6533b831fe1ef96bd1298425
RESEARCH PRODUCT
Synthesis of Oxetane-Functional Aliphatic Polyesters via Enzymatic Polycondensation
Holger FreySophie S. Müllersubject
chemistry.chemical_classificationCondensation polymerPolymers and PlasticsSebacic acidbiologyOrganic ChemistryPolymerCondensed Matter PhysicsOxetanebiology.organism_classificationPolyesterchemistry.chemical_compoundMonomerchemistryPolymer chemistryMaterials ChemistryOrganic chemistryHydroxymethylCandida antarcticaPhysical and Theoretical Chemistrydescription
Synthesis, characterization, and thermal properties of a series of oxetane-functional aliphatic polyesters are investigated. The incorporation of the acid-sensitive 3,3-bis(hydroxymethyl)oxetane (BHMO) into polymers is achieved by using the enzyme CALB (Candida antarctica Lipase B) as a catalyst. This mild synthetic strategy provides well-defined, oxetane-functional polyesters. The enzymatic polycondensation allows for the synthesis of a series of aliphatic polyesters containing various ratios of the difunctional monomers sebacic acid, 1,8-octanediol, and BHMO with molecular weights between 5000–9800 g mol−1 and polydispersity indices (Mw/Mn) in the range of 1.25 and 1.92. Furthermore, crosslinking of BHMO and a polymer sample is carried out via opening of the pending oxetanes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-08-02 | Macromolecular Chemistry and Physics |