Shape Memory Foams of Microbial Polyester for Biomedical Applications

Fabrizio Quadrini Department of Industrial Engineering, University of Rome Tor Vergata, Rome, ItalyCorrespondence[email protected]

Denise Bellisario Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy

Loredana Santo Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy

Costantino Del Gaudio Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy

Alessandra Bianco Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy

Abstract

Foams of polycaprolactone (PCL) and microbial polyester (poly-hydroxybutyrate-hydroxyvalerate, PHBV with 10% mol PHV) were produced by particulate leaching in an urea preform and subsequent preform dissolution in distilled water. Films were also cast to compare mechanical and shape memory performances. SEM observations of foam sections showed that a homogenous microstructure was obtained with good replication of urea particles. Cylindrical PHBV samples (porosity about 90%) were used for shape memory tests in compression mode and a good behavior was observed. After training, 100% shape recovery can be achieved if a maximum 30% compression is applied.

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ACKNOWLEDGMENTS

The authors are grateful to dr Vincenzo Dimatteo for its support in the experimentation.

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Shape Memory Foams of Microbial Polyester for Biomedical Applications

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Shape Memory Foams of Microbial Polyester for Biomedical Applications

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