| || Nitration of Polystyrene Part I Effect of Molecular Weight of Polymer on Nitration
Author : Bajaj, I.;Chatterjee, S.R.
Source : Defence Science Journal ; Vol:17(1) ; 1967 ; pp 45-48
Subject : 54 Chemistry
Keywords : Monomeric Unit;Polymer Chain
Abstract : Polystyrene in the molecular weight range, 3.67*10/Sup4 to 47.86*10/Sup10 has been nitrated in fuming nitric acid at 50 Degree C and degree of substitution of nitro group per monomeric unit in the polymer chains varying from 1.03 to 1.11 has been obtained. Molecular weight of the initial polymers have been found no appreciable effect on the degree of substitution. Degradation of the polymer chain is, however, found to be more pronounced in high molecular weight polymers.