Polyhydroxybutyrate
Chemical compound
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![Poly[(-)3-hydroxybutyric acid] | Polysciences, Inc.](/imgres?imgurl=https://www.polysciences.com/media/catalog/product/cache/c44c46ddedcd391a2ef31315a65fb4d0/1/6/16916_1.jpg&imgrefurl=https://www.polysciences.com/india/poly-3-hydroxybutyric-acid&h=700&w=700&tbnid=ffh-mQmnwALLxM&q=Polyhydroxybutyrate&tbnh=140&tbnw=140&usg=AI4_-kSQshHa1ZcxRaNXgw4WPPKlX96ryg&vet=1&docid=6C5DpIuF_HjddM&sa=X&ved=2ahUKEwimqdGQntyFAxUiFxAIHRdiBgIQ9QF6BAgAEAo)
Polyhydroxybutyrate is a polyhydroxyalkanoate, a polymer belonging to the polyesters class that are of interest as bio-derived and biodegradable plastics. Wikipedia
Boiling point: 516.6°F (269.2°C)
Melting point: 165 °C to 175 °C