Dilute Solution Properties of Nonlinear Semiflexible Polymers: Crossover from the Rigid Chain to the Random Coil

作者：Ida Daichi^*

来源：Kobunshi Ronbunshu, 2015, 72(9): 529-538.

DOI：10.1295/koron.2015-0013

There are briefly summarized our recent theoretical and/or Monte Carlo studies of dilute solution properties of semiflexible stars and rings on the basis of the Kratky-Porod (KP) wormlike chain model. For the regular three-arm KP stars, effects of chain stiffness on the intrinsic viscosity [eta], translational diffusion coefficient (effective hydrodynamic radius), and second virial coefficient A2 in a good solvent are examined as functions of the reduced contour length lambda L, where lambda(-1) is the stiffness parameter and L is the total contour length. A similar examination is also done for [eta] of the regular four-arm KP stars. For the KP rings, effects of the topological constraint in addition to the chain stiffness on the mean-square radius of gyration, [eta], and scattering function are examined. Further, the results for A(2) of the ideal KP rings, which is related to the intermolecular topological interactions, are presented and then compared with the data in the literature for ring atactic polystyrene at Theta for large molecular weight.

• 出版日期2015