Publication Title

Physical Review Letters

Publication Date

5-30-2003

Document Type

Article

DOI

10.1103/PhysRevLett.90.215501

Keywords

Chain Molecules, Normal Alkanes, Surface, Diffraction, Interfaces

Disciplines

Physics

Abstract

In this paper, we show that a noncrystalline but ordered smectic-like phase exists above the bulk-melting temperature (T-m) at poly(n-alkyl acrylates)-air interface. The surface ordered phase is one monolayer thick and undergoes a sharp transition from order to disorder 10degreesC above T-m for n=22. The presence of a surface phase that does not exist in the bulk has important implications in the design of thermally responsive adhesives.

Comments

Copyright 2003 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevLett.90.215501.


Included in

Physics Commons

Share

COinS