Lipase catalyzed copolymerization of 3(S)-isopropylmorpholine-2,5-dione and D,L-lactide |
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Authors: | Feng Yakai Klee Doris Höcker Hartwig |
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Affiliation: | Lehrstuhl für Textilchemie und Makromolekulare Chemie der RWTH Aachen, Veltmanplatz 8, D-52062 Aachen, Germany. yakaifeng@hotmail.com |
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Abstract: | The polymerization and copolymerization of 3(S)-isopropylmorpholine-2,5-dione (IPMD) and D,L-lactide (DLLA) were carried out in the presence of Porcine pancreatic lipase type II (PPL) as a catalyst at 100 degrees C for 168 h. Homopolymers and random copolymers of various compositions were obtained with a carboxylic acid group at one end and a hydroxyl group at the other end. The glass transition temperature of the copolymers decreases with increasing mole fraction of DLLA residue in the copolymers. |
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Keywords: | biodegradable biomaterials copolymerization enzymes ring‐opening polymerization |
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