SOME DYNAMIC MECHANICAL-PROPERTIES OF MICROBIALLY PRODUCED POLY-BETA-HYDROXYBUTYRATE BETA-HYDROXYVALERATE COPOLYMERS

被引：53

作者：

OWEN, AJ

机构：

[1] Univ Regensburg, Inst fuer Physik, III, Regensburg, West Ger, Univ Regensburg, Inst fuer Physik III, Regensburg, West Ger

来源：

COLLOID AND POLYMER SCIENCE | 1985年 / 263卷 / 10期

关键词：

BIOPOLYMERS - DYNAMIC MODULUS - MECHANICAL ANISOTROPY;

D O I：

10.1007/BF01412956

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dynamic tensile modulus and X-ray scattering measurements were made for a series of bacterially produced poly- beta -hydroxybutyrate/ beta -hydroxyvalerate (PHB/HV) random copolymers. The position of the primary relaxation is shifted to lower temperatures by increasing HV content and the material becomes generally softer. Drawn PHB/17% Hv copolymer shows conventional mechanical anisotropy. Results are presented comparing the dynamic mechanical behavior of isotropic PHB/HV with that of conventional thermoplastics such as polyethylene terephthalate, isotactic polypropylene and polyethylene.

引用

页码：799 / 803

页数：5