Whitepapers/App Notes/Posters

Whitepaper: Raman Spectroscopy for Polymer Analysis

Posted: 1 June 2016 | | 2 comments

Find out how recent advances in technology have made Raman spectroscopy better and more affordable for polymer analysis than traditional IR spectroscopy…

Vibrational spectroscopy has been used for years for polymer analysis. Traditionally the preferred technique has been infrared (IR) spectroscopy; however, recent advances in technology have made Raman spectroscopy, with its inherent advantages, easier and more affordable than in the past.

Raman and IR spectroscopy differ fundamentally in their mechanisms for detecting vibrations. IR spectroscopy detects vibrations that generate a change in the molecule’s dipole moment. Raman spectroscopy detects vibrations that generate a change in the molecule’s polarisability. Some vibrations can be accompanied by changes in both dipole moment and polarizability; these vibrations are detected by both IR and Raman spectroscopy. In long polymer chains, vibrations of the backbone generally do not induce changes in the dipole moment because adjacent dipoles are cancelled out by repeating units, but the change in polarisability is usually high. This makes Raman spectroscopy particularly useful because it is highly sensitive to the structure and conformation of the polymer backbone. In contrast, IR can be useful for analysing side chains, so the two techniques can be used complementarily…

This whitepaper is restricted - login or subscribe free to access

European Pharmaceutical Review Issue 3 2022Thank you for visiting our website. To access this content in full you'll need to login. It's completely free to subscribe, and in less than a minute you can continue reading. If you've already subscribed, great - just login.

Why subscribe? Join our growing community of thousands of industry professionals and gain access to:

  • bi-monthly issues in print and/or digital format
  • case studies, whitepapers, webinars and industry-leading content
  • breaking news and features
  • our extensive online archive of thousands of articles and years of past issues
  • ...And it's all free!

Click here to Subscribe today Login here


Related topics

Related organisations

2 responses to “Whitepaper: Raman Spectroscopy for Polymer Analysis”

  1. aydin ulubey says:

    please send me paper

    • Kaynat Choudhury says:

      Hi Aydin,

      You can download the whitepaper by clicking here. Remember, you need to log in or subscribe before you can download it though!

      Many thanks,

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.