Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study

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Title:Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study
Creators:
Jelínek, Karel
Uhlík, Filip
Limpouchová, Zuzana
Matějíček, Pavel
Procházka, Karel
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 71, 5, pp. 756-768
Uncontrolled Keywords:Mean-field calculations, Poly(methacrylic acid), SCF calculations, Aqueous solutions, Polyelectrolytes, Nanoparticles, Copolymer micelles

Abstract

The multimolecular micelles formed by polystyrene-<i>block</i>-poly(methacrylic acid) (PS-PMA) copolymer and by hydrophobically modified PS-PMA copolymer with naphthalene and anthracene (PS-N-PMA-A) were studied by self-consistent field (SCF) calculations in aqueous media. The labeling with covalently bonded naphthalene between PS and PMA blocks and with anthracene at the free end of PMA blocks, which is suitable for experimental nonradiative excitation energy transfer (NRET) studies of PS-N-PMA-A micelles, modifies the structure of micellar shell. The study was aimed at understanding structure and behavior of micelles at different pH and ionic strength. The results show that the presence of hydrophobic tags has only a small influence on the overall structure of micelles but it strongly affects the distribution of PMA free ends. The hydrophobic labels (anthracenes) try to return into the shell and their certain fraction is localized close to the core/shell interface, which causes a fairly high NRET efficiency. The calculated and experimentally measured NRET efficiency were compared; their trends are reasonable at the semiquantitative level. <p>

Title:Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study
Creators:
Jelínek, Karel
Uhlík, Filip
Limpouchová, Zuzana
Matějíček, Pavel
Procházka, Karel
Uncontrolled Keywords:Mean-field calculations, Poly(methacrylic acid), SCF calculations, Aqueous solutions, Polyelectrolytes, Nanoparticles, Copolymer micelles
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:71
Number:5
Page Range:pp. 756-768
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20060756UNSPECIFIED
ID Code:2505
Item Type:Article
Deposited On:06 Feb 2009 17:19
Last Modified:06 Feb 2009 16:19

Citation

Jelínek, Karel; Uhlík, Filip; Limpouchová, Zuzana; Matějíček, Pavel; Procházka, Karel (2006) Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study. Collection of Czechoslovak Chemical Communications, 71 (5). pp. 756-768. ISSN 0010-0765

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