Počet záznamů: 1

Molecular properties of conjugates formed by synthetic hydrophilic polymers and sterically hindered phenols

  1. 1.
    0348269 - UMCH-V 2011 RIV RU eng J - Článek v odborném periodiku
    Domnina, N. S. - Sergeeva, O. Yu. - Koroleva, A. N. - Rakitina, O. V. - Dobrun, L. A. - Filippov, Sergey K. - Mikhailova, M. E. - Lezov, A. V.
    Molecular properties of conjugates formed by synthetic hydrophilic polymers and sterically hindered phenols.
    Polymer Science Series A. Roč. 52, č. 9 (2010), s. 900-906 ISSN 0965-545X
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: antioxidant * conjugates * light scattering
    Kód oboru RIV: CD - Makromolekulární chemie
    Impakt faktor: 0.659, rok: 2010

    Water-soluble conjugates are prepared via the chemical modification of poly(vinyl alcohol) and poly(ethylene glycol) by antioxidants taken from the family of sterically hindered phenols. It is shown that an increase in the amount of antioxidant groups incorporated into the poly(vinyl alcohol) chain leads to a decrease in the dimensions of single conjugate molecules owing to attraction of hydrophobic groups. Poly(ethylene glycol) molecules carrying end groups of sterically hindered phenols form micellar aggregates that are absent in the solution of the initial polymer. It is found that the presence of hydrophobic end groups in poly(ethylene glycol) molecules causes a sharp reduction in the lower critical solution temperature of a solution relative to that of the initial polymer.
    Trvalý link: http://hdl.handle.net/11104/0006042