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, cilt.59, sa.2, ss.277-285, 1996 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 59 Konu: 2
  • Basım Tarihi: 1996
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Sayfa Sayıları: ss.277-285

Özet

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.