A unified model for the structure of polymers in semidilute solution
1984; Elsevier BV; Volume: 25; Issue: 3 Linguagem: Inglês
10.1016/0032-3861(84)90292-1
ISSN1873-2291
Autores Tópico(s)Material Dynamics and Properties
ResumoA model is developed to analyse the concentration dependence of the range ξϱ of the monomer pair correlation function. In semidilute solution, three concentration regimes are found for semiflexible molecules and the crossover points between the various regimes are predicted in terms of the characteristic ratio of the chains in dilute solution and in terms of the Flory interaction parameter χ. A simple physical interpretation is given which explains the concentration dependence of ξϱ based on binary contacts initially and then ternary contacts at higher concentration. Temperature-concentration diagrams are developed for several common polymer-solvent systems.
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