Synthesis of Biodegradable High Molecular Weight Polycarbonates from 1,3-Trimethylene Carbonate and 2,2-Dimethyltrimethylene Carbonate

被引：14

作者：

Pastusiak, Malgorzata ^{[1
]}

Dobrzynski, Piotr ^{[1
,2
]}

Kasperczyk, Janusz ^{[1
,3
]}

Smola, Anna ^{[1
]}

Janeczek, Henryk ^{[1
]}

机构：

[1] Polish Acad Sci, Ctr Polymer & Carbon Mat, PL-41800 Zabrze, Poland

[2] Jan Dlugosz Univ Czestochowa, Inst Chem Environm Protect & Biotechnol, PL-42218 Czestochowa, Poland

[3] Med Univ Silesia, Dept Biopharm, Sch Pharm, PL-41200 Sosnowiec, Poland

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2014年 / 131卷 / 05期

关键词：

biomaterials; copolymers; polycarbonates; ring-opening polymerization; biodegradable; RING-OPENING POLYMERIZATION; TOXICITY ZIRCONIUM COMPOUNDS; TRIMETHYLENE CARBONATE; EPSILON-CAPROLACTONE; L-LACTIDE; RANDOM COPOLYMERIZATION; MECHANICAL-PROPERTIES; CYCLIC CARBONATES; POLYMERS; BEHAVIOR;

D O I：

10.1002/app.40037

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The possibility to obtain biodegradable high molecular weight aliphatic polycarbonates from trimethylene carbonate (TMC) and 2,2-dimethyltrimethylene carbonate (DTC) monomers with designed composition of comonomeric units was presented. Zinc(II) acetylacetonate monohydrate was used as a catalyst. A detailed analysis of copolymer chain structure was performed by means of high resolution C-13-NMR spectroscopy. The equations for calculation of characteristic parameters of copolymer chain such as average length of blocks, randomization and transesterification coefficients were shown. The copolymerization reactivity ratios were determined (r(TMC)=1.17 +/- 0.20 and r(DTC)= 0.42 +/- 0.09). Significant differences in the reactivity of comonomers and the low transesterification result in gradient chain microstructure. The synthesized copolymer containing about 80 mol % of DTC units is a semicrystalline material with good mechanical properties, allowing for application of this material in the formation of bioresorbable flexible implants or scaffolds. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2014, 131, 40037.

引用

页数：10

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