Solution-free methods for the determination of the molecular-mass distribution of polymers

Methods for the estimation of the molecular-mass distribution of block poly mers known to date are considered. The methods are based on the analysis of the curve of the how of melts, the frequency dependence of the relaxation modules, the shape of the curve of the free induction decay (the method of pulse nuclear magnetic resonance) and the temperature dependence of complia nce in the region of high-elasticity plateau (thermomechanical analysis).