Effect of pH on Complex Coacervate Core Micelles from Fe(III)-Based Coordination Polymer
文献类型：期刊论文
| 作者 | Wang, Junyou1; de Keizer, Arie1; van Leeuwen, Herman P.1; Yan, Yun2; Vergeldt, Frank3,4; van As, Henk3,4; Bomans, Paul H. H.5,6; Sommerdijk, Nico A. J. M.5,6; Stuart, Martien A. Cohen1; van der Gucht, Jasper1 |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2011-12-20 |
| 卷号 | 27期号:24页码:14776-14782 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la203449c |
| 英文摘要 | The effect of pH on iron-containing complex coacervate core micelles [Fe(III)-C3Ms] is investigated in this paper. The Fe(III)-C3Ms are formed by mixing cationic poly(N-methyl-2-vinylpyridinium iodide)-b-poly(ethylene oxide) [P2MVP(41)-b-PEO(205)] and anionic iron coordination polymers [Fe(III)-L(2)EO(4)] at stoichiometric charge ratio. Light scattering and Cryo-TEM have been performed to study the variations of hydrodynamic radius and core structure with changing pH. The hydrodynamic radius of Fe (III)-C3Ms is determined mainly by the corona and does not change very much in a broad pH range. However, Cryo-TEM pictures and magnetic relaxation measurements indicate that the structure of the micellar cores changes upon changing the pH, with a more crystalline, elongated shape and lower relaxivity at high pH. We attribute this to the formation of mixed iron complexes in the core, involving both the bis-ligand and hydroxide ions. These complexes are stabilized toward precipitation by the diblock copolymer. |
| 语种 | 英语 |
| WOS记录号 | WOS:000298118500011 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/73645]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Junyou |
| 作者单位 | 1.Wageningen Univ, Lab Phys Chem & Colloid Sci, NL-6703 HB Wageningen, Netherlands 2.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Struct Chem Unstable & Stable Species, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.Wageningen Univ, Biophys Lab, NL-6703 HA Wageningen, Netherlands 4.Wageningen Univ, Wageningen NMR Ctr, NL-6703 HA Wageningen, Netherlands 5.Eindhoven Univ Technol, Lab Mat & Interface Chem, NL-5600 MB Eindhoven, Netherlands 6.Eindhoven Univ Technol, Soft Matter CryoTEM Res Unit, Dept Chem Engn & Chem, NL-5600 MB Eindhoven, Netherlands |
| 推荐引用方式 GB/T 7714 | Wang, Junyou,de Keizer, Arie,van Leeuwen, Herman P.,et al. Effect of pH on Complex Coacervate Core Micelles from Fe(III)-Based Coordination Polymer[J]. LANGMUIR,2011,27(24):14776-14782. |
| APA | Wang, Junyou.,de Keizer, Arie.,van Leeuwen, Herman P..,Yan, Yun.,Vergeldt, Frank.,...&van der Gucht, Jasper.(2011).Effect of pH on Complex Coacervate Core Micelles from Fe(III)-Based Coordination Polymer.LANGMUIR,27(24),14776-14782. |
| MLA | Wang, Junyou,et al."Effect of pH on Complex Coacervate Core Micelles from Fe(III)-Based Coordination Polymer".LANGMUIR 27.24(2011):14776-14782. |
入库方式： OAI收割
来源：化学研究所
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