## 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
ChemInform Abstract: Stereocontrolled Ring-Opening Polymerization of Lactide
β Scribed by Matthew J. Stanford; Andrew P. Dove
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 24 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
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Structurally characterized, chiral heterobimetallic yttrocene derivatives Li[Y(g 5 : g 1 -C 5 R 4 Si-Me 2 NCH 2 CH 2 OMe) 2 ] (R = Me, H) have been shown to be active in the controlled ring-opening polymerization of L-lactide to give poly(L-lactide)s with high molecular weights and moderately narrow
## Abstract In contrast to LLA, DLA is converted in toluene solution under mild reaction conditions (50β70βΒ°C) using Novozyme 435 (immobilized CALB) to form the corresponding polymer. The influence of several parameters, such as enzyme concentration, temperature and monomer concentration, on the po