DEPENDENCE OF INTRINSIC VISCOSITY ON TACTICITY OF POLYSTYRENE CHAINS

Using the configurational\|conformational statistics and the rotational isomeric state theory,the formula of the configurational\|conformational parameter(characteristic ratio) S\+2/M is derived.The intrinsic viscosity depended on the molecular weight of polystyrene chains is estimated by the formula,and the intrinsic viscosity of isotactic,syndiotactic and atactic polystyrene chains with high molecular weight is compared by the percentages of meso dyads,or the tacticity of chain.The results are in agreement with the experimental data.