ICCAS OpenIR
Effect of pH on Complex Coacervate Core Micelles from Fe(III)-Based Coordination Polymer
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
2011-12-20
Source PublicationLANGMUIR
ISSN0743-7463
Volume27Issue:24Pages:14776-14782
AbstractThe 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.
DOI10.1021/la203449c
Indexed BySCI
Language英语
WOS IDWOS:000298118500011
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73646
Collection中国科学院化学研究所
Corresponding AuthorWang, Junyou
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Junyou]'s Articles
[de Keizer, Arie]'s Articles
[van Leeuwen, Herman P.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Junyou]'s Articles
[de Keizer, Arie]'s Articles
[van Leeuwen, Herman P.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Junyou]'s Articles
[de Keizer, Arie]'s Articles
[van Leeuwen, Herman P.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.