New Nanoconfinement Effect on Glass Transition Temperature (Tg):
Multilayer Films of Different Polymers Result in 100 oC Tunability of Tg

 

confinement figure

14 nm thick polystyrene (PS) layer has its glass transition dynamics “slaved” to that of the bulk underlayer film.

confinement 2

 

S. Kim, C. Roth, R. Priestley and J. Torkelson

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The Materials Research Science and Engineering Center (MRSEC) is supported by the National Science Foundation under NSF Award Number DMR-0520513. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of the National Science Foundation.
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