The Benoit model for beta 1-4 glucans is considered taking into account int
rachain hydrogen bonds. This model is basis for calculation of equilibrium
rigidity of chains with completely free rotation. Analysis of the experimen
tal Value of equilibrium rigidity is carried out and the fraction of hinge
C(1)OC(4) bonds about which rotation is free is evaluated. (C) 1998 Elsevie
r Science Ltd. All rights reserved.