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Independently of molecular weight, uniaxially oriented films of poly([R]-3-hydroxybutyrate) (P(3HB)), with sufficient strength and flexibility were prepared by cold-drawing from an amorphous preform at a temperature below, but near to, the glass transition temperature. Melt-crystallized and solvent-cast films of P(3HB) are usually quite brittle, and the orientation is critical and difficult to reproduce...