Microwave-Irradiated Preparation of Super Absorbent Resin by Graft Copolymerization of Cellulose and Acrylic Acid/Acrylamide

Jing Shu; Xiao Jing Li; Da Biao Zhao

doi:10.4028/www.scientific.net/AMR.148-149.799

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149Microwave-Irradiated Preparation of Super...

Microwave-Irradiated Preparation of Super Absorbent Resin by Graft Copolymerization of Cellulose and Acrylic Acid/Acrylamide

Abstract:

Graft copolymerization of acrylic acid(AA) and acrylamide(AM) on cellulose to prepare super absorbent resin (SAR) under microwave irradiation were investigated using N,N-methylene bis-acrylamide as crosslinking agent, and potassium persulfate/sodium thiosulfate as initiator. The results indicated that it only needed 5min under the microwave level of 320W to obtain the resin with the maximum absorption amount of 1388g•g-1 , under the conditions that the ratio of acrylic acid to cellulose of 14:1, 0.25wt% initiator to AA, 0.25wt% crosslinking agent, 70% neutralization degree of AA. Under microwave irradiation, the preparation of SAR could be completed without the protection of nitrogen. Compared to conventional heating method, the methods had the striking advantages of short reaction time, simple process and low cost.

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Periodical:

Advanced Materials Research (Volumes 148-149)

Pages:

799-802

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.148-149.799

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Online since:

October 2010

Authors:

Jing Shu, Xiao Jing Li, Da Biao Zhao

Keywords:

Acrylamide, Acrylic Acid (AA), Cellulose, Graft Copolymerisation, Microwave Irradiation, Super Absorbent Resin

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