In this research, a new superabsorbent copolymer was synthesized based on the tragacanth gum (TG) via graft polymerization of the acrylic acid onto the carboxymethyl tragacanth (CMT) in the aqueous solution. For this purpose firstly, the carboxymethyl tragacanth was synthesized by reaction of the tragacanth gum and the monochlroroacetic acid in basic conditions. Then the acrylic acid was grafted on the carboxymethyl tragacanth via free radical polymerization. The characterization of the products was carried out by FT-IR, TGA, and SEM analyses. The effects of reaction conditions such as different values of the initiator, monomer and crosslinking agent on water absorbency were investigated. Furthermore, the swelling behavior of the synthesized polymer was evaluated in normal saline, tap water, distilled water, at different pHs and in various degrees of neutralization of the acrylic acid. Finally, by studying the obtained results, optimum conditions for the copolymer with the highest swelling ratio were obtained.

在这项研究中，通过在水溶液中将丙烯酸接枝聚合到羧甲基黄aga胶（CMT）上，基于黄aga胶（TG）合成了一种新的超吸收性共聚物。为此，首先在碱性条件下通过黄aga胶与单氯乙酸的反应合成羧甲基黄aga胶。然后通过自由基聚合将丙烯酸接枝到羧甲基黄tr胶上。通过FT-IR，TGA和SEM分析对产物进行表征。研究了反应条件如引发剂，单体和交联剂的不同值对吸水率的影响。此外，在生理盐水，自来水，蒸馏水，在不同的pH值和不同程度的丙烯酸中和。最后，通过研究所得结果，获得了具有最高溶胀率的共聚物的最佳条件。