Paper Title:
A Novel Preparation Method for Nano-HA/PLA Composite with Grafted PLA
  Abstract

Good interfacial interaction is crucial for preparation of inorganic-organic materials at a nanometer level. Poly(α-methacrylic acid) (PMAA) was grafted on the PLA surfaces via photooxidization and subsequent UV induced polymerization in an attempt to synthesize nano-hydroxyapatite/poly(lactide) (n-HA/PLA) composites. Grafting of PMAA on the PLA surface was confirmed using FTIR analysis and the size distribution measurement of the grafted-PLA (g-PLA) particles. n-HA/g-PLA composites were in situ synthesized via dropwise addition of Ca2+- and g-PLA containing solution to PO4 3-- solution. The prepared composites were characterized by FTIR, XRD,SEM and TEM means. Analytical results indicated that the g-PLA acts as a template to manipulate the nucleation and growth of n-HA crystals and thereby to control the morphology, size and anisotropy of n-HA crystals and their distribution over the organic phase. Chemical linkages and/or interfacial interactions between the n-HA and the g-PLA in the n-HA/g-PLA composite were further discussed.

  Info
Periodical
Key Engineering Materials (Volumes 309-311)
Main Theme
Edited by
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
Pages
1105-1108
DOI
10.4028/www.scientific.net/KEM.309-311.1105
Citation
Y. M. Xiao, X. D. Li, H. S. Fan, X. D. Zhu, L. Z. Teng, Z. W. Gu, X. D. Zhang, "A Novel Preparation Method for Nano-HA/PLA Composite with Grafted PLA ", Key Engineering Materials, Vols. 309-311, pp. 1105-1108, 2006
Online since
May 2006
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Price
$32.00
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