Abstract
Semi-interpenetrating polymer network (IPN) composed of two polymers, namely natural rubber (NR) and polyacrylamide (PAAm) were prepared by crosslinking with glutaraldehyde. The NR/PAAm semi-IPN films were developed by varying the concentration of crosslinking agents and the polymer blend ratios. The impact of preparation parameters on the mechanical properties was studied. The semi-IPN was characterized by FTIR, DTG, TG and SEM. Swelling studies were done by using toluene as solvent. The kinetics and mechanism of swelling were investigated and the initial rate of swelling, swelling constant, swelling exponent, equilibrium swelling and diffusion coefficient were also determined.
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