A Study of L-Lactide Ring-Opening Polymerization Kinetics
✍ Scribed by Puaux, Jean-Pierre; Banu, Ionut; Nagy, Iosif; Bozga, Grigore
- Book ID
- 120626064
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 141 KB
- Volume
- 259
- Category
- Article
- ISSN
- 1022-1360
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## Abstract **Summary:** Poly(D,L‐lactide) with a molar mass of 10^5^ g · mol^−1^ and a yield over 90% was produced in 10 min by the ring‐opening polymerization of D,L‐lactide under microwave irradiation with forward power of 255 W. A degradation of the poly(D,L‐lactide) was also induced by microwa
## Abstract The six‐membered lactide was polymerized using the ring‐opening polymerization with lipase as a catalyst at a temperature between 80 and 130°C in bulk to yield the corresponding polylactide with weight‐average molecular weights of up to 126000. The most preferable conditions with respec
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