Determination of the Intrinsic Viscosity and Molecular Weight of Poly(methyl methacrylate) Blends

Abstract

PMMA blends weresynthesized through atom transfer radical polymerization (ATRP) method under atdifferent concentration ratios. The viscosity characteristics of the structurewere investigated to determine the behaviour of macromolecules in blends. The viscositycharacterization of the nanoparticles was determined to explain the molecularstructure and interactions. The intrinsic viscosity of the blend was calculatedwith three different models including Huggins, Kraemer, and Rao. All blendswere performed to understand the effect of additives concentration on molecularconformations and the intrinsic viscosity of the polymers. The voluminosity (VE)and the shape factor (υ) were calculated for the blends to understand themiscibility behaviour. From experimental results, it was observed that theintrinsic viscosity was increased with the increase in the amount of substanceand the solubility of the system in solution.