Synthesis of Azide End-Functionalized Isotactic Polypropylene Building Block and Renewed Modular Synthesis of Diblock Copolymers of Isotactic Polypropylene and Poly(epsilon-caprolactone)
文献类型：期刊论文
| 作者 | Huang, Huahua; Niu, Hui; Dong, Jin-Yong |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2011-05-15 |
| 卷号 | 49期号:10页码:2222-2232 |
| 关键词 | Block Copolymers Building Block Diblock Copolymer Functionalization Of Polymers Isotactic Polypropylene Polyolefins Poly(Epsilon-caprolactone) |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.24653 |
| 英文摘要 | This article details a synthesis of azide end-functionalized isotactic polypropylene (i-PP), a unique polymeric building block that can engage in Huisgen's 1,3-dipolar cycloaddition of azide and alkyne (click reaction) to construct well-defined i-PP-based polymer architecture. Controlled, consecutive chain transfer reaction to 1,2-bis(4-vinylphenyl) ethane and hydrogen in metallocene-mediated propylene polymerization catalyzed by rac-Me(2)Si(2-Me-4-Ph-Ind)(2)ZrCl(2)/MAO resulted in styryl-terminated i-PP (i-PP-t-St) of controlled molecular weight. Following a regioselective hydrochlorination reaction, the terminal styryl groups were quantatively transformed to 1-chloroethylbenzene groups, which was further reacted with NaN(3) to give i-PP terminated with an azide group (i-PP-t-N(3)). Structural monitoring of the polymers through the whole transformation process using (1)H NMR and FTIR as well as GPC and DSC reveals a clean and clear formation of i-PP-t-N(3) (M(n) in between 10,000 and 40,000 g/mol). This clickable i-PP building block was applied to a renewed, modular synthesis of amphiphilic i-PP-b-PCL (poly(epsilon-caprolactone)) diblock copolymers. Composition-diversified, structure-well defined diblock copolymers were obtained in high yields, confirming both the high end group selectivity as well as high reactivity of azide the clickable moiety in the i-PP building block and the effectiveness of azide-alkyne click reaction in constructing new i-PP architecture. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2222-2232, 2011 |
| 语种 | 英语 |
| WOS记录号 | WOS:000289443900013 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71647]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Dong, Jin-Yong |
| 作者单位 | Chinese Acad Sci, CAS Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Huahua,Niu, Hui,Dong, Jin-Yong. Synthesis of Azide End-Functionalized Isotactic Polypropylene Building Block and Renewed Modular Synthesis of Diblock Copolymers of Isotactic Polypropylene and Poly(epsilon-caprolactone)[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2011,49(10):2222-2232. |
| APA | Huang, Huahua,Niu, Hui,&Dong, Jin-Yong.(2011).Synthesis of Azide End-Functionalized Isotactic Polypropylene Building Block and Renewed Modular Synthesis of Diblock Copolymers of Isotactic Polypropylene and Poly(epsilon-caprolactone).JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,49(10),2222-2232. |
| MLA | Huang, Huahua,et al."Synthesis of Azide End-Functionalized Isotactic Polypropylene Building Block and Renewed Modular Synthesis of Diblock Copolymers of Isotactic Polypropylene and Poly(epsilon-caprolactone)".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 49.10(2011):2222-2232. |
入库方式： OAI收割
来源：化学研究所
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