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Enzyme-catalyzed ring-opening polymerization of 3(S)-isopropylmorpholine-2,5-dione

✍ Scribed by Yakai Feng; Jens Knüfermann; Doris Klee; Hartwig Höcker

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
30 KB
Volume
20
Category
Article
ISSN
1022-1336

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Lipase-catalyzed ring-opening polymeriza
Lipase-catalyzed ring-opening polymerization of 3(S)-isopropylmorpholine-2,5-dione
✍ Yakai Feng; Jens Knüfermann; Doris Klee; Hartwig Höcker 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 127 KB 👁 2 views

Lipase-catalyzed ring-opening bulk polymerizations of 3(S)-isopropylmorpholine-2,5-dione (IPMD) were investigated. Selected commercial lipases were screened as catalysts for IPMD polymerization at 100 8C. Polymerizations catalyzed with lipases PPL, PS, and CR result in IPMD conversions of about 50%,

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## Abstract Polymorpholine‐2,5‐dione‐__block__‐polylactide (PMD‐__b__‐PLA) was synthesized via two‐step anionic ring‐opening polymerization at room temperature. First step of ring‐opening polymerization was the ring‐opening of morpholine‐2,5‐dione (MD). It was carried out in an airtight and dry pol