Synthesis of Oxetane-Functional Aliphatic Polyesters via Enzymatic Polycondensation

被引：16

作者：

Mueller, Sophie S. ^{[1
,2
]}

Frey, Holger ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55128 Mainz, Germany

[2] Grad Sch MAINZ, D-55128 Mainz, Germany

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2012年 / 213卷 / 17期

关键词：

3; 3-bis(hydroxymethyl)oxetane; enzyme CALB; Lipase B; polycondensation; polyesters; MULTIHYDROXYL BRANCHED POLYETHERS; PHOTOINITIATED CATIONIC-POLYMERIZATION; CATALYZED SYNTHESIS; CARBON-DIOXIDE; COPOLYMERIZATION;

D O I：

10.1002/macp.201200269

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 50009800 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.

引用

页码：1783 / 1790

页数：8

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