Synthesis of a new superabsorbent copolymer Based on carboxymethylated polyvinyl alcohol

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 151

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شناسه ملی سند علمی:

ISOC27_475

تاریخ نمایه سازی: 19 اسفند 1399

چکیده مقاله:

Superabsorbent polymer (SAP) materials are hydrophilic crosslinked networks that can absorb large quantities of water or aqueous solutions and hold it even under pressure. They can uptake water many hundred times more than their dry weight.1 Synthetic, semi-synthetic, or natural polymers are used separately or in combination for the synthesis of superabsorbent polymers.2 In this research, a new superabsorbent copolymer 6 was synthesized based on the polyvinyl alcohol (PVA) 1. For this purpose, firstly, the carboxymethyl polyvinyl alcohol 3 was synthesized by reaction of the polyvinyl alcohol 1 and the monochlroroacetic acid 2 in basic conditions. Then the acrylic acid 4 was grafted on the carboxymethyl polyvinyl alcohol 3 via free radical polymerization in the presence of ethylene glycol dimethacrylate 5 as a crosslinking agent. This superabsorbent polymer 6 can uptake water approximately three hundred times more than its dry weight. The synthesized copolymers were characterized by spectroscopic methods.

نویسندگان

Laia Roohi

Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran

Peyman Najafi Moghadam

Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran

Karim Akbari Dilmaghani

Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran