Controlled Ring-Opening Polymerization of Lactide and Glycolide
β Scribed by Dechy-Cabaret, Odile; Martin-Vaca, Blanca; Bourissou, Didier
- Book ID
- 115517531
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 665 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0009-2665
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π SIMILAR VOLUMES
To obtain more insight in the ring-opening polymerization of lactones, complex formation of the initiators tetraphenyltin, stannous octoate, tin tetrachloride, aluminium bromide and triisobutylaluminium (TIBA), and the monomers L(-)-lactide, D,e-lactide and glycolide was studied by i.r.-spectroscopy
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 pol
## Abstract The sixβmembered lactide was polymerized using the ringβopening polymerization with lipase as a catalyst at a temperature between 80 and 130Β°C in bulk to yield the corresponding polylactide with weightβaverage molecular weights of up to 126000. The most preferable conditions with respec
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