New effort to synthesize star isotactic polypropylene
文献类型：期刊论文
| 作者 | Liu, Xinzhi1; Niu, Hui1; Li, Yang1; Dong, Jin-Yong2,3 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2018-06-28 |
| 卷号 | 9期号:24页码:3347-3354 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c8py00318a |
| 英文摘要 | This study demonstrates an efficient arm-first approach for the synthesis of star isotactic polypropylene (iPP) via two steps. In the first step iPP "arm" containing a methoxysilane-terminal end was prepared via a designed chain-capping reaction in propylene polymerization, and in the second step an acid-catalyzed intermolecular elimination reaction was carried out between methoxysilane groups at these "arm-ends", finally giving star polymers with iPP as the arm and Si-O-Si cross-linking structure as the core. Moreover, the arm number could be tailored from 3 to 8 by adjusting the star-forming (cross-linking) reaction time. The chemical structures of "arm" and star polymers were monitored by H-1-NMR, and the star-topological structure evolution was investigated via gel permeation chromatography incorporating a light scattering detector (GPC-LS). The star polymers' absolute molecular weights as well as their dilute solution properties including the intrinsic viscosity ([eta]) and the Mark-Houwink exponent (a) were determined by GPC-LS, confirming the successful synthesis of star iPPs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000435667000004 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42559]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Niu, Hui |
| 作者单位 | 1.Dalian Univ Technol, Sch Chem Engn, Dept Polymer Sci & Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xinzhi,Niu, Hui,Li, Yang,et al. New effort to synthesize star isotactic polypropylene[J]. POLYMER CHEMISTRY,2018,9(24):3347-3354. |
| APA | Liu, Xinzhi,Niu, Hui,Li, Yang,&Dong, Jin-Yong.(2018).New effort to synthesize star isotactic polypropylene.POLYMER CHEMISTRY,9(24),3347-3354. |
| MLA | Liu, Xinzhi,et al."New effort to synthesize star isotactic polypropylene".POLYMER CHEMISTRY 9.24(2018):3347-3354. |
入库方式： OAI收割
来源：化学研究所
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