Abstract
Dynamic tensile modulus and X-ray scattering measurements were made for a series of bacterially produced poly-Β-hydroxybutyrate/Β-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 behaviour of isotropic PHB/HV with that of conventional thermoplastics such as polyethylene terephthalate, isotactic polypropylene and polyethylene.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Developments in Crystalline Polymers — 2″ chapter by P. A. Holmes, Applied Science Publishers 1985
Barham PJ, Keller A, Otun EL, Holmes PA (1985) J Mater Sci, in press
Barham J, Keller A (1985) J Mater Sci, in press
Ward IM (1983) Mechanical Properties of Solid Polymers, 2nd edition, Wiley-Interscience, New York, p 302
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Owen, A.J. Some dynamic mechanical properties of microbially produced poly-Β-hydroxybutyrate/Β-hydroxyvalerate copolymers. Colloid & Polymer Sci 263, 799–803 (1985). https://doi.org/10.1007/BF01412956
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01412956