M2 Reptation (De Gennes / Doi-Edwards Theory)

Title

Above M_e (E3), the chain becomes confined in a "tube" formed by the intertwined neighboring chains and can only diffuse by meandering along its own contour the mechanism that explains why the viscosity of a melt scales as M_w^3.4, not linearly with M_w.

ID:4479

gphysics.net - Dr. Willy H. Gerber
Palos Verdes, Costa de Corral, Chile