Novel surface crosslinker for superabsorbent polymers based on Schiff base reaction

In this study, the Schiff base compound (E)-۲-(((۴-hydroxyphenyl)imino)methyl)phenol(HPIMP) is synthesized by reacting salicylaldehyde with para-aminophenol. The resultingdiphenol is converted into a bis(phenol-glycidyl ether) imine with epichlorohydrin to have anovel diglycidyl material (DGSB). The efficiency of this material to use as a surface crosslinkerfor superabsorbent (SAP) polymer is investigated. The results shows that (E)-۲-(((۴-hydroxyphenyl)imino)methyl)phenol glycidylether (DGSB) can successfully use as surfacecrosslinker for SAPs. Absorbency under load (AUL) and storage modulus of the modifiedSAPs is increased in comparison to intact SAP. AUL is increased in modified SAPs up to ۴۸%in comparison to unmodified SAPs.

کلیدواژه ها:

Schiff base ، Hydrogel ، Superabsorbent ، Absorbency under load ، Surfacecrosslinker ، Diglycidylether.