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Vibrational analysis of ring-opening polymerizations of glycolide, L-lactide and D,L-lactide

✍ Scribed by G Kister; G Cassanas; E Fabrègue; L Bardet

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
353 KB
Volume
28
Category
Article
ISSN
0014-3057

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✦ Synopsis

The i.r. and Raman spectra of glycolide, L-lactide and O,L-lactide in the solid state have been investigated in the 4000-100 cm -t range. An assignment of the fundamental vibrations is given. The Raman spectra of aqueous solutions of these cyclic diesters showed ring-opening and the beginning of polymerization, characterized by the appearance of ester group bands and acid and alcohol end-group bands.

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