Synthesis of well-defined difunctional polydimethylsiloxane with an efficient dianionic initiator for ABA triblock copolymer
文献类型：期刊论文
| 作者 | Zhang, Yong; Zhang, Zhijie; Wang, Qian; Xie, Zemin |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2007-01-05 |
| 卷号 | 103期号:1页码:153-159 |
| 关键词 | Anionic Polymerization Cyclotetrasiloxane Polydimethylsiloxane Hydrosilation Block Copolymer |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.25021 |
| 英文摘要 | A new efficient dianionic initiator dipotassium diphenylsilanediolate (Ph2Si(OK)(2)) was synthesized by reacting diphenylsilanediol with potassium in the mixture of THF and benzene. The anionic ring-opening polymerization of octamethylcyclotetrasiloxane (D-4) or tetramethyltetravinylcyclotetrasiloxane (D-4(Vi)) initiated by Ph2Si(OK)(2) was systematically investigated. A number of factors including the nature of initiators, promoters, and monomers, the molar ratio of promoter to initiator (C-p/C-i ratio) and monomer to initiator (C-p/C-i ratio) affect the polymerization remarkably. Using N-methyl-2-pyrrolidinone as the promoter, a series of well-defined difunctional H-Si-terminated polydimethylsiloxanes (PDMSs) were prepared with high monomer conversion (> 90%) and relatively low polydispersity (< 1.6) at 30 degrees C. By hydrosilation of the synthesized PDMS with ally end-capped poly(ethylene oxide) (PEO), amphiphilic PEO-b-PDMS-b-PEO triblock copolymers with low polydispersities and high block purities were obtained. (C) 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 153-159, 2007 |
| 语种 | 英语 |
| WOS记录号 | WOS:000242060800021 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61655]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Zhijie |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yong,Zhang, Zhijie,Wang, Qian,et al. Synthesis of well-defined difunctional polydimethylsiloxane with an efficient dianionic initiator for ABA triblock copolymer[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2007,103(1):153-159. |
| APA | Zhang, Yong,Zhang, Zhijie,Wang, Qian,&Xie, Zemin.(2007).Synthesis of well-defined difunctional polydimethylsiloxane with an efficient dianionic initiator for ABA triblock copolymer.JOURNAL OF APPLIED POLYMER SCIENCE,103(1),153-159. |
| MLA | Zhang, Yong,et al."Synthesis of well-defined difunctional polydimethylsiloxane with an efficient dianionic initiator for ABA triblock copolymer".JOURNAL OF APPLIED POLYMER SCIENCE 103.1(2007):153-159. |
入库方式： OAI收割
来源：化学研究所
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