They are UV stable, in contrast to other bioplastics from polymers such as polylactic acid , partial ca. Processability, impact strength and flexibility improves with a higher percentage of valerate in the material. PHAs are soluble in halogenated solvents such chloroform , dichloromethane or dichloroethane.
PHB is similar in its material properties to polypropylene PP , has a good resistance to moisture and aroma barrier properties. Polyhydroxybutyric acid synthesized from pure PHB is relatively brittle and stiff. PHB copolymers, which may include other fatty acids such as beta-hydroxyvaleric acid, may be elastic. Due to its biodegradability and potential to create bioplastics with novel properties, much interest exists to develop the use of PHA-based materials. PHA fits into the green economy as a means to create plastics from non-fossil fuel sources.
Furthermore, active research is being carried out for the biotransformation " upcycling " of plastic waste e. A PHA copolymer called PHBV poly 3-hydroxybutyrate-cohydroxyvalerate is less stiff and tougher, and it may be used as packaging material. There are potential applications for PHA produced by micro-organisms  within the medical and pharmaceutical industries, primarily due to their biodegradability. Fixation and orthopaedic applications have included sutures , suture fasteners, meniscus repair devices, rivets , tacks, staples, screws including interference screws , bone plates and bone plating systems, surgical mesh, repair patches, slings, cardiovascular patches, orthopedic pins including bone.
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Add Polyhydroxyalkanoates to your PopFlock. Polymer Reviews. Archived from the original on January 28, Biochemical Engineering Journal. Compostable Polymer Materials. Retrieved AIChE Journal. This article uses material from the Wiki pedia page available here. Seaweed eating microbes used to make bioplastic.
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