Synthesis, Crystallization, and Enzymatic Degradation of the Biodegradable Polyester Poly(ethylene azelate)

被引：15

作者：

Papageorgiou, George Z. ^{[1
]}

Bikiaris, Dimitrios N. ^{[1
]}

Achilias, Dimitris S. ^{[1
]}

Karagiannidis, Nikitas ^{[2
]}

机构：

[1] Aristotle Univ Thessaloniki, Lab Polymer Chem & Technol, Dept Chem, GR-54124 Thessaloniki, Macedonia, Greece

[2] Technol Educ Inst Thessaloniki, Dept Crop Prod, Thessaloniki, Greece

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2010年 / 211卷 / 24期

关键词：

biodegradable; crystallization; multiple melting; poly(ethylene azelate); secondary nucleation; DIFFERENTIAL SCANNING CALORIMETRY; MULTIPLE MELTING PEAKS; SOLID-STATE STRUCTURES; POLY(BUTYLENE SUCCINATE); ISOTHERMAL CRYSTALLIZATION; NONISOTHERMAL CRYSTALLIZATION; GLASS-TRANSITION; SELF-NUCLEATION; ETHER KETONE); X-RAY;

D O I：

10.1002/macp.201000491

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(ethylene azelate) (PEAz) was synthesized and its melting behavior was studied with DSC and Step Scan DSC. The equilibrium melting point of PEAz was found 62 degrees C and the heat of fusion of 100% crystalline polymer was estimated at 160 J.g(-1). Polarized light microscopy showed mixed birefringence. From isothermal crystallization DSC study, after self-nucleation, crystallization rates were estimated. The Lauritzen-Hoffman plots showed crystallization regime I to II and II to III transition at 34 and 19 degrees C respectively. Non-isothermal crystallization was studied. The activation energy was calculated applying the isoconversional method of Friedman. Chemical hydrolysis of PEAz was very slow, while enzymatic hydrolysis showed comparable rates with PCL.

引用

页码：2585 / 2595

页数：11