3 years ago

Interdiffusion in Polymeric Multilayer Systems Studied by Inverse Micro-Raman Spectroscopy

Interdiffusion in Polymeric Multilayer Systems Studied by Inverse Micro-Raman Spectroscopy
David K. Siebel, Sebastian M. Raupp, Paul G. Kitz, W. Schabel, P. Scharfer
Interdiffusion is likely to occur if two miscible polymeric films are in contact with each other in the presence of a solvent. This is e.g. relevant for the production of organic light-emitting diodes (OLEDs). Interdiffusion in OLED multilayer stacks has a great influence on the device performance. Yet, there is no study monitoring these interdiffusion processes. This is essential to gain fundamental knowledge about the predominant parameters influencing mass transfer between the present solids. In this work we demonstrate the application of inverse micro-Raman spectroscopy (IMRS) for in situ measurement of interdiffusion in polymeric multilayer systems. Interdiffusion only occurs in miscible systems, whereas no intermixing of the polymers occurs in immiscible systems. Given a miscible system, the average solvent content was found to be more important than the molecular weight of the polymers for the interdiffusion kinetics.

Publisher URL: http://dx.doi.org/10.1021/acs.macromol.7b01037

DOI: 10.1021/acs.macromol.7b01037

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.