Nonlinear dynamics of melted polymer layers

A. N. Semenov, A. V. Subbotin, G. Hadziioannou, G. Ten Brinke, E. Manias, M. Doi

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

A theory for non-linear rheology of molten polymer layers between solid surfaces in the Rouse regime is discussed. It is shown that the effect of finite extensibility of polymer chains leads to the characteristic 1/3 power law for the shear stress vs. shear velocity in the regime of high velocities. It is also shown that bridging polymer fragments connecting the two surfaces play an important role for the rheology if the effective monomer friction in the immediate vicinity of the surfaces is much higher than far from the surfaces. In particular we predict that shear stress is decreasing with shear velocity u in a limited range between u1 and umin. This effect results in a possibility of stick-slip periodical dynamics of the layer under a constant imposed velocity.

Original languageEnglish (US)
Pages (from-to)175-186
Number of pages12
JournalMacromolecular Symposia
Volume121
DOIs
StatePublished - Aug 1997

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Nonlinear dynamics of melted polymer layers'. Together they form a unique fingerprint.

  • Cite this

    Semenov, A. N., Subbotin, A. V., Hadziioannou, G., Ten Brinke, G., Manias, E., & Doi, M. (1997). Nonlinear dynamics of melted polymer layers. Macromolecular Symposia, 121, 175-186. https://doi.org/10.1002/masy.19971210116