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Citation: GAO Jin-Zhang, WANG You-Di, WANG Ai-Xiang, WANG Yu-Jing, LI Yan, FU Yan, WU Jian-Lin. Synthesis of Starch-Graft-Acrylic Acid Superabsorbing Resin Using Contact Glow Discharge Electrolysis Plasma[J]. Chinese Journal of Applied Chemistry, ;2009, 26(3): 282-286. shu

Synthesis of Starch-Graft-Acrylic Acid Superabsorbing Resin Using Contact Glow Discharge Electrolysis Plasma

1.
College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070

Corresponding author: GAO Jin-Zhang,
Received Date: 26 March 2008
Available Online: 27 June 2008
Fund Project: 教育部重点科技项目基金(00250) (00250)甘肃省自然科学基金(3ZS041-A25-028) (3ZS041-A25-028)西北师范大学科技创新工程项目基金(NWNU-KJCXGC-01)资助项目 (NWNU-KJCXGC-01)

Graft polymerization of acrylic acid on starch was carried out via contact glow discharge electrolysis plasma(CGDE),and the product was characterized by Fourier transform infrared spectroscopy(FTIR),thermogravimetric analysis(TGA) and scanning electron microscopy(SEM).Five important factors for the graft polymerization were examined.For the contact glow discharge electrolysis plasma,the discharge time and the discharge power were also studied.At a discharge power of 12.8 W and a discharge time of 12 min,the optimum reaction conditions were obtained,namely,the ratio of acrylic acid to starch,the amount of crosslinking agent,reaction temperature,reaction time and neutralization of acrylic acid were 2:1,0.6%,70 ℃,3 h and 85%,respectively.A satisfactory starch-graft-acrylic acid superabsorbing resin with a graft percentage of 47% and a high absorbency(765 g/g in distilled water,81 g/g in 0.9% NaCl solution) was prepared successfully.
- contact glow discharge electrolysis plasma,
- superabsorbing resin,
- starch,
- acrylic acid
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