Theory of semi-dilute polymer solutions. II. Correlation functions in a good solvent

Abstract

For pt.I see ibid., vol.16, no.17, p.4155-70 (1983). The authors study the static correlations of monomer density fluctuations in semi-dilute polymer solutions in a good solvent. By means of the conformation space renormalisation theory, the universal scaling form of the scattering functions is obtained up to order epsilon =(4-d) with d the dimensionality of space. In a dilute limit agreement with the experiment is improved over the mean field theory. The correlation length and the osmotic compressibility obtained previously are also compared with the recent light scattering experiment. These theoretical results exhibit a very good agreement with the experimental observation without any adjustable parameters.