Nanomechanical properties of ultrathin polymers

Shanhong Xu, Paul A.O. 'Connell, Gregory B. McKenna

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have developed a novel microbubble inflation method to measure the viscoelastic properties of ultrathin polymer films over a range of stresses and temperatures. The method is capable of measuring the biaxial creep compliance response of films as thin as 13 nm. We summarize some prior experiments that show a dramatic stiffening of both polyvinyl acetate) (PVAc) and polystyrene (PS) in the rubbery regime at the reduced thickness but a material specific degree of reduction in the glass transition temperature. In addition, we show preliminary results of creep recovery experiments and thin film rupture images that suggest that the method can be used for a broader range of mechanical measurements than originally anticipated.

Original languageEnglish
Title of host publicationSociety of Plastics Engineers Annual Technical Conference
Subtitle of host publicationPlastics Encounter at ANTEC 2007, Conference Proceedings
Pages138-142
Number of pages5
StatePublished - 2007
EventSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007 - Cincinnati, OH, United States
Duration: May 6 2007May 11 2007

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume1

Conference

ConferenceSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
Country/TerritoryUnited States
CityCincinnati, OH
Period05/6/0705/11/07

Keywords

  • Compliance
  • Glass transition
  • Nano bubble inflation
  • Thin film

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