Synthesis and pH- and salinity-controlled self-assembly of novel amphiphilic block-gradient copolymers of styrene and acrylic acid
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F12%3A00379206" target="_blank" >RIV/61389013:_____/12:00379206 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/C2SM25625H" target="_blank" >http://dx.doi.org/10.1039/C2SM25625H</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/C2SM25625H" target="_blank" >10.1039/C2SM25625H</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis and pH- and salinity-controlled self-assembly of novel amphiphilic block-gradient copolymers of styrene and acrylic acid
Original language description
A novel type of amphiphilic ionic copolymer comprising a hydrophilic poly(acrylic acid) (PAA) block and an amphiphilic poly(acrylic acid)-grad-poly(styrene) (PAA-grad-PS) copolymer block was synthesized using a one step direct nitroxide-mediated polymerization. The aggregation behaviour of the copolymers in the aqueous medium was studied by small-angle neutron scattering and dynamic light scattering and by transmission electron microscopy in a wide range of pHs and ionic strengths. It has been demonstrated that PAA-b-(PAA-grad-PS) copolymers are soluble in alkaline water at room temperature without special experimental procedures and self-assemble into nano-scale aggregates at low/moderate pH and/or high ionic strength. In contrast to ?frozen aggregates formed by PAA-b-PS copolymers in aqueous media, the micelles of PAA-b-(PAA-grad-PS) amphiphilic copolymers can reversibly change their aggregation number upon a variation in the pH or salinity of the solution.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP208%2F10%2F1600" target="_blank" >GAP208/10/1600: Polymeric particles and nanostructured materials stabilized by surface active molecules</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Soft Matter
ISSN
1744-683X
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
29
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
7649-7659
UT code for WoS article
000305981600017
EID of the result in the Scopus database
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