Effects of confinement on the Tg of free-standing polymer films: Novel fluorescence studies

Soyoung Kim*, Connie B. Roth, John M Torkelson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of nanoscale confinement on the glass transition temperatures, Tgs, of freely standing polystyrene and poly(methyl methacrylate) films were determined by a novel fluorescence technique. We see significant Tg depressions in both systems indicating a strong effect of confinement with a major molecular weight dependence. We discuss the potential application of this technique for achieving the first characterization of the distribution of Tgs across free-standing films. These studies are important for understanding the Tg behavior of polymer membranes and nanostructured polymers used in microelectronics fabrication.

Original languageEnglish (US)
Title of host publication67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
Pages1845-1849
Number of pages5
Volume3
StatePublished - Nov 25 2009
Event67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 - Chicago, IL, United States
Duration: Jun 22 2009Jun 24 2009

Other

Other67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
CountryUnited States
CityChicago, IL
Period6/22/096/24/09

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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    Kim, S., Roth, C. B., & Torkelson, J. M. (2009). Effects of confinement on the Tg of free-standing polymer films: Novel fluorescence studies. In 67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 (Vol. 3, pp. 1845-1849)