Hyperbranched poly(glycolide) copolymers with glycerol branching points via ring-opening copolymerization

被引：6

作者：

Fischer, Anna M. ^{[1
]}

Schuell, Christoph ^{[1
]}

Frey, Holger ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany

来源：

POLYMER | 2015年 / 72卷

关键词：

Poly(glycolic acid); Biodegradable polymer; Ring-opening polymerization;

D O I：

10.1016/j.polymer.2015.04.047

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Sn(Oct) 2-catalyzed synthesis of hyperbranched poly(glycolide) copolymers with glycerol branching points in the backbone is possible via ring-opening multi-branching copolymerization (ROMBP) of glycolide and 5HDON (5-hydroxymethyl-1,4-dioxan-2-one). Using this strategy, well-defined and soluble branched polyesters with apparent molecular weights (Mn) in the range of 1300-2000 g mol(-1) and varying comonomer content (5HDON/glycolide = 30:70-70:30) were obtained. 2D NMR spectroscopy, thermal analysis and MALDI-TOF mass spectrometry confirmed the successful incorporation of both monomers and the resulting branched structure. Multiple end group functionality offers the possibility for further post-polymerization modification, rendering the materials interesting with respect to processing of PGA. Potential applications range from novel polyurethanes to biomedical purposes. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：436 / 446

页数：11

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