Direct fluorescence technique to study evolution in transparency and crossing density at polymer-polymer interface during film formation from high-T latex particles

Pekcan O., Canpolat M.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.59, no.2, pp.277-285, 1996 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 2
  • Publication Date: 1996
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.277-285
  • Istanbul Technical University Affiliated: No


The Direct Fluorescence method was used to study the healing process during latex film formation above the glass transition temperature. The latex film was prepared from pyrene (P)-labeled poly(methyl methacrylate) (PMMA) particles. Heptane was used as a mixing agent. The steady-state fluorescence technique was employed to measure the density of polymer chains crossing the particle-particle interface. Various latex films with different latex content were used to study the transparency below and above the healing temperature. Crossing density was found to depend linearly on (time)(1/2), which was proposed by Prager and Tirrell. (C) 1996 John Wiley & Sons, Inc.