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Updated: May 31, 2026

Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness
Published on: April 1, 2018
Selective Localization and Migration of Multiwalled Carbon Nanotubes in Blends of Polycarbonate and
Andreas Göldel1, Gaurav Kasaliwal, Petra Pötschke
1Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069 Dresden, Germany.
Abstract:
Multiwalled carbon nanotubes (MWNTs) have been introduced into blends of polycarbonate (PC) and poly(styrene-acrylonitrile) (SAN) by melt mixing in a microcompounder. Co-continuous blends are prepared by either pre-compounding low amounts of nanotubes into PC or SAN or by mixing all three components together. Interestingly, in all blends, regardless of the way of introducing the nanotubes, the MWNTs were exclusively located within the PC phase, which resulted in much lower electrical resistivities as compared to PC or SAN composites with the same MWNT content. The migration of MWNTs from the SAN phase into the PC phase during common mixing is explained by interfacial effects.
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