The Effects of Initiator Content on Sago (Metroxylon Rottb.) Starch-G-PAN Hydrogel
This paper explores the effects of ammonium persuiphate (S-PANHs) content (1wt %-5wt %) to the properties of sago starch-graft-polyacrylonitrile hydrogels (S-PANH).S-PANHs were prepared via graft copolymerization of polyacrylonitrile (PAN) onto sago starch in the presence of ammonium persulphate (APS) as initiator and N,N-methylenebisacrylamide (MBA) as crosslinker.The percentage of water absorbency is observed to increase with increasing initiator content from 1wt% until reaching optimum point of 3 wt% APS.48.78 % water absorbency was recorded at 3 wt% APS sample.The morphology of the hydrogels from the micrographs captured via scanning electron microscope (SEM) revealed the existence of pores and matching with the results of percentage water absorbency.Fourier transform infrared (FTIR) spectroscopy proved that the grafting process had occurred in S-PANH.
polysaccharide biodegradable hydrogels sago starch water absorbency morphology
Nurizan Omar Zuraida Ahmad
Department of Manufacturing and Materials Engineering, Kulliyyah of Engineering,International Islamic University Malaysia, 50728 Gombak, Kuala Lumpur, Malaysia
国际会议
北京
英文
218-221
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）