Synthesis and Properties of Poly(sodium 2-acrylamido-2-methypropane sulfonate) Hydrogel Sheets and Effect of Adding Gelatinized Cassava Starch

Authors

  • Potjanee Thongpo
  • Pimpanitpa Kuntadong
  • Robert Molloy
  • Ratthaphat Bunkerd Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Rachasima

Abstract

Hydrogel blends of poly(sodium 2-acrylamido-2-methylpropane sulfonate), P(Na- AMPS), and gelatinized cassava starch were synthesized and characterized. P(Na-AMPS) was synthesized by photopolymerization under UV-irradiation in aqueous solution using  0.1 mole %of 4,4'-azo-bis-(4-cyanopentanoic acid) as photoinitiator and 1 mole % of N,N’-methylene-bis-acrylamide (NMBA) as crosslinking agent. The P(Na-AMPS) was then blended with gelatinized cassava starch in various v/v % ratios of 100:0, 97:3, 95:5  and 90:10 or w/w ratios of 100:0, 97:0.15,  95:0.25 and  90:0.50. Characterization was carried out by means of FT-IR and TGA. Polymerization was confirmed by the disappearance of the C=C peaks of the Na-AMPS monomer at 1417 and 950 cm-1 in the FT-IR spectrum. Subsequent testing of the hydrogel blends showed that the best combination of  water content, water retention and mechanical properties were obtained in the case of the 95:5 % v/v blend.  Keywords : hydrogel, gelatinized cassava starch, poly(sodium 2- acrylamido-2-methylpropane sulfonate),          UV-irradiation, photoinitiation

Author Biography

Ratthaphat Bunkerd, Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Rachasima

I am a lecturer at Program of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, ThailandEDUCATION2012 - Present: PhD student, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, ThailandThesis Title:        Preparation, Characterization and Properties of Biodegradable Polymer Blends Based on Poly(lactic acid) and Chemically-Modified Cassava Starch 2004 - 2007:       M.S. in Chemistry, Chiang Mai University, Chiang Mai, ThailandThesis Title:        Synthesis and Fibre Processing of Biodegradable Polyesters for Use as Absorbable Monofilament Surgical Sutures 2000 - 2004:       B.S. in Chemistry, Maejo University, Chiang Mai, Thailand PROFESSIONAL EXPERIENCE2008 - Present: Lecturer, Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Rachasima, Thailand2005 – 2008:      Research Assistant, Biomedical Polymers Technology Unit, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand  

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Published

2018-07-24

Issue

Burapha Science Journal Volume 23 (No. 2) May-August 2018

Section

Research Article