Green Polymers

  • Author: David Bradley
  • Published: 26 July 2011
  • Copyright: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Green Chemistry/RSC
thumbnail image: Green Polymers

Supercritical fluids have come to the fore as useful potential alternatives to volatile organic solvents. They have the clear advantage over VOCs of not being flammable nor toxic and of being isolable from product simply through release of the pressure so that they revert to the gas phase.

UK chemists have now used 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in supercritical CO2 to carry out a ring-opening polymerisation of DL-lactide to polylactic acid. This "green" process avoids toxic solvent and expensive metal catalysts and
occurs at a lower temperature than industrial polymerization.


Article Views: 2449

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH