Drag on a Tethered Chain Moving in a Polymer Melt

A. Ajdari , F. Brochard-Wyart , C. Gay , P.-G. de Gennes (1) , J. Viovy

1 LPMC - Laboratoire de Physique de la Matière Condensée

A chain of N monomers is attached to a small colloïdal particle, and is pulled (at a velocity V) inside a polymer melt (chemically identical, with P monomers per chain). The main parameter for this problem is the number X(V) of P chains entangled with the (N) chain. Earlier estimates of X are criticized, and a new form is proposed: at large N(N>N2e), we are led to a “Stokes” regime, X=N1/2, while at smaller N(N

Domaines: Articles anciens

A. Ajdari, F. Brochard-Wyart, C. Gay, P.-G. de Gennes, J. Viovy. Drag on a Tethered Chain Moving in a Polymer Melt. Journal de Physique II, 1995, 5 (4), pp.491-495. ⟨10.1051/jp2:1995145⟩. ⟨jpa-00248175⟩