A well-defined ladder polyphenylsilsesquioxane (Ph-LPSQ) synthesized via a new three-step approach: Monomer self-organization-lyophilization-surface-confined polycondensation
文献类型：期刊论文
| 作者 | Zhang, Zhong-Xing; Hao, Jinkun; Xie, Ping; Zhang, Xiaojing; Han, Charles C.; Zhang, Rongben |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2008-02-26 |
| 卷号 | 20期号:4页码:1322-1330 |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/cm0716021 |
| 英文摘要 | A high-molecular-weight and well-defined ladder polyphenylsilsesquioxane (Ph-LPSQ) was synthesized via a new three-step approach: monomer self-organization in solution, lyophilization, and surface-confined polycondensation. A ladder superstructure, which served as a template to direct the polycondensation, was self-assembled from the 1,3-diphenyl-tetrahydroxy-disiloxane monomer (M) in acetonitrile solution. Following that, it was lyophilized to form a thin layer on the inner surface of a flask. Subsequently, polycondensation of the ordered monomeric thin layer was performed under a triethylamine (TEA) atmosphere. This strategy increased the ladder regularity of the Ph-LPSQ by preventing common complications faced in solution polycondensation of silanol-containing monomers, such as cyclization and gelation side reactions. Si-29 NMR analysis showed a very narrow peak (peak width at half-height, w(1/2) = 2.5 ppm) at delta = -78.5 (corresponding to a Ph-SiO(3/2)unit), indicating a high degree of regularity of the polymer structure. |
| 语种 | 英语 |
| WOS记录号 | WOS:000253283700031 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64979]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xie, Ping |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat,BNLMS, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhong-Xing,Hao, Jinkun,Xie, Ping,et al. A well-defined ladder polyphenylsilsesquioxane (Ph-LPSQ) synthesized via a new three-step approach: Monomer self-organization-lyophilization-surface-confined polycondensation[J]. CHEMISTRY OF MATERIALS,2008,20(4):1322-1330. |
| APA | Zhang, Zhong-Xing,Hao, Jinkun,Xie, Ping,Zhang, Xiaojing,Han, Charles C.,&Zhang, Rongben.(2008).A well-defined ladder polyphenylsilsesquioxane (Ph-LPSQ) synthesized via a new three-step approach: Monomer self-organization-lyophilization-surface-confined polycondensation.CHEMISTRY OF MATERIALS,20(4),1322-1330. |
| MLA | Zhang, Zhong-Xing,et al."A well-defined ladder polyphenylsilsesquioxane (Ph-LPSQ) synthesized via a new three-step approach: Monomer self-organization-lyophilization-surface-confined polycondensation".CHEMISTRY OF MATERIALS 20.4(2008):1322-1330. |
入库方式： OAI收割
来源：化学研究所
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