Thermomechanical formation and recovery of nanoindents in a shape memory polymer studied using a heated tip.

Journal Article (Journal Article)

This paper investigates the thermomechanical formation and recovery of nanometer-scale indents in a shape memory polymer (SMP), studied using a heated atomic force microscope (AFM) tip and hot-stage atomic force microscopy. The material tested is a tert-butyl acrylate (tBA)-based polymer, which has a glass transition temperature of 60 degrees C. The AFM tip forms indents in the polymer in the temperature range 25-250 degrees C. The shape recovery of the indents is studied while the polymer is heated up to 100 degrees C. The temperature required for complete annealing of the indents depends upon the indentation formation conditions, with higher temperature formation corresponding to higher temperature recovery.

Full Text

Duke Authors

Cited Authors

  • Yang, F; Wornyo, E; Gall, K; King, WP

Published Date

  • March 2008

Published In

Volume / Issue

  • 30 / 2

Start / End Page

  • 197 - 202

PubMed ID

  • 17987641

Electronic International Standard Serial Number (EISSN)

  • 1932-8745

International Standard Serial Number (ISSN)

  • 0161-0457

Digital Object Identifier (DOI)

  • 10.1002/sca.20074


  • eng