Polysulfobetaine-surfactant solutions and their use in stabilizing hydrophobic compounds in saline solution

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • University of Helsinki
  • University of Montreal

Kuvaus

A star shaped poly(sulfobetaine methacrylate) (PSBMA) and its linear analogs, display upper-critical solution-temperature (UCST) type behavior in 0.1 M NaCI. The presence of sodium dodecyl sulfate (SDS) or cetyl trimethyl ammonium bromide (CTAB) has a significant effect on the thermal transition of the polymer. The association of the polymer with the surfactants is confirmed by isothermal titration calorimetry (ITC) and infrared (IR) spectroscopy. SDS forms hydrophobic domains along the polymer chains, preventing the polymers from undergoing a thermal phase transition. These domains can be used to capture 1-anilino-8-naphthalenesulfonate (1,8-ANS), pyrene and curcumin, and increase their fluorescence intensity. Curcumin, which is unstable in aqueous solutions, is stabilized against degradation upon solubilization by the PSBMA-SDS complexes. (C) 2017 Elsevier Ltd. All rights reserved.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut77-87
Sivumäärä11
JulkaisuPolymer
Vuosikerta127
TilaJulkaistu - 3 lokakuuta 2017
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 32394461