INTEMA 05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
artículos
Título:
Effects of length fluctuations on the viscosity exponent in the necklace model
Autor/es:
C M ALDAO, G R TERRANOVA, H O MÁRTIN
Revista:
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2009 vol. 42 p. 165005 - 165005
ISSN:
1751-8113
Resumen:
It is commonly accepted that contour length fluctuations increase the viscosity
exponent for chains that diffuse by reptation. We found that length fluctuations
in the necklace model can play an unexpected role as they can also decrease this
exponent. A detailed analysis of the interplay between the discrete character
of the model and how the fluctuations take place is presented in this work.
Basically, we found that when fluctuations are symmetric their influence is the
expected one; when fluctuations are not symmetric new effects can appear.
