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Surface Area Effects in Hydroxyapatite/Poly( ε ‐caprolactone) Nanocomposites
Author(s) -
Kaur Jasmeet,
Shofner Meisha L.
Publication year - 2009
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200800508
Subject(s) - nanocomposite , nanoparticle , materials science , amorphous solid , caprolactone , composite material , glass transition , reinforcement , polymer , chemical engineering , microemulsion , specific surface area , surface modification , polymer chemistry , nanotechnology , chemistry , copolymer , catalysis , organic chemistry , pulmonary surfactant , engineering
Abstract In order to understand the contribution of nanoparticle surface area to the properties of nanocomposite materials, hydroxyapatite nanoparticles with different specific surface areas (60 m 2 · g −1 and 111 m 2 · g −1 ) were synthesized using reverse microemulsion and processed into nanocomposites. Experimental results indicated that the thermomechanical reinforcement did show a dependence on nanoparticle surface area, although the transition temperatures did not. The reinforcement trends were dependent on temperature, suggesting that the nanoparticles had a greater impact on the amorphous polymer chains. The reinforcement above T g may be plotted against nanoparticle surface area to obtain a single reinforcement trend, suggesting that surface area is a general parameter for nanocomposite property control.