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  • Title: Nanocomposites based on poly-D,L-lactide and multiwall carbon nanotubes.
    Author: Krul LP, Volozhyn AI, Belov DA, Poloiko NA, Artushkevich AS, Zhdanok SA, Solntsev AP, Krauklis AV, Zhukova IA.
    Journal: Biomol Eng; 2007 Feb; 24(1):93-5. PubMed ID: 16908214.
    Abstract:
    A possibility of poly-D,L-lactide modification by multiwall carbon nanotubes (MWCNT) has been shown. MWCNT were prepared from methane-air mixture upon atmospheric pressure without catalyst on high voltage atmospheric pressure discharge plasma set-up. According to scanning and transmission electronic microscope data carbon nanotubes diameters were within 12-60 nm. Quantities of MWCNT incorporated did not exceed 0.5%. Nanocomposites were obtained by sonification of mixture of a poly-D,L-lactide solution in chloroform and MWCNT followed by film casting on glass substrates. Tensile strength and thermomechanical properties of the dried composite films were investigated. Introduction of MWCNT into poly-D,L-lactide has been shown to cause the enhanced polymer stability to thermal oxidative destruction. Taking into account the results obtained one could anticipate that implants from nanocomposites of poly-D,L-lactide with MWCNT would be dispersed in a living organism more slowly as compared to implants from pure poly-D,L-lactide without additives.
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