Renormalization group evaluation of the second virial coefficient of polydisperse polymer solutions

Abstract

2014 The second virial coefficient A2 for a mixture of two monodisperse polymers is studied by means of the renormalization group. It is found that the cross-term A12 has a finite limit if the segment number of one of the polymers tends to infinity. Such behaviour predicts a maximum of A2 in dependence on the relative composition of the polymers. The maximum resulting from our firstorder RG-calculation lies outside the molecular weight ratio investigated so far experimentally. J. Physique Lett. 46 (1985) L-1115 L-1122 ler DECEMBRE 1985, Classification Physics Abstracts 36.20 61.40K 82.70