Structure and properties of semi-interpenetrating network hydrogel based on starch.
Starch-g-P(acrylic acid-co-acrylamide)/PVA semi-interpenetrating network (semi-IPN) hydrogels were prepared by aqueous solution polymerization method. Starch grafting copolymerization reaction, semi-IPN structure and crystal morphology were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The PVA in the form of partial crystallization distributing in the gel matrix uniformly were observed by Field emission scanning electron microscope (FESEM). The space network structure, finer microstructure and pore size in the interior of hydrogel were presented by biomicroscope. The results demonstrated that absorption ratio of water and salt generated different degree changes with the effect of PVA. In addition, the mechanical strength of hydrogel was improved.
Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China. Electronic address: mrzhubd@126.com.
Baodong
B
Zhu
Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
Dongzhuo
D
Ma
Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
Jian
J
Wang
Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
Shuang
S
Zhang
Acrylamide (PubChem CID: 6579); Acrylic acid (PubChem CID: 6581); Biomicroscope; Hydrogel; Microstructure; N,N′-Methylene-bis-acrylamide (PubChem CID: 8041); Polyvinyl alcohol; Polyvinyl alcohol (PubChem CID: 11199); Potassium persulfate (PubChem CID: 24412); Potato starch (PubChem CID: 439341); Property; Semi-IPN; Sodium hydroxide (PubChem CID: 14798)