Novel nanobubble inflation method for determining the viscoelastic properties of ultrathin polymer films

P. A. O'Connell, G. B. McKenna

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

We describe a novel experimental technique for measuring the viscoelastic properties of ultrathin polymer films. The method is based on the classic bubble inflation technique for measuring the biaxial creep compliance of films, reduced in size to measure films with thicknesses down to at least 13 nm. The method uses the imaging capabilities of the atomic force microscope to determine the time evolution of the geometry of nanobubbles. Using these data, along with the applied pressure, the absolute creep compliance of the films can be determined.

Original languageEnglish
Article number013901
JournalReview of Scientific Instruments
Volume78
Issue number1
DOIs
StatePublished - 2007

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