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

Ugur S., Pekcan O.

MATERIALS CHEMISTRY AND PHYSICS, cilt.92, sa.1, ss.269-273, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 92 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.matchemphys.2005.01.029
  • Dergi Adı: MATERIALS CHEMISTRY AND PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.269-273
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

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.