• English
    • Türkçe
  • English 
    • English
    • Türkçe
  • Login
View Item 
  •   DSpace Home
  • Araştırma Çıktıları / WOS
  • Araştırma Çıktıları / WOS
  • View Item
  •   DSpace Home
  • Araştırma Çıktıları / WOS
  • Araştırma Çıktıları / WOS
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Measurement of oxygen diffusion in PS/PNIPAM films using fluorescence quenching

Thumbnail
View/Open
Measurement of oxygen diffusion in PS PNIPAM films using fluorescence quenching.pdf (672.0Kb)
Date
2015
Author
Yargı, Önder
Pekcan, Önder
Uğur, Şaziye
Abstract
The diffusion of oxygen into pyrene labelled polystyrene (PS) latex/poly(N-isopropylacrylamide) (PNIPAM) composite films (PS/PNIPAM) was studied based on PS content with the use of fluorescence quenching method. Fluorescence experiments were carried out on composite films containing pyrene as a sensor dye. The Stern-Volmer equation for fluorescence quenching is combined with Fick's law for diffusion to derive mathematical expressions. Diffusion coefficients (D) were produced and found to be decreased with increasing PS content. This decrease was explained with the formation of a tortuous path for diffusing gas molecules which extends the diffusion path of oxygen in the films. In addition at high PS content two different D values were obtained which were attributed to the existence of two different areas in the composite films.

Source

Plastics Rubber And Composites

Issue

5

Volume

44

Pages

189-196

URI

https://hdl.handle.net/20.500.12469/590
https://dx.doi.org/10.1179/1743289815Y.0000000010

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Araştırma Çıktıları / WOS [1518]
  • Biyoinformatik ve Genetik / Bioinformatics and Genetics [220]

Keywords

PS latex
PNIPAM latex
Fluorescence
Quenching
Oxygen
Diffusion
Composites
Films

Share


DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateBy AuthorsBy TitlesBy SubjectsBy TypesBy LanguagesBy DepartmentsBy PublishersBy KHAS AuthorsBy Access TypesThis CollectionBy Issue DateBy AuthorsBy TitlesBy SubjectsBy TypesBy LanguagesBy DepartmentsBy PublishersBy KHAS AuthorsBy Access Types

My Account

LoginRegister

Statistics

View Google Analytics Statistics

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV