Small molecule desorption from a swelling polymeric glass in polymer solution: Energy transfer method


Ugur S., Pekcan O.

MATERIALS CHEMISTRY AND PHYSICS, vol.92, no.1, pp.269-273, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1016/j.matchemphys.2005.01.029
  • Title of Journal : MATERIALS CHEMISTRY AND PHYSICS
  • Page Numbers: pp.269-273

Abstract

Direct energy transfer (DET) method conjunction with fast transient fluorescence (FTRF) technique were used to study small molecule desorption from a swelling poly(methyl methacrylate) (PMMA) glass in polymer solution, which is consist of naphthalene (N)-labeled PMMA chains in chlorofrom-heptane mixture. Desorption coefficients, D-d of pyrene (P) desorbing from the swelling PMMA glass prior to dissolution were measured and found to be 8.3 x 10(-8) and 1.3 x 10(-5) cm(2) s(-1) in short and long time regions, respectively. (c) 2005 Elsevier B.V. All rights reserved.