Interpenetrating polymer networks were prepared from Castor oil, toluene 2,4-diisocyanate and MMA with N,N-methylene bis acrylamide. The expected course of reaction and structural analysis of such polymers were investigated by FTIR spectroscopy. All these IPNs films were characterised by resistance to chemical reagents, swelling behavior, mechanical studies such as tensile strength, Young’s modulus, elongation at break (%). Thermal stability behavior of the polymer degradation was studied by thermogravimetric analysis (TGA), and differential thermal analysis (DTA). The effect of variation of NCO/OH molar ratio and PU/MMA weight ratio on the thermal stability was studied.
Rathika K and Begila David S, 2016. International Journal of Current Science and Technology. Synthesis and characterisation of castor oil based polyurethane-methyl methacrylate interpenetrating polymer networks. Vol.4, Issue, 11, pp. 281-285