INVERTED KLAFTER-BLUMEN EQUATION FOR FRACTAL ANALYSIS IN PARTICLES WITH INTERPENETRATING NETWORK MORPHOLOGY


PEKCAN O.

CHEMICAL PHYSICS LETTERS, vol.198, pp.20-24, 1992 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 198
  • Publication Date: 1992
  • Doi Number: 10.1016/0009-2614(92)90042-l
  • Title of Journal : CHEMICAL PHYSICS LETTERS
  • Page Numbers: pp.20-24

Abstract

Fluorescence decay curves from particles composed of poly(vinyl acetate) (PVA(c)) and naphthalene (N) labelled poly(2-ethylhexyl methacrylate) (PEHMA) were fitted to the Klafter-Blumen (KB) model for energy transfer from N to anthracene. An apparent dimension of d = 2.0 was observed. The exponential series method analysis was used to "partition" the apparent dimensions to two distinct dimensions of d = 3 and d = 1.26. The Laplace-transformed KB equation for the lifetime distribution was used to interpret these dimensions in terms of a crossover in the thread-like PEHMA network in PVA(c) particles.