Graft copolymers; hydrogel; swelling; thermogravimetric analysis Graft copolymers; hydrogel; swelling; thermogravimetric analysis

Synthesis, Characterization And Salt Resistance Swelling Behavior Of Psy-g-poly(AA) Hydrogel

Anjna Kumaria,d, Balbir Singh Kaithb, Amar Singh Singhaa, and Susheel Kaliac*

aDepartment of Chemistry, National Institute of Technology, Hamirpur 177005, HP, India

bDepartment of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India

cDepartment of Chemistry, Maharishi Markandeshwar University, Laddo, Sultanpur 173229, Solan, HP, India

dDepartment of Chemistry, Singhania University, Pacheri Bari 333515, Jhunjhunu (Raj.), India

Adv. Mater. Lett., 2010, 1 (2), pp 123-128

DOI: 10.5185/amlett.2010.6129

Publication Date (Web): Apr 08, 2012



Psyllium, a medicinally important natural polymer was functionalized with acrylic acid using FAS-H2O2 as redox initiator and glutaraldehyde as a crosslinker. Synthesized hydrogel was characterized with FTIR spectroscopy, SEM and TGA/DTA techniques to know their surface morphology and thermal stability. Salt resistant swelling behavior of synthesized hydrogel was studied in different salt solutions as a function of concentration of salt, temperature and pH. It was found that synthesized hydrogel showed maximum swelling (514.0 %) in NaCl solution followed by NH4Cl, MgCl2, CaCl2 and BaCl2 solution. Psy-g-poly(AA) hydrogel showed maximum swelling (863.49%) at 30 ºC in distilled water.


Graft copolymers, hydrogel, swelling, thermogravimetric analysis

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