Logo eprints

The shape of a flexible polymer in a cylindrical pore

Morrison, Greg and Thirumalai, D. The shape of a flexible polymer in a cylindrical pore. Journal of Chemical Physics , 122 (19). p. 194907. ISSN 0021-9606 (2005)

PDF - Published Version
Download (84kB) | Preview


We calculate the mean end-to-end distance R of a self-avoiding polymer encapsulated in an infinitely long cylinder with radius D. A self-consistent perturbation theory is used to calculate R as a function of D for impenetrable hard walls and soft walls. In both cases, R obeys the predicted scaling behavior in the limit of large and small D. The crossover from the three-dimensional behavior (D→∞) to the fully stretched one-dimensional case (D→0) is nonmonotonic. The minimum value of R is found at D ∼ 0.46RF, where RF is the Flory radius of R at D→∞. The results for soft walls map onto the hard wall case with a larger cylinder radius.

Item Type: Article
Identification Number: 10.1063/1.1903923
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 03 Oct 2013 11:24
Last Modified: 04 Oct 2013 11:07
URI: http://eprints.imtlucca.it/id/eprint/1813

Actions (login required)

Edit Item Edit Item