Effect of rubbing-induced polymer chain alignment on adhesion and friction of glassy polystyrene surfaces

Melvina Leolukman, Seong H. Kim

Research output: Contribution to journalArticle

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The friction and adhesion properties of polystyrene surfaces are studied below the glass transition temperature by means of atomic force microscopy in argon. Even at a temperature far below the glass transition, the repeated sliding of a polystyrene bead tip on the non-cross-linked polystyrene surface causes significant reduction of friction and adhesion forces. There is no measurable wear of the polystyrene surface due to repeated sliding. These decreases are associated with the alignment of the outermost polymer segments induced by repeated rubbing. There are only little changes in friction and adhesion on the cross-linked polystyrene surface in which the covalent cross-linking prevents chain realignment.

Original languageEnglish (US)
Pages (from-to)682-685
Number of pages4
Issue number2
StatePublished - Jan 18 2005


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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