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Characterization of in situ prepared nano‐hydroxyapatite/polyacrylic acid (HAp/PAAc) biocomposites
Author(s) -
ElBahy G. S.,
Abdelrazek E. M.,
Allam M. A.,
Hezma A. M.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.34413
Subject(s) - polyacrylic acid , thermogravimetric analysis , materials science , differential scanning calorimetry , thermal stability , fourier transform infrared spectroscopy , scanning electron microscope , nanoparticle , polymer , chemical engineering , transmission electron microscopy , polymer chemistry , composite material , nanotechnology , thermodynamics , physics , engineering
Nanoparticles hydroxyapatite (HAp) was prepared via an in situ biomimetic process with polyacrylic acid (PAAc) as a host polymeric material. Fourier transform infrared spectroscopy, transmission electron microscopy, scanning electron microscopy, X‐ray diffraction, thermogravimetric analysis, and differential scanning calorimetry were used to test the physical and chemical characteristics of biocomposites. The formation of HAp is confirmed by energy dispersion X‐ray analysis. Chemical binding between inorganic HAp and PAAc was investigated and discussed. HAp formation was initiated through the interaction of Ca 2+ ions with the negative side groups of the polymer surface. The results showed that the biocomposites were formed with good homogeneity and thermal stability. Nanoparticles of HAp were uniformly distributed in the polymeric matrices. The resulting new materials are hoped to be applicable in the biomedical fields. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011