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Degradable polyesters landfills

The persistent problem of conventional plastic waste disposal grows ever more severe as landfills approach capacity with these highly degradation-resistant substances (Section 12-15). Biodegradable plastics provide an option for nonre-usable items such as plastic bags, wraps, and bottles. A recently developed and commercialized biobased and biodegradable plastic is poly(jS-hydroxybutyrate-co-/3-hydroxyvalerate) (PHBV), a copolymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid. PHBV is a polyester that is produced by bacterial fermentation of mixtures of acetic and propanoic acids. The ratio of the two hydroxy acids controls the properties of the plastic—it is more flexible with more... [Pg.868]

See other pages where Degradable polyesters landfills is mentioned: [Pg.598]    [Pg.606]    [Pg.776]    [Pg.598]    [Pg.606]    [Pg.776]    [Pg.192]    [Pg.284]    [Pg.188]    [Pg.378]    [Pg.100]    [Pg.175]    [Pg.297]    [Pg.57]    [Pg.1436]    [Pg.16]    [Pg.321]    [Pg.194]    [Pg.103]    [Pg.127]    [Pg.458]    [Pg.1190]    [Pg.61]   
See also in sourсe #XX -- [ Pg.597 ]

See also in sourсe #XX -- [ Pg.597 ]



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