Characterization and application of poly(beta-hydroxyalkanoates) family ascomposite biomaterials

Citation
N. Galego et al., Characterization and application of poly(beta-hydroxyalkanoates) family ascomposite biomaterials, POLYM TEST, 19(5), 2000, pp. 485-492
Citations number
17
Categorie Soggetti
Material Science & Engineering
Journal title
POLYMER TESTING
ISSN journal
01429418 → ACNP
Volume
19
Issue
5
Year of publication
2000
Pages
485 - 492
Database
ISI
SICI code
0142-9418(2000)19:5<485:CAAOPF>2.0.ZU;2-N
Abstract
Some polyhydroxyalkanoates (PHA), polyhydroxybutyrate (PHB) and copolymers poly(hydroxybutyrs co-hydroxyvalerate) (P(HB-co-HV)), were characterized by different techniques (GPC, DSC, DMA, FT DRX) in order to be used in hydrox yapatite (HA) composites. These polymers presented high molecu weights and are semicrystalline materials. The crystallinity has a slight tendency to d ecrease with increasing HV content in the copolymer, PHA/HA composites prep ared at the same composition, show a lower elastic modulus than 0 and 8% HV content. The composite P(HB-co-8%HV)/HA (30% w/w) 1 the highest modulus. I n addition, this composite has a mechanical strength in compression of 62 M which is about the same order of magnitude of several human bones and thus it is interesting as biomater for use in fracture fixation, (C) 2000 Elsev ier Science Ltd. All rights reserved.