Počet záznamů: 1

Role of hydration and water coordination in micellization of Pluronic block copolymers

  1. 1.
    0348377 - UMCH-V 2011 RIV US eng J - Článek v odborném periodiku
    Šturcová, Adriana - Schmidt, Pavel - Dybal, Jiří
    Role of hydration and water coordination in micellization of Pluronic block copolymers.
    Journal of Colloid and Interface Science. Roč. 352, č. 2 (2010), s. 415-423 ISSN 0021-9797
    Grant CEP: GA ČR GA203/09/1478
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: pluronics * Raman * ATR FTIR
    Kód oboru RIV: CD - Makromolekulární chemie
    Impakt faktor: 3.068, rok: 2010

    Raman, attenuated total reflectance (ATR) FTIR spectroscopy, and DFT calculations were applied to aqueous solutions of block copolymers Pluronic PE6200, PE6400 and F68. Micellization of Pluronics is reflected in the hydroxyl stretching region of the spectra obtained. Raman spectra exhibit differences between hydration of each Pluronic even below the critical micellization temperature (CMT). ATR FTIR spectra show that models of mixed states of water with different hydrogen bonding environments provide appropriate descriptions of bound water below and above the CMT. Above the CMT, differences in microstructure of aggregates formed by each copolymer are detected. Nanoscale phenomena of hydration are thus related to the mesoscale phenomenon of micellization.
    Trvalý link: http://hdl.handle.net/11104/0188927