Tunable Dual-Thermoresponsive Phase Behavior of Zwitterionic Polysulfobetaine Copolymers Containing Poly(N,N-dimethylaminoethyl methacrylate)-Grafted Silica Nanoparticles in Aqueous Solution
文献类型：期刊论文
| 作者 | Dong, Zhixin; Mao, Jun; Wang, Dapeng; Yang, Muquan; Wang, Weicai; Bo, Shuqin; Ji, Xiangling |
| 刊名 | MACROMOLECULAR CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 215期号:1页码:111-120 |
| 关键词 | Lower Critical Solution Temperature (Lcst) Dual-thermoresponsive Phase Behavior Surface-initiated Atom Transfer Radical Polymerization Upper Critical Solution Temperature (Ucst) |
| ISSN号 | 1022-1352 |
| DOI | 10.1002/macp.201300552 |
| 英文摘要 | Novel thermoresponsive copolymers of zwitterionic sulfobetaine methacrylate (SBMA)- and N,N-dimethylaminoethyl methacrylate (DMAEMA)-grafted silica nanoparticles are prepared via surface-initiated atom transfer radical polymerization. The phase behavior of these nanoparticles is investigated. The hybrid nanoparticles exhibit tunable phase transition temperature between the upper critical solution temperature (UCST) and the lower critical solution temperature (LCST) in aqueous solution. A high PSBMA content in P(SBMA-co-DMAEMA) copolymer in the hybrid nanoparticles leads to aggregation at low temperatures because of dominant electrostatic interactions of ionic pairs, whereas a relatively low PSBMA content in the hybrid nanoparticles results in a phase transition at high temperatures as a result of predominant hydrophobic interactions of the PDMAEMA. Interestingly, hybrid nanoparticles with a suitable molar ratio of SBMA/DMAEMA exhibit both UCST and LCST in aqueous solution, where the water-insoluble microdomains of hybrid nanoparticles are generated by the PSBMA or PDMAEMA region depending on the temperature. The above dual-thermoresponsive phase transition is also controllable in salt solution. A facile change in the molar content of copolymer grafted on silica nanoparticles will tune the UCST and LCST readily. |
| 语种 | 英语 |
| WOS记录号 | WOS:000330592600013 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51177]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ji, Xiangling |
| 作者单位 | Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Zhixin,Mao, Jun,Wang, Dapeng,et al. Tunable Dual-Thermoresponsive Phase Behavior of Zwitterionic Polysulfobetaine Copolymers Containing Poly(N,N-dimethylaminoethyl methacrylate)-Grafted Silica Nanoparticles in Aqueous Solution[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2014,215(1):111-120. |
| APA | Dong, Zhixin.,Mao, Jun.,Wang, Dapeng.,Yang, Muquan.,Wang, Weicai.,...&Ji, Xiangling.(2014).Tunable Dual-Thermoresponsive Phase Behavior of Zwitterionic Polysulfobetaine Copolymers Containing Poly(N,N-dimethylaminoethyl methacrylate)-Grafted Silica Nanoparticles in Aqueous Solution.MACROMOLECULAR CHEMISTRY AND PHYSICS,215(1),111-120. |
| MLA | Dong, Zhixin,et al."Tunable Dual-Thermoresponsive Phase Behavior of Zwitterionic Polysulfobetaine Copolymers Containing Poly(N,N-dimethylaminoethyl methacrylate)-Grafted Silica Nanoparticles in Aqueous Solution".MACROMOLECULAR CHEMISTRY AND PHYSICS 215.1(2014):111-120. |
入库方式： OAI收割
来源：化学研究所
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