Effects of nanoscale confinement of polymers in films and nanocomposites: Tuning the glass transition by 100 K and diffusion coefficients by an order of magnitude

Connie B. Roth, Manish K. Mundra, Rodney D. Priestley, Soyoung Kim, Sheldon K. Hewlett, John M Torkelson

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

Abstract

Bilayer and trilayer polymer films are characterized by fluorescence techniques sensitive to glass transition temperature, physical aging, and diffusion. We show that the glass transition temperature (Tg) of 14-nm-thick polystyrene (PS) layers can be strongly coupled to that of bulk underlayer films of different polymers, allowing its Tg to be varied from 318 K to 418 K. We also show that the translational diffusion coefficient of small dye molecules within PS can decrease as much as an order of magnitude with confinement.

Original languageEnglish (US)
Title of host publicationSociety of Plastics Engineers - 66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008
Pages1663-1667
Number of pages5
Volume3
StatePublished - Sep 29 2008
Event66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008 - Milwaukee, WI, United States
Duration: May 4 2008May 8 2008

Other

Other66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008
CountryUnited States
CityMilwaukee, WI
Period5/4/085/8/08

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Materials Chemistry
  • Polymers and Plastics

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    Roth, C. B., Mundra, M. K., Priestley, R. D., Kim, S., Hewlett, S. K., & Torkelson, J. M. (2008). Effects of nanoscale confinement of polymers in films and nanocomposites: Tuning the glass transition by 100 K and diffusion coefficients by an order of magnitude. In Society of Plastics Engineers - 66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008 (Vol. 3, pp. 1663-1667)