Preparation and properties of fast temperature-responsive soy protein/PNIPAAm IPN hydrogels | Zendy

Yong Liu | Zendy; Yingde Cui | Zendy; GuoJie Wu | Zendy; Miaochan Liao | Zendy

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Preparation and properties of fast temperature-responsive soy protein/PNIPAAm IPN hydrogels

Author(s) -

Yong Liu,

Yingde Cui,

GuoJie Wu,

Miaochan Liao

Publication year - 2013

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc130219047l

Subject(s) - self healing hydrogels , swelling , differential scanning calorimetry , chemical engineering , materials science , thermal stability , thermogravimetric analysis , fourier transform infrared spectroscopy , polymer chemistry , gravimetric analysis , chemistry , composite material , organic chemistry , thermodynamics , physics , engineering

The interpenetrating polymer network of fast temperature-responsive hydrogels based on soy protein and poly(N-isopropylacrylamide) were successfully prepared using the sodium bicarbonate (NaHCO3) solutions as the reaction medium. The structure and properties of the hydrogels were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry and thermal gravimetric analysis. The swelling and deswelling kinetics were also investigated in detail. The results have shown that the proposed hydrogels had high porous structure, good miscibility and thermal stability, and fast temperature responsivity. The presence of NaHCO3 had little effect on the volume phase transition temperature (VPTT) of the hydrogels, and the VPTTs were at about 32°C. Compared with the traditional hydrogels, the proposed hydrogels had much faster swelling and deswelling rate. The swelling mechanism of the hydrogels was the non-Fickian diffusion. This fast temperature-responsive hydrogels may have potential applications in the field of biomedical materials

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