Nanocomposites based on poly-D,L-lactide and multiwall carbon nanotubes.
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.
Krul
L P
LP
Belarus State University, 14 Leningradskaja Street, 220050 Minsk, Belarus. hmc@bsu.by
Volozhyn
A I
AI
Belov
D A
DA
Poloiko
N A
NA
Artushkevich
A S
AS
Zhdanok
S A
SA
Solntsev
A P
AP
Krauklis
A V
AV
Zhukova
I A
IA
D001672:Biocompatible Materials / Q000737:chemistry*; D008422:Materials Testing; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011091:Polyesters / Q000737:chemistry*; D013696:Temperature
D001672:Biocompatible Materials; D037742:Nanotubes, Carbon; D011091:Polyesters; C033616:poly(lactide)