Dissipative Particle Dynamics Study of the pH-Dependent Behavior of Poly(2-vinylpyridine)-block-poly(ethylene oxide) Diblock Copolymer in Aqueous Buffers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10210805" target="_blank" >RIV/00216208:11310/14:10210805 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/14:00427851 RIV/44555601:13440/14:43885802
Result on the web
<a href="http://pubs.acs.org/doi/pdf/10.1021/ma402293c" target="_blank" >http://pubs.acs.org/doi/pdf/10.1021/ma402293c</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/ma402293c" target="_blank" >10.1021/ma402293c</a>

Result language
angličtina
Original language name
Dissipative Particle Dynamics Study of the pH-Dependent Behavior of Poly(2-vinylpyridine)-block-poly(ethylene oxide) Diblock Copolymer in Aqueous Buffers
Original language description
The paper describes the pH-dependent self-assembly of a diblock copolymer, poly(2-vinylpyridine)-block-poly(ethylene oxide), P2VP-PEO in aqueous media using computer simulations. We employed the dissipative particle dynamics (DPD) method and found that the copolymer with electrically neutral (i.e., deprotonated) or very low-protonated P2VP blocks form multimolecular spherical core shell micelles with insoluble P2VP cores in neutral and alkaline solutions, while protonization (ionization) of P2VP blocksexceeding 25% provokes the dissociation of micelles in single chains in acidic media. The finding that a clearly pronounced transition occurs in a restricted pH region slightly above pK(A)(ap) (where pK(A)(ap) is the apparent dissociation constant of theconjugated acid P2VPH(+)) is in good agreement with the experimental data (Macromolecules 1996, 29, 6071-6073). This suggests that (i) the tested model is reasonable and the mutual relationship between the parameters used in the soft rep
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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