Keywords Sodium alginate · Ethylene glycol · Thiazine dye · Swelling · pH-sensitive · Adsorption Extended author information available on the last page of the article Vol.:(0123456789) 1 3 3774 Journal of Polymers and the Environment (2018) 26:3773–3784 hexane, dioxane, dichloromethane, dimethylformamide Introduction and ethanol). As the persistent solvents are complicated to reprocess and their disposition is very expensive [19–25]. Hydrogels are highly cross-linked hydrophilic polymers The utilization of crosslinkers in the synthesis of hydro- that imbibed large amount of fluids within the three gels found to be limited in the environmental and medical dimensional network structures. The cross-linked poly- applications because of toxicity [26, 27]. A good poly- mer has the ability to absorb water hundreds of times of meric adsorbent must ensure the desorption and reusability their dry weight . Ionizable acidic or basic functional in a successive cycle . As aforementioned research groups are present in the polymer backbone triggered the groups did not report any pH-responsive biopolymeric pH sensitivity and water retention character due to the hydrogel without using crosslinkers. Hence, the present presence of functional groups such as carboxylic acid, work is focused on the preparation of sodium alginate sulfonic acid and amine . Sodium alginate (SA) is a
Journal of Polymers and the Environment – Springer Journals
Published: May 30, 2018
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