AB(2)-Type Amphiphilic Block Copolymers Composed of Poly(ethylene glycol) and Poly(N-isopropylacrylamide) via Single-Electron Transfer Living Radical Polymerization: Synthesis and Characterization
文献类型：期刊论文
| 作者 | Tang, Xinde1,2,3; Liang, Xiaochao2,3; Yang, Qian2,3; Fan, Xinghe2,3; Shen, Zhihao2,3; Zhou, Qifeng2,3 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 47期号:17页码:4420-4427 |
| 关键词 | Ab(2)-type Amphiphiles Amphiphilic Block Copolymer Atom Transfer Radical Polymerization (Atrp) Block Copolymers Poly(Ethylene Glycol) Poly(N-isopropylacrylamide) Single-electron Transfer Living Radical Polymerization (Set-lrp) Star Polymers Stimuli-sensitive Polymers |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.23495 |
| 英文摘要 | Novel AB(2)-type amphiphilic block copolymers of poly(ethylene glycol) and poly(N-isopropylacrylamide), PEG-b-(PNIPAM)(2), were successfully synthesized through single-electron transfer living radical polymerization (SET-LRP). A difunctional macroinitiator was prepared by esterification of 2,2-dichloroacetyl chloride with poly(ethylene glycol) monomethyl ether (PEG). The copolymers were obtained via the SET-LRP of N-isopropylacrylamide (NIPAM) with CuCl/tris(2-(dimethylamino)ethyl)amine (Me6TREN) as catalytic system and DMF/H2O (v/v = 3:1) mixture as solvent. The resulting copolymers were characterized by gel permeation chromatography and H-1 NMR. These block copolymers show controllable molecular weights and narrow molecular weight distributions (PDI < 1.15). Their phase transition temperatures and the corresponding enthalpy changes in aqueous solution were measured by differential scanning calorimetry. As a result, the phase transition temperature of PEG(44)-b-(PNIPAM(55))(2) is similar to that in the case of PEG(44)-b-PNIPAM(110); however, the corresponding enthalpy change is much lower, indicating the significant influence of the macromolecular architecture on the phase transition. This is the first study into the effect of macromolecular architecture on the phase transition using AB(2)-type amphiphilic block copolymer composed of PEG and PNIPAM. (C) 2009 Wiley Periodicals, Inc. J Polyrn Sci Part A: Polym Chem 47: 4420-4427, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000269090300018 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67673]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Xinde |
| 作者单位 | 1.Shandong Jiaotong Univ, Inst New Mat, Jinan 250023, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Minist Educ, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Minist Educ, Key Lab Polymer Chem & Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Xinde,Liang, Xiaochao,Yang, Qian,et al. AB(2)-Type Amphiphilic Block Copolymers Composed of Poly(ethylene glycol) and Poly(N-isopropylacrylamide) via Single-Electron Transfer Living Radical Polymerization: Synthesis and Characterization[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2009,47(17):4420-4427. |
| APA | Tang, Xinde,Liang, Xiaochao,Yang, Qian,Fan, Xinghe,Shen, Zhihao,&Zhou, Qifeng.(2009).AB(2)-Type Amphiphilic Block Copolymers Composed of Poly(ethylene glycol) and Poly(N-isopropylacrylamide) via Single-Electron Transfer Living Radical Polymerization: Synthesis and Characterization.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,47(17),4420-4427. |
| MLA | Tang, Xinde,et al."AB(2)-Type Amphiphilic Block Copolymers Composed of Poly(ethylene glycol) and Poly(N-isopropylacrylamide) via Single-Electron Transfer Living Radical Polymerization: Synthesis and Characterization".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 47.17(2009):4420-4427. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。