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Thermoresponsive behavior of poly(DEGMA)-based copolymers. NMR and dynamic light scattering study of aqueous solutions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00520469" target="_blank" >RIV/61389013:_____/20:00520469 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0014305719322645?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0014305719322645?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.eurpolymj.2020.109488" target="_blank" >10.1016/j.eurpolymj.2020.109488</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Thermoresponsive behavior of poly(DEGMA)-based copolymers. NMR and dynamic light scattering study of aqueous solutions

  • Original language description

    We studied temperature behavior of diblock copolymers of poly[2-(2-methoxyethoxy)ethyl methacrylate] (PDEGMA) with poly(N-(2-hydroxypropyl)methacrylamide and a statistical copolymer PDEGMA-co-N-propargylmethacrylamide in aqueous solutions. NMR spectra and dynamic light scattering showed that the copolymers exhibit a reversible phase transition which depends on the composition of the block copolymer and slightly on polymer concentration. In contrast to statistical copolymer, different behavior of proton groups in polymer backbone (and in the nearest side chain OCH2 group) on the one hand and in other side chain groups of the PDEGMA on the other hand was observed for diblock copolymers. Additionally, two types of water molecules were detected in solutions of the diblock copolymers above the phase transition –“free” with long and “bound” with short spin-spin relaxation times T2. NOESY spectra indicate that a core- to- shell morphology is unlikely in these block copolymers. This report emphasizes the importance of understanding of the self-association of copolymers in solution on the molecular level and provides important information for the design of “smart” thermoresponsive polymer-based drug delivery systems.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10404 - Polymer science

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    European Polymer Journal

  • ISSN

    0014-3057

  • e-ISSN

  • Volume of the periodical

    124

  • Issue of the periodical within the volume

    5 February

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    14

  • Pages from-to

    1-14

  • UT code for WoS article

    000514024400018

  • EID of the result in the Scopus database

    2-s2.0-85077471755