Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

PHBV

Names
Other names Poly(β-hydroxybutyrate-β-hydroxyvalerate) Poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) Biopol P(3HB-3HV)
Identifiers
CAS Number	80181-31-3
3D model (JSmol)	Interactive image
Abbreviations	PHBV P(3HB-co-3HV)
ChemSpider	96951
ECHA InfoCard	100.125.321
PubChem CID	107801
InChI InChI=1S/C5H10O3.C4H8O3/c1-2-4(6)3-5(7)8;1-3(5)2-4(6)7/h4,6H,2-3H2,1H3, (H,7,8);3,5H,2H2,1H3,(H,6,7) Key: IUPHTVOTTBREAV-UHFFFAOYSA-N
SMILES CCC(CC(=O)O)O.CC(CC(=O)O)O
Properties
Chemical formula	[COCH2CH(CH3)O]m[COCH2CH(C2H5)O]n
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate), commonly known as PHBV, is a polyhydroxyalkanoate-type polymer. It is biodegradable, nontoxic, biocompatible plastic produced naturally by bacteria and a good alternative for many non-biodegradable synthetic polymers. It is a thermoplastic linear aliphatic polyester.

PHBV was first manufactured in 1983 by Imperial Chemical Industries (ICI). It is commercialized under the trade name Biopol. ICI (Zeneca) sold it to Monsanto in 1996. This was then obtained by Metabolix in 2001.Biomer L is the trade name of PHBV from Biomer.

PHBV is synthesized by bacteria as storage compounds under growth limiting conditions. It can be produced from glucose and propionate by the recombinant Escherichia coli strains. Many other bacteria like Paracoccus denitrificans and Ralstonia eutropha are also capable of producing it.

It can also be synthesized from genetically engineered plants.

PHBV is a copolymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid. PHBV may also be synthesized from butyrolactone and valerolactone in the presence of oligomeric aluminoxane as catalyst.