000			01369nam a2200169Ia 4500
008			220216s9999 xx 000 0 und d
100			_aUnnikrishnan G
245		0	_aMolecular transport of benzene and methyl-substituted benzenes into filled natural rubber sheets
260			_bJournal of Applied Polymer Science _c1996
300			_a963-970
520			_aSorption and diffusion of benzene and methyl-substituted benzenes were investigated through natural rubber reinforced with four types of carbon black : superabrasion furnace, intermediate superabrasion furnace, high-abrasion furnace and semi-reinforcing furnace. The rubber loaded with superabrasion furnace took the lowest amount of solvents among all the samples. It was observed that the mechanism of transport deviates from the normal Fickian trend with a decrease in particle size of the fillers. The diffusion coefficients were determined considering the changes in thickness as well as the diameter of the natural rubber samples. From the temperature dependence of diffusivity, the activation energy for the diffusion process was computed. The sorption data were used to estimate the rubber solvent interaction parameter, enthalpy and entropy of the sorption process.
650			_aBenzene
650			_aMethyl-substitued benzene
650			_aNatural rubber
700			_aThomas Sabu
942			_cJS
999			_c63224 _d63224