INJECTION THRESHOLD FOR A STAR POLYMER INSIDE A NANOPORE

Authors
BROCHARDWYART F DEGENNES PG
Citation
F. Brochardwyart et Pg. Degennes, INJECTION THRESHOLD FOR A STAR POLYMER INSIDE A NANOPORE, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 323(7), 1996, pp. 473-479
Citations number
10
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
323
Issue
7
Year of publication
1996
Pages
473 - 479
Database
ISI
SICI code
1251-8069(1996)323:7<473:ITFASP>2.0.ZU;2-U
Abstract
A linear, flexible polymer (in dilute solution with a good solvent) en ters a pore (of diameter D smaller than its gyration radius R) only wh en the suction flux J is larger than a threshold value J(cl) congruent to kT/eta (T: temperature; eta: solvent viscosity). We discuss here t he case of an f arm star polymer (f >> 1). The results suggest that pe rmeation through nanopores may provide an interesting characterization of mixtures containing linear and branched polymers with the same ove rall molecular weight.