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Grafting of Acrylamide onto Polysaccharides Blend Using Photo-initiators

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Abstract

The present paper comprises of hydrogel synthesis processes using a blend of three natural polysaccharides (PsB) “starch, chitosan and alginate” grafted acrylamide (PsB-g-Am) using ultraviolet (UV) irradiation. The grafting process has been undergo using three different photo-initiators [Dimethoxy-2-phenylacetophenone (DMPA), benzoin methyl ether (BME) and benzophenone (BP)]. Furthermore, different PsB/Am weight ratios have been used. The prepared hydrogel has been characterized using XRD and SEM. Grafting percentage (%G), grafting efficiency (%GE), grafting yield (%GY) also have been compared. Among the three used photo-initiators, DMPA gave the maximum attained values of %G (130 %), %GE (72 %) and %GY (89 %) followed by BME and BP, respectively. Swelling water ratio (SWR) for the grafted hydrogels in distilled water (DW) has been studied. Grafted hydrogel using DMPA photo-initiator gave the maximum SWR of 30 g/g. Am/PsB weight ratio and the used photo-initiator had a direct effect on SWR of the produced hydrogel.

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Correspondence to Marwa M. El-Sayed.

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El-Sayed, M.M., Sorour, M.H., Abd El Moneem, N. et al. Grafting of Acrylamide onto Polysaccharides Blend Using Photo-initiators. J Polym Environ 25, 402–407 (2017). https://doi.org/10.1007/s10924-016-0816-1

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