NMR study of phase separation in D2O/ethanol solutions of poly(N-isopropylmethacrylamide) induced by solvent composition and temperature

0329661 - ÚMCH 2010 RIV GB eng J - Článek v odborném periodiku
Kouřilová, H. - Hanyková, L. - Spěváček, Jiří
NMR study of phase separation in D2O/ethanol solutions of poly(N-isopropylmethacrylamide) induced by solvent composition and temperature.
European Polymer Journal. Roč. 45, č. 10 (2009), s. 2935-2941. ISSN 0014-3057. E-ISSN 1873-1945
Grant CEP: GA ČR GA202/09/1281
Grant ostatní: GA UK(CZ) 27508/2008
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: poly(N-isopropylmethacrylamide)/D2O/ethanol solutions * phase separation * cononsolvency * 1H and 13C NMR spectroscopy
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 2.310, rok: 2009

1H and 13C NMR spectroscopies were applied to investigate phase separation in solutions of poly(N-isopropylmethacrylamide) (PIPMAm) in D2O/ethanol (EtOH) mixtures induced by solvent composition (cononsolvency) and temperature. Differences in mesoglobules formed during the phase separation induced by cononsolvency and temperature were found. While for temperature-induced phase separation there is a portion of EtOH molecules bound in mesoglobules, virtually no bound EtOH was detected for mesoglobules formed as a consequence of the cononsolvency.
Trvalý link: http://hdl.handle.net/11104/0005460