Dynamics of associating polymers with random structureA. N. Semenov
Institut Charles Sadron - 6 rue Boussingault, 67083 Strasbourg Cedex, France
received 14 June 2006; accepted in final form 25 October 2006
published online 23 November 2006
Solution dynamics of associating polymer chains with many randomly distributed strongly interacting groups (stickers) are considered theoretically. The stickers tend to associate pairwise, and the polymer backbone is semirigid and soluble. It is shown that there exists a finite concentration range where the polymers form a reversible network with a virtually frozen structure: in this regime both the stress relaxation time and the viscosity exponentially increase with N and with c.
61.25.Hq - Macromolecular and polymer solutions; polymer melts; swelling.
83.80.Kn - Physical gels and microgels.
83.80.Qr - Surfactant and micellar systems, associated polymers.
© EDP Sciences 2006