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Synthesis of Oxetane‐Functional Aliphatic Polyesters via Enzymatic Polycondensation
Author(s) -
Müller Sophie S.,
Frey Holger
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200269
Subject(s) - oxetane , polyester , condensation polymer , candida antarctica , polymer chemistry , chemistry , hydroxymethyl , monomer , polymer , dispersity , lipase , organic chemistry , enzyme
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 ( M w / M n ) 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.