TY  - JOUR
UR  - http://dx.doi.org/10.1063/1.1903923
A1  - Morrison, Greg
A1  - Thirumalai, D.
JF  - Journal of Chemical Physics 
Y1  - 2005///
PB  - American Institute of Physics
VL  - 122
IS  - 19
AV  - public
SN  - 0021-9606
ID  - eprints1813
TI  - The shape of a flexible polymer in a cylindrical pore
N2  - 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.
ER  -