Synthesis of poly(ε-caprolactone)/hydroxyapatite nanocomposites using in-situ co-precipitation

Won Young Choi, Hyoun Ee Kim, Se Yoon Oh, Young-Hag Koh

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Hybrid poly(ε-caprolactone) (PCL)/hydroxyapatite(HA) nanocomposites with various HA contents (0, 10, 20, 30 wt.%) were synthesized using an in-situ co-precipitation method. All nanocomposites prepared contained elongated HA nanocrystals dispersed uniformly in the PCL matrix without severe agglomeration. The tensile strength decreased from 13.5 ± 0.4 to 10.2 ± 0.3 MPa with increasing the HA content from 0 to 30 wt.%, whereas the elastic modulus increased from 85 ± 4.2 to 183 ± 6.6 MPa. In addition, the ALP activity was increased remarkably due to the presence of bioactive HA nanocrystals within the composites. The nanocomposite containing 30 wt.% HA showed a higher elastic modulus and ALP activity than the conventional PCL/HA composite with an initial HA content of 30 wt.%. This was attributed to the nanoscale hybridization of the HA nanocrystals without significant agglomeration.

Original languageEnglish
Pages (from-to)777-780
Number of pages4
JournalMaterials Science and Engineering C
Volume30
Issue number5
DOIs
Publication statusPublished - 2010 Jun 15

Fingerprint

Durapatite
Coprecipitation
Hydroxyapatite
Nanocomposites
nanocomposites
nanocrystals
agglomeration
modulus of elasticity
synthesis
composite materials
activity (biology)
Nanocrystals
tensile strength
Agglomeration
matrices
Elastic moduli
polycaprolactone
Composite materials
Tensile strength

Keywords

  • Co-precipitation
  • Hydroxyapatite
  • Nanocomposites
  • Poly(ε-caprolactone)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Synthesis of poly(ε-caprolactone)/hydroxyapatite nanocomposites using in-situ co-precipitation. / Choi, Won Young; Kim, Hyoun Ee; Oh, Se Yoon; Koh, Young-Hag.

In: Materials Science and Engineering C, Vol. 30, No. 5, 15.06.2010, p. 777-780.

Research output: Contribution to journalArticle

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AB - Hybrid poly(ε-caprolactone) (PCL)/hydroxyapatite(HA) nanocomposites with various HA contents (0, 10, 20, 30 wt.%) were synthesized using an in-situ co-precipitation method. All nanocomposites prepared contained elongated HA nanocrystals dispersed uniformly in the PCL matrix without severe agglomeration. The tensile strength decreased from 13.5 ± 0.4 to 10.2 ± 0.3 MPa with increasing the HA content from 0 to 30 wt.%, whereas the elastic modulus increased from 85 ± 4.2 to 183 ± 6.6 MPa. In addition, the ALP activity was increased remarkably due to the presence of bioactive HA nanocrystals within the composites. The nanocomposite containing 30 wt.% HA showed a higher elastic modulus and ALP activity than the conventional PCL/HA composite with an initial HA content of 30 wt.%. This was attributed to the nanoscale hybridization of the HA nanocrystals without significant agglomeration.

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