Chemo-enzymatic synthesis of comb polymers
2007 (English)In: European Polymer Journal, ISSN 0014-3057, E-ISSN 1873-1945, Vol. 43, no 3, 808-817 p.Article in journal (Refereed) Published
The paper describes the synthesis and characterization of comb polymers by a two-step chemo-enzymatic process. In the first step macromonomers bearing unsaturation at the chain end were prepared by lipase catalyzed ring-opening polymerization (ROP) of E-caprolactone (CL) and 1,5-dioxepane-2-one (DXO). The ROP was carried out in bulk at 60 degrees C under anhydrous conditions using 2-hydroxyethyl methacrylate (HEMA) as the initiator. The DP of the macromonomers was controlled by regulating the monomer: HEMA molar feed concentration. The macromonomers were then homo- or co-polymerized in the second step with alkyl methacrylate monomers (methyl methacrylate or HEMA) using AIBN initiated free radical polymerization. Characterization of the polymers was done by H-1 NMR, SEC and DSC techniques.
Place, publisher, year, edition, pages
2007. Vol. 43, no 3, 808-817 p.
1, 5-Dioxepane-2-one; Comb polymers; Enzyme; Lipase-CA; Ring-opening polymerization; Copolymerization; Enzymes; Free radical polymerization; Macromolecules; Ring opening polymerization; Saturation (materials composition); Synthesis (chemical); 1, 5-Dioxepane-2-one; 2-hydroxyethyl methacrylate (HEMA); Caprolactone (CL); Comb polymers; Lipase-CA; Macromonomers; Organic polymers
IdentifiersURN: urn:nbn:se:kth:diva-7007DOI: 10.1016/j.eurpolymj.2006.11.032ISI: 000245064900014ScopusID: 2-s2.0-33847037905OAI: oai:DiVA.org:kth-7007DiVA: diva2:11881
QC 201008182007-04-202007-04-202010-08-18Bibliographically approved