New Polymeric Composite Materials, Chapter 7


Polyacrylamide Grafted Alginic Acid Copolymer Based Programmable Adhesive

Rahul Rahul, Priti Rani, Dipti Thakur, Gautam Sen, Dhaneshwar Mahto

In this study, aqueous microwave assisted methodology was utilized to synthesize alginic acid grafted polyacrylamide. The synthesis was optimized by varying acrylamide and ceric ammonium nitrate concentrations in order to get an optimum failure shear load. The structural, thermal and physicochemical changes of alginic acid and its graft copolymers were ascertained with the aid of scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), intrinsic viscosity measurement, number average molecular weight determination and elemental analysis (C, H, N & O). The applicability of the synthesized graft copolymer as programmable adhesive has been studied by fabricating a single lap joint of two wooden blocks using an aqueous paste of the graft copolymer as adhesive. After curing, the breaking point of the joint was determined using a universal testing machine (UTM).

Alginic Acid, Adhesive, Microwave Assisted Synthesis, Graft Copolymer

Published online 11/1/2016, 17 pages


Part of New Polymeric Composite Materials

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