Characterization and Swelling Properties of Copolymer Poly(N, Ndimethyl acrylamide -co-acrylic acid) and Homopolymer Poly(acrylic acid)

Document Type : Original Article

Authors

1 Satbayev University, Institute of Geology and Oil & Gas Business, Almaty, 050013, Kazakhstan.

2 A.B. Bekturov Institute of Chemical Sciences, Street Ualihanov 106, 050010, Almaty, Kazakhstan.

3 Laboratory of Advanced Materials and Technology, Kazakh-British Technical University, 59 Tole bi St., 050000, Almaty, Kazakhstan

4 Sh. Ualikhanov Kokshetau State University, 76 Abaya St, Kokshetau 020000, Kazakhstan

5 Satbayev University, Institute of Geology and Oil & Gas Business, Almaty, 050013, Kazakhstan

Abstract

This paper investigates the swelling properties of homopolymer and copolymer hydrogels. Copolymeric hydrogels based on N, N-dimethyl acrylamide and acrylic acid (poly(DMA-co-AAc) as well as homopolymer hydrogels based on acrylic acid (polyAAc) were synthesized by radical technique in aqueous solutions using ammonium persulfate as an initiator and N, N-methylene-bis-acrylamide as a crosslinking agent. The properties of hydrogels examined including scanning electron microscopy (SEM) and FT-IR. The results indicate that the poly(DMA-co-AAc) copolymer has a high swelling ability in an aqueous solution. The swelling of hydrogels were achieved a maximum degree and diameter of 270 and 63mm in water, respectively. The swelling behavior of these hydrogels was investigated to determine function of the effect of pH and polymeric compositions.

Keywords

Main Subjects