Dongjian Shi, Yan Gao, Lin Sun, and Mingqing Chen*
The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material
Engineering, Jiangnan University, 214122 Wuxi, China
*e-mail: mqchen@jiangnan.edu.cn
Received March 2, 2013;
Revised Manuscript Received July 25, 2013
Abstract—Poly(acrylamide-co-itaconic acid) (P(AM-co-IA)) hydrogel microspheres were prepared via
inverse suspension polymerization method. DLS results showed the formation of the monodispersed hydrogel
microspheres. The size of the hydrogel microspheres could be controlled by polymerization parameters. Absor-
bencies of P(AM-co-IA) microspheres in water and saline were investigated and calculated by size changes of
each particle before and after swelling. The results showed that P(AM-co-IA) had high absorbencies, the weight
of swollen particles was above 4000 times to that of the original dried microspheres. The superabsorbent hydro-
gel microspheres might find the potential applications in the fields of soil amendments, water shutoff agents,
and drug delivery carriers.
DOI: 10.1134/S0965545X14030146
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