Crystallization kinetics of poly(hydroxybutyrate-co-hydroxyvalerate) and poly(dicyclohexylitaconate) PHBV/PDCHI blends: thermal properties and hydrolytic degradation

被引：24
作者：
Buzarovska, A. [1 ]
Grozdanov, A. [1 ]
机构：
[1] Univ St Cyril & Methodius, Fac Technol & Met, Skopje 1000, North Macedonia
来源：
JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 07期
关键词：
MECHANICAL-PROPERTIES; POLYMER BLENDS; PHASE-CHANGE; COMPOSITES; MISCIBILITY; BEHAVIOR; POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE); MORPHOLOGY; MODEL; MELT;
D O I：
10.1007/s10853-008-3236-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of poly(dicyclohexylitaconate) (PDCHI) content, on the crystallization kinetics, thermal properties, and hydrolytic degradation of poly(hydroxybutyrate-co-hydroxyvalerate), PHBV, was studied. Irrespective of the blend composition, the calorimetric and FTIR spectroscopy analyses indicate that the blend components are immiscible. The kinetics of non-isothermal crystallization and melting behavior of PHBV were studied by differential scanning calorimetry (DSC) and examined using non-isothermal Avrami and Mo's analyses. Based on Mo's model, the PDCHI content has significant effect on the crystallization kinetics of PHBV matrix. Despite the immiscibility of these polymers, the amorphous polyvinyl ester could extensively control the rate of hydrolytic degradation.
引用
收藏
页码：1844 / 1850
页数：7
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