Ammonium persulfate-initiated graft copolymerization of methacrylamide onto chitosan: synthesis, characterization and optimization

Zetty Azalea Sutirman, and Mohd Marsin Sanagi, and Ahmedy Abu Naim, and Khairil Juhanni Abd Karim, and Wan Aini Wan Ibrahim, (2017) Ammonium persulfate-initiated graft copolymerization of methacrylamide onto chitosan: synthesis, characterization and optimization. Sains Malaysiana, 46 (12). pp. 2433-2440. ISSN 0126-6039

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Official URL: http://www.ukm.my/jsm/english_journals/vol46num12_...

Abstract

Ammonium persulfate (APS)-initiated grafting of methacrylamide (MAM) onto chitosan was successfully prepared for the first time by free radical mechanism. Both chitosan and chitosan-graft-poly(methacrylamide) (chitosan-g-PMAM) were characterized using Fourier transform infrared spectroscopy (FTIR), solid state 13C NMR, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). Important factors affecting graft copolymerization such as reaction time, temperature and concentrations of APS, MAM and chitosan were investigated and optimized to obtain maximum grafting parameters. The optimum values for grafting percentage and yield of graft copolymerization were achieved under the following conditions: chitosan (1 g), MAM (4 g), APS (0.6 g), time reaction (4 h) and temperature (70ºC).

Item Type:Article
Keywords:Ammonium persulfate; Chitosan; Free radical; Graft copolymerization; Methacrylamide
Journal:Sains Malaysiana
ID Code:11711
Deposited By: ms aida -
Deposited On:23 May 2018 04:47
Last Modified:30 May 2018 00:05

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