Radiation-induced degradation of poly(3-hydroxybutyrate) and the copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
β Scribed by Hiroshi Mitomo; Yuhei Watanabe; Isao Ishigaki; Terumi Saito
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 531 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0141-3910
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π SIMILAR VOLUMES
Water sorption and diffusion have been investigated in poly(3-hydroxybutyrate) (PHB) and three poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymers [P(HB-HV)] by means of a Cahn electromicrobalance. Permeability of these samples have been determined using a gravimetric permeation cell. Two experi
CO 2 sorption and diffusion in poly(3-hydroxybutyrate) and three poly(3hydroxybutyrate-co-3-hydroxyvalerate) copolymers were investigated gravimetrically at temperatures from 25Β°to 50Β°C and pressures up to 1 atm. The sorption behavior proved to be linear for all the copolymers studied. An additional
## Abstract A strain of __Escherichia coli__ was metabolically engineered to produce poly(3βhydroxybutyrateβ__co__β3βhydroxyvalerate) (PHBV) of specified composition between 5% and 18% HV. A gene encoding propionylβCoA synthetase (__prpE__ from __S. enterica__) was placed under the control of the I