A study of interpenetration using fluorescence quenching of chromophore-labelled polymers

William H. Schwimmer*, John M. Torkelson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Fluorescence quenching was used to investigate the onset and extent of overlap and interpenetration in poly(vinyl methyl ether) (PVME) solutions using polystyrene with a dilute level of anthracene labelling (APS) as a probe. A low, constant concentration of APS was added to solutions varying in PVME concentration. The critical overlap concentration, c*, was taken to be the PVME concentration at which quenching of the probe anthracene-labelled polymer molecules commenced. Variations in probe molecular weight and concentration produced no significant changes in c* or in the rate of decrease in fluorescence intensity above c*, lending credibility to the idea that the APS is simply probing the PVME system. The values of c* [η] from these experiments were found to lie in the range of 0.87-1.7 which agrees with the results from previous studies. The sensitivity of this method to small differences in solvent quality for PVME was also investigated.

Original languageEnglish (US)
Pages (from-to)2257-2261
Number of pages5
Issue number13
StatePublished - Dec 1987


  • c*
  • fluorescence quenching
  • interpenetration
  • poly(vinyl methyl ether)
  • polystyrene

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


Dive into the research topics of 'A study of interpenetration using fluorescence quenching of chromophore-labelled polymers'. Together they form a unique fingerprint.

Cite this