ON THE USE OF PHOSPHORESCENCE QUENCHING FOR DETERMINING PERMEABILITIES OF POLYMERIC FILMS TO GASES,

Abstract

By measuring the lifetime of the phosphorescence of an additive in a polymeric film as a function of the ambient pressure of a quenching gas, it is possible to calculate the permeability of the polymer to the quenching gas. The mathematical analysis is based upon the well-known steady-state diffusional quenching theory. From the oxygen quenching of the phosphorescence of naphthalene additive, a permeability of poly(methylmethacrylate) to oxygen of (1.1 plus or minus 0.2) x 0.0001 sq.cm./sec.mole/1/mm was calculated. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0671527

Entities

People

  • Peter F. Jones

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Films
  • Mathematical Analysis
  • Naphthalenes
  • Permeability
  • Phosphorescence
  • Polymeric Films
  • Polymers
  • Quenching
  • Steady State

Fields of Study

  • Materials science

Readers

  • Combustion science or combustion engineering.
  • Materials Science and Engineering.
  • Polymer Science and Technology