best of our knowledge. Besides, it was found that the anions with stronger electronegativity and hydrogen bond formation ability were more efficient for the formation of PIC with higher M-n. To modify the flexibility of PIC, poly(aliphatic diol-co-isosorbide carbonate)s with M-n ranging from 34,000 to 75,700 g/mol were also formulated by incorporating with various aliphatic diols. Additionally, based on the experimental results and nuclear magnetic resonance spectroscopy, a possible mechanism of cooperative nucleophilic-electrophilic activation through hydrogen bond formation and electrostatic interactions by the ILs catalyst was proposed. |
| Keyword | Bioderived Polycarbonate Bifunctional Ionic Liquids Catalysis Hydrogen Bond |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1021/acssuschemeng.7b04284 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ALIPHATIC POLYCARBONATES ; MELT POLYCONDENSATION ; DIMETHYL CARBONATE ; CYCLIC CARBONATES ; ETHYLENE-GLYCOL ; ISOSORBIDE ; TRANSESTERIFICATION ; POLYMERIZATION ; POLYESTERS ; SOLVENTS |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Engineering |
| WOS Subject | Chemistry, Multidisciplinary ; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China(21676274 ; National Key R&D Program of China(2016YFB0600903) ; 21506226) |
| WOS ID | WOS:000424728300126 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/24020 |
| Collection | 多相复杂系统国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn,Key Lab Green Proc & Engn, 1 North Second St, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, 380 Huaibeizhuang, Beijing 101408, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ma, Congkai,Xu, Fei,Cheng, Weiguo,et al. Tailoring Molecular Weight of Bioderived Polycarbonates via Bifunctional Ionic Liquids Catalysts under Metal-Free Conditions[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(2):2684-2693. |
| APA | Ma, Congkai,Xu, Fei,Cheng, Weiguo,Tan, Xin,Su, Qian,&Zhang, Suojiang.(2018).Tailoring Molecular Weight of Bioderived Polycarbonates via Bifunctional Ionic Liquids Catalysts under Metal-Free Conditions.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(2),2684-2693. |
| MLA | Ma, Congkai,et al."Tailoring Molecular Weight of Bioderived Polycarbonates via Bifunctional Ionic Liquids Catalysts under Metal-Free Conditions".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.2(2018):2684-2693. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment