Enzyme-catalyzed synthesis of hyperbranched aliphatic polyesters

• Main Authors: Skaria, S, Smet, Mario, Frey, H
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley-v c h verlag gmbh 2002
• Subjects: dendrimers; enzymatic polymerization; hyperbranched polymers; polyesters; ring-opening polymerization; ab-monomer; polymers; copolymerization; lactones; lipase; Antarc*; Antarctica
• Online Access: https://lirias.kuleuven.be/handle/123456789/32351; http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=CCC&SrcApp=PRODUCT_NAME&SrcURL=WOS_RETURN_URL&CKEY=SKAR0292020023MS&DestLinkType=FullRecord&DestApp=CCC&SrcDesc=RETURN_ALT_TEXT&SrcAppSID=APP_SID

Communication: Hyperbranched aliphatic copolyesters have been prepared by copolymerization of c-caprolactone with 2,2-bis(hydroxymethyl)butyric acid, catalyzed by immobilized Lipase B from Candida antarctica (Novozyme 435) under mild conditions. Via this novel combination of ring-opening AB polymerization and AB(2) polycondensation, the degree of branching (DB) and, consequently, the density of functional end groups can be controlled by the comonomer ratio in the feed (0 < DB < 0.33). status: published