Application of thiol-ene click chemistry to preparation of functional polyethylene with high molecular weight and high polar group content: Influence of thiol structure and vinyl type on reactivity
文献类型：期刊论文
| 作者 | Hong, Miao1,2; Liu, San-Rong1; Li, Bai-Xiang1; Li, Yue-Sheng1 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2012-06-15 |
| 卷号 | 50期号:12页码:2499-2506 |
| 关键词 | Ziegler-natta Polymerization Functionalization Of Polymer Polyolefins Thiol-ene Reaction |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.26026 |
| 英文摘要 | A series of functional polyethylenes have been simply and efficiently synthesized via the combination of regioselective ethylene/5-vinyl-2-norbornene (VNB) copolymerization using [PhNC(CF3)CHCO(Ph)]2TiCl2 catalyst and following ultraviolet light initiated thiol-ene click reaction. On treatment of ethylene/VNB copolymer with different thiols including mercaptoethanol, 1-thioglycerol, methyl mercaptoacetate, methyl mercaptopropionate, 2-mercaptoethylamine, mercaptoacetic acid, and mercaptopropanoic acid, various polar groups have been successfully introduced into the polyethylene. Except 2-mercaptoethylamine, the functionalizations are quite efficient with the degree of functionalization higher than 94%, which is independent of thiol structure and double bond content. The content of polar group in functional polyethylene can be tuned in a wide range of 030 mol %. Gel permeation chromatography profiles indicate all functional polyethylenes that have very high molecular weights (160336 kg/mol) with homogeneous formation. Besides, systematic investigation of the influence of vinyl type and thiol structure on reactivity has been also carried out. By treatment of mercaptoethanol with different copolymers (ethylene/VNB, ethylene/5-ethylidene-2-norbornene, and ethylene/dicyclopentadiene copolymer), the order of vinyl reactivity can be summarized as terminal > internal > cyclic double bond. For different thiols, the reactivity has the sequence of SHCH2COOH > SHCH2COOCH3 > SHCH2CH2COOH > SHCH2CH2COOCH3 > SHCH2CH(OH)CH2OH > SHCH2CH2OH > SHCH2CH2NH2, which is depended on the solubility and the electron-withdrawing inductive effect of polar group. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 |
| 语种 | 英语 |
| WOS记录号 | WOS:000303758200020 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47939]  |
| 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 Branch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hong, Miao,Liu, San-Rong,Li, Bai-Xiang,et al. Application of thiol-ene click chemistry to preparation of functional polyethylene with high molecular weight and high polar group content: Influence of thiol structure and vinyl type on reactivity[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2012,50(12):2499-2506. |
| APA | Hong, Miao,Liu, San-Rong,Li, Bai-Xiang,&Li, Yue-Sheng.(2012).Application of thiol-ene click chemistry to preparation of functional polyethylene with high molecular weight and high polar group content: Influence of thiol structure and vinyl type on reactivity.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,50(12),2499-2506. |
| MLA | Hong, Miao,et al."Application of thiol-ene click chemistry to preparation of functional polyethylene with high molecular weight and high polar group content: Influence of thiol structure and vinyl type on reactivity".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 50.12(2012):2499-2506. |
入库方式： OAI收割
来源：化学研究所
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