New class of dynamics in concentrated polymer gels
Journal article, 2007

We show that concentrated poly(methyl methacrylate) solution exhibits a new class of coupled dynamics, which can be regarded as an intermediate between the collective diffusion of solutions and the structural relaxations of glasses. This class of dynamics have a relaxation rate that is directly proportional to the wave vector. The transition from diffusive to coupled collective dynamics occurs at smaller length scales with increasing polymer concentration and decreasing temperature. The experimental observations can be understood by considering the contributions from physical cross-links interconnected by stiff polymer segments. © 2007 American Institute of Physics.

Author

Christer Svanberg

Chalmers, Applied Physics, Condensed Matter Physics

Takashi Uematsu

Chalmers, Applied Physics, Condensed Matter Physics

Peter Berntsen

Chalmers, Applied Physics, Condensed Matter Physics

Per Jacobsson

Chalmers, Applied Physics, Condensed Matter Physics

Journal of Chemical Physics

0021-9606 (ISSN) 1089-7690 (eISSN)

Vol. 126 5 Art. No. 051103-

Subject Categories

Condensed Matter Physics

DOI

10.1063/1.2432884

More information

Created

10/7/2017