Surface modification of hydroxyapatite to introduce interfacial bonding with Polyactive® 70/30 in a biodegradable composite

Q. Liu; J.R. de Wijn; D. Bakker; C.A. van Blitterswijk

doi:10.1007/BF00122178

Surface modification of hydroxyapatite to introduce interfacial bonding with Polyactive® 70/30 in a biodegradable composite

Q. Liu^*
, J.R. de Wijn
, D. Bakker
, C.A. van Blitterswijk

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

101 Citations (Scopus)

16 Downloads (Pure)

Abstract

A method was developed to improve the interfacial bonding between hydroxyapatite and a biodegradable copolymer Polyactive® 70/30. Hydroxyapatite was first surface modified by the polyelectrolytes polyacrylic acid or poly(ethylene-co-maleic acid) in aqueous solutions. Subsequently the surface-modified hydroxyapatite was used as filler in composites with Polyactive® 70/30. The strength, elongation at break and elastic modulus of the composite in aqueous environment were significantly improved by this method. Based on these experimental results, it is believed that the interface improvement is due to hydrogen bonding and/or dipole interactions formed between polyelectrolyte molecules and polyethylene glycol segments in the polymer matrix. Due to the introduction of interfacial bonding by using such method, a new biodegradable bone-bonding composite can be made.

Original language	English
Pages (from-to)	551-557
Number of pages	7
Journal	Journal of Materials Science: Materials in Medicine
Volume	7
Issue number	9
DOIs	https://doi.org/10.1007/BF00122178
Publication status	Published - 1996
Externally published	Yes

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title = "Surface modification of hydroxyapatite to introduce interfacial bonding with Polyactive{\textregistered} 70/30 in a biodegradable composite",

abstract = "A method was developed to improve the interfacial bonding between hydroxyapatite and a biodegradable copolymer Polyactive{\textregistered} 70/30. Hydroxyapatite was first surface modified by the polyelectrolytes polyacrylic acid or poly(ethylene-co-maleic acid) in aqueous solutions. Subsequently the surface-modified hydroxyapatite was used as filler in composites with Polyactive{\textregistered} 70/30. The strength, elongation at break and elastic modulus of the composite in aqueous environment were significantly improved by this method. Based on these experimental results, it is believed that the interface improvement is due to hydrogen bonding and/or dipole interactions formed between polyelectrolyte molecules and polyethylene glycol segments in the polymer matrix. Due to the introduction of interfacial bonding by using such method, a new biodegradable bone-bonding composite can be made.",

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year = "1996",

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AU - van Blitterswijk, C.A.

PY - 1996

Y1 - 1996

N2 - A method was developed to improve the interfacial bonding between hydroxyapatite and a biodegradable copolymer Polyactive® 70/30. Hydroxyapatite was first surface modified by the polyelectrolytes polyacrylic acid or poly(ethylene-co-maleic acid) in aqueous solutions. Subsequently the surface-modified hydroxyapatite was used as filler in composites with Polyactive® 70/30. The strength, elongation at break and elastic modulus of the composite in aqueous environment were significantly improved by this method. Based on these experimental results, it is believed that the interface improvement is due to hydrogen bonding and/or dipole interactions formed between polyelectrolyte molecules and polyethylene glycol segments in the polymer matrix. Due to the introduction of interfacial bonding by using such method, a new biodegradable bone-bonding composite can be made.

AB - A method was developed to improve the interfacial bonding between hydroxyapatite and a biodegradable copolymer Polyactive® 70/30. Hydroxyapatite was first surface modified by the polyelectrolytes polyacrylic acid or poly(ethylene-co-maleic acid) in aqueous solutions. Subsequently the surface-modified hydroxyapatite was used as filler in composites with Polyactive® 70/30. The strength, elongation at break and elastic modulus of the composite in aqueous environment were significantly improved by this method. Based on these experimental results, it is believed that the interface improvement is due to hydrogen bonding and/or dipole interactions formed between polyelectrolyte molecules and polyethylene glycol segments in the polymer matrix. Due to the introduction of interfacial bonding by using such method, a new biodegradable bone-bonding composite can be made.

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JO - Journal of Materials Science: Materials in Medicine

JF - Journal of Materials Science: Materials in Medicine

IS - 9

ER -

Surface modification of hydroxyapatite to introduce interfacial bonding with Polyactive® 70/30 in a biodegradable composite

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