ESR STUDIES OF MOLECULAR MOTIONS AT THE INTERPHASE REGION OF A BLENDLIKE POLYMERIC MATERIAL


PEKCAN O., DEMIR Y., GUVEN O.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.52, ss.1539-1547, 1994 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 52 Konu: 11
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1002/app.1994.070521102
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Sayfa Sayıları: ss.1539-1547

Özet

The molecular motions of spin probes at the interphase region of poly (methyl methacrylate) particles sterically stabilized by polyisobutylene (PIB) were studied by ESR spectroscopy. The correlation times (tau) were measured by using the methods of Freed and Kivelson. Activation energies for different modes of motion were calculated at wide temperature range between -140 and 140-degrees-C. Viscosities were estimated in methanol saturated PIB channels in the polymer particles. (C) 1994 John Wiley & Sons, Inc.