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Thermosensitive N‐isopropylacrylamide ‐CO‐2‐hydroxyethyl acrylate hydrogels interactions with poly(acrylic acid) and surfactants
Author(s) -
Nakan Ulantay,
Mun Grigoriy A,
Rakhmetullayeva Raikhan K,
Tolkyn Balgyn,
Bieerkehazhi Shayahati,
Yeligbayeva Gulzhakhan Zh,
Negim ElSayed
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5070
Subject(s) - poly(n isopropylacrylamide) , acrylic acid , materials science , self healing hydrogels , acrylate , polymer chemistry , chemical engineering , copolymer , composite material , polymer , engineering
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.