2-cyanoprop-2-yl dithiobenzoate mediated reversible addition-fragmentation chain transfer polymerization of acrylonitrile targeting a polymer with a higher molecular weight
文献类型：期刊论文
| 作者 | Liu, Xiao-Hui; Li, Yan-Guo; Lin, Ying; Li, Yue-Sheng |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 45期号:7页码:1272-1281 |
| 关键词 | Controlled/living Radical Polymerization Living Polymerization Molecular Weight Polyacrylonitrile Radical Polymerization Reversible Addition Fragmentation Chain Transfer (Raft) |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.21899 |
| 英文摘要 | The reversible addition-fragmentation chain transfer (RAFT) polymerization of acrylonitrile (AN) mediated by 2-cyanoprop-2-yl dithiobenzoate was first applied to synthesize polyacrylonitrile (PAN) with a high molecular weight up to 32,800 and a polydispersity index as low as 1.29. The key to success was ascribed to the optimization of the experimental conditions to increase the fragmentation reaction efficiency of the intermediate radical. In accordance with the atom transfer radical polymerization of AN, ethylene carbonate was also a better solvent candidate for providing higher controlled/living RAFT polymerization behaviors than dimethylformamide and dimethyl sulfoxide. The various experimental parameters, including the temperature, the molar ratio of dithiobenzoate to the initiator, the molar ratio of the monomer to dithiobenzoate, the monomer concentration, and the addition of the comonomer, were varied to improve the control of the molecular weight and polydispersity index. The molecular weights of PANS were validated by gel permeation chromatography along with a universal calibration procedure and intrinsic viscosity measurements. H-1 NMR analysis confirmed the high chain-end functionality of the resultant polymers. (c) 2007 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244979400008 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61035]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yue-Sheng |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiao-Hui,Li, Yan-Guo,Lin, Ying,et al. 2-cyanoprop-2-yl dithiobenzoate mediated reversible addition-fragmentation chain transfer polymerization of acrylonitrile targeting a polymer with a higher molecular weight[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2007,45(7):1272-1281. |
| APA | Liu, Xiao-Hui,Li, Yan-Guo,Lin, Ying,&Li, Yue-Sheng.(2007).2-cyanoprop-2-yl dithiobenzoate mediated reversible addition-fragmentation chain transfer polymerization of acrylonitrile targeting a polymer with a higher molecular weight.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,45(7),1272-1281. |
| MLA | Liu, Xiao-Hui,et al."2-cyanoprop-2-yl dithiobenzoate mediated reversible addition-fragmentation chain transfer polymerization of acrylonitrile targeting a polymer with a higher molecular weight".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 45.7(2007):1272-1281. |
入库方式： OAI收割
来源：化学研究所
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