Controlled lactide polymerisation in supercritical carbon dioxide with organo-catalyst

Researchers from Australia and the UK have developed a truly ‘green’ process for the synthesis of polylactic acid in the absence of toxic solvents and catalysts.

The team led by Idriss Blakely (The University of Queensland, Australia) and Steven Howdle (University of Nottingham, UK) have developed an approach where polylactide can be synthesised in a controlled manner in supercritical CO2 using 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as an organo-catalyst.  This new method, unlike others before it, does not require the use of organic solvents or metal catalysts, and is conducted at much lower temperatures than for bulk polymerisation of lactic acid.

To read more, click the link below! FREE until 27 July.

Controlled polymerisation of lactide using an organo-catalyst in supercritical carbon dioxide, Idriss Blakey, Anguang Yu, Steven M. Howdle, Andrew K. Whittaker and Kristofer J. Thurecht, Green Chem., 2011, DOI: 10.1039/C1GC15344G

If you liked this, you may also be interested in this article too!

Direct conversion of polyamides to ω-hydroxyalkanoic acid derivatives by using supercritical MeOH, Akio Kamimura, Kouji Kaiso, Shuzo Suzuki, Yusuke Oishi, Yuki Ohara, Tsunemi Sugimoto, Kohichi Kashiwagi and Makoto Yoshimoto, Green Chem., 2011, DOI: 10.1039/C1GC15172J

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

One Response to “Controlled lactide polymerisation in supercritical carbon dioxide with organo-catalyst”

  1. [...] of Queensland, Australia and the University of Nottingham, UK.  Their article, previously highlighted on this blog, reports the ‘green’ synthesis of well defined polylactic acid (PLA) via organo-catalysis, [...]

    (Report comment)

Leave a Reply