Issue |
J. Phys. II France
Volume 3, Number 8, August 1993
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Page(s) | 1171 - 1177 | |
DOI | https://doi.org/10.1051/jp2:1993189 |
DOI: 10.1051/jp2:1993189
J. Phys. II France 3 (1993) 1171-1177
TCM Group, Cavendish Laboratory, Madingley Road, Cambrdige CB3 0HE, U.K.
64.60C - 05.40
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 1171-1177
Remarks on the dynamics of random copolymers
J.P. Bouchaud and M.E. CatesTCM Group, Cavendish Laboratory, Madingley Road, Cambrdige CB3 0HE, U.K.
(Received 7 May 1993, accepted 15 June 1993)
Abstract
We discuss the dynamics of random AB copolymers, and show that a glassy, quasi-frozen phase is reached as soon as
(where
N is the number of monomers,
the entanglement length and
the Flory interaction parameter). This criterion is satisfied for much smaller
than the value for which segregation occurs:
. The relaxation time of weakly disordered chains is furthermore found to take the empirical form
, where
can reach significant values for certain choices of
and the fraction of B-monomers.
64.60C - 05.40
© Les Editions de Physique 1993