Thermosensitive N-isopropylacrylamide -CO-2-hydroxyethyl acrylate hydrogels interactions with poly(acrylic acid) and surfactants
Nakan U. Mun G.A. Rakhmetullayeva R.K. Tolkyn B. Bieerkehazhi S. Yeligbayeva G.Z. Negim E.-S.
July 2021John Wiley and Sons Ltd
Polymers for Advanced Technologies
2021#32Issue 72676 - 2681 pp.
Thermosensitive hydrogels based on N-isopropylacrylamide (NIPAAm) and 2-hydroxyl ethyl acrylate (2-HEA) were synthesized with different composition ratios at 50:50 and 70:30 mol% using ammonium persulfate as free radical initiation system. The hydrogel was characterized by Fourier transform infrared spectroscopy (FTIR). The interpolymer complex between hydrogels and linear with poly(acrylic acid) (PAA) with different molecular weight was studied. The effect of pH, molecular weights, inorganic salt (NaCl) as well as surfactants concentrations on the complexation was investigated. The swelling behavior of the thermosensitive hydrogels in PAA solutions went up with increasing pH and molecular weight of PAA. However, the decreasing the concentration of surfactants sodium dodecyl sulfate (SDS) and cetylpyridinium bromide (CPB) increased the swelling behavior of hydrogels.
interpolymer complex , low-molecular salt , poly(acrylic acid) , surfactants , thermosensitive hydrogel
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Institute of Chemical and Biological Technologies, Satbayev University, Almaty, 050013, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
A.B. Bekturov Institute of Chemical Sciences, Ualihanov 106, Almaty, 050010, Kazakhstan
Department of Biochemistry and Molecular Biology, University of Texas Science Center, Houston, TX, United States
Laboratory of Advanced Materials and Technology, Kazakh-British Technical University, Tolebi 59, Almaty, Kazakhstan
Polymer & Pigment Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, Egypt
Institute of Chemical and Biological Technologies
Al-Farabi Kazakh National University
A.B. Bekturov Institute of Chemical Sciences
Department of Biochemistry and Molecular Biology
Laboratory of Advanced Materials and Technology
Polymer & Pigment Department
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