1H NMR study of temperature-induced phase separation in solutions of poly(N-isopropylmethacrylamide-co-acrylamide) copolymers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10069888" target="_blank" >RIV/00216208:11320/10:10069888 - isvavai.cz</a>

Alternative codes found

RIV/61389013:_____/10:00343295

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

1H NMR study of temperature-induced phase separation in solutions of poly(N-isopropylmethacrylamide-co-acrylamide) copolymers

Original language description

1H NMR spectroscopy was applied to investigate temperature-induced phase separation in solutions of poly(N-isopropylmethacrylamide-co-acrylamide) [P(IPMAm/AAm)] random copolymers in D2O, D2O/ethanol and D2O/acetone. For solutions of the copolymers with the AAm fraction not exceeding 16 mol% 1H NMR spectra show dynamic heterogeneity of copolymer chains in mesoglobules where AAm sequences and surrounding IPMAm sequences are hydrated and mobile, while other IPMAm sequences are dehydrated and their mobilityis strongly reduced. The obtained results are consistent with the idea that P(IPMAm/AAm) copolymer mesoglobules are rather porous and disordered.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA202%2F09%2F1281" target="_blank" >GA202/09/1281: Stimuli-responsive multicomponent polymer systems in aqueous solutions and gels investigated by NMR and other methods</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Polymer Journal

ISSN

0014-3057

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

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UT code for WoS article

000279085200014

EID of the result in the Scopus database

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