Tube width fluctuations of entangled stiff polymers
arXiv:1011.5980 · doi:10.1103/PhysRevE.84.051801
Abstract
The tube-like cages of stiff polymers in entangled solutions have been shown to exhibit characteristic spatial heterogeneities. We explain these observations by a systematic theory generalizing previous work by D. Morse (Phys. Rev. E 63:031502, 2001). With a local version of the binary collision approximation (BCA), the distribution of confinement strengths is calculated, and the magnitude and the distribution function of tube radius fluctuations are predicted. Our main result is a unique scaling function for the tube radius distribution, in good agreement with experimental and simulation data.
Major revision (8 pages, 5 figures)
References in corpus (9)
- Dynamics of semi-flexible polymer solutions in the highly entangled regime
- Quantitative Tube Model for Semiflexible Polymer Solutions
- Semi-classical buckling of stiff polymers
- Tube Width Fluctuations in F-Actin Solutions
- Tension dynamics in semiflexible polymers. Part II: Scaling solutions and applications
- Chain motion and viscoelasticity in highly entangled solutions of semiflexible rods
- Tension dynamics and viscoelasticity of extensible wormlike chains
- Direct observation of the tube model in F-actin solutions
- Elasticity of Stiff Biopolymers