Covalent chemistry of single-wall carbon nanotubes

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

“…For that purpose, proper chemical treatments are required to attach functional groups to filler surface which can react with the matrix [65][66][67][68][69][70]. Figure 5a-c shows three types of surface functionalization of CNT with polymer chains, hydroxyl, and carboxyl groups, respectively.…”

Reactive microencapsulation of carbon allotropes in polyamide shell-core structures and their transformation in hybrid composites with tailored electrical properties

“…Dispersion can be enhanced by surface modification, covalent or noncovalent functionalization of the carbon filler [5][6][7]. Such treatments result in better adhesion of the filler to the host polymer [8], however they often create surface defects on the filler particles' surface and decrease their inherent conductivity [9,10]. The relatively complex chemistry and/or costly reagents of most functionalization procedures additionally impede a cost-effective scale-up to industrial production of the CNT-containing composites and limit their use for high price applications only [3].…”

Functionalization of single-walled carbon nanotubes with N-[3-(trimethoxysilyl)propyl]ethylenediamine and its cobalt complex

“…The major challenge as mechanical reinforcement for SWCNTs is to overcome its tendency to aggregate due to van der Waals interactions and the π-π stacking, which usually leads to formation of large bundles of SWCNTs and poor dispersion, particularly more pronounced in inorganic matrixes, such as ceramics. Two of the key challenges in realizing the full potential of multifunctional nanocomposites based on carbon nanotubes are securing a reliable control over their surface chemistry, and achieving monodispersity in terms of length, diameter and helicity [4][5]. Several techniques are being employed to overcome the difficulties with regards to incorporation of carbon nanotubes in structural and functional ceramics, through covalent, electrostatic or non-covalent modification.…”