Limits...
Non-covalent polymer wrapping of carbon nanotubes and the role of wrapped polymers as functional dispersants

View Article: PubMed Central - PubMed

ABSTRACT

Carbon nanotubes (CNTs) have been recognized as a promising material in a wide range of applications from biotechnology to energy-related devices. However, the poor solubility in aqueous and organic solvents hindered the applications of CNTs. As studies have progressed, the methodology for CNT dispersion was established. In this methodology, the key issue is to covalently or non-covalently functionalize the surfaces of the CNTs with a dispersant. Among the various types of dispersions, polymer wrapping through non-covalent interactions is attractive in terms of the stability and homogeneity of the functionalization. Recently, by taking advantage of their stability, the wrapped-polymers have been utilized to support and/or reinforce the unique functionality of the CNTs, leading to the development of high-performance devices. In this review, various polymer wrapping approaches, together with the applications of the polymer-wrapped CNTs, are summarized.

No MeSH data available.


(a) SEM image of MWCNTs decorated by disc-shaped PE single crystals. (b) TEM image of enlarged PE/MWCNT shish kebab structure. (c) Schematic representation of the PE/CNT shish kebab structure. The PE forms folded lamellar single crystals on the CNT surface with polymer chains perpendicular to the lamellae. Reproduced with permission from C Y Li et alAdv. Mater.17 1198. Copyright 2005 John Wiley and Sons.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC5036478&req=5

Figure 14: (a) SEM image of MWCNTs decorated by disc-shaped PE single crystals. (b) TEM image of enlarged PE/MWCNT shish kebab structure. (c) Schematic representation of the PE/CNT shish kebab structure. The PE forms folded lamellar single crystals on the CNT surface with polymer chains perpendicular to the lamellae. Reproduced with permission from C Y Li et alAdv. Mater.17 1198. Copyright 2005 John Wiley and Sons.

Mentions: Another interesting example was reported by Naito et al [148]. They developed poly(dialkylsilane)-wrapped SWCNTs through a strong CH−π interaction between the alkyl side chains and the SWCNT surfaces. In another example, the CH–π interaction between polyethylene (PE) and highly ordered graphitic surfaces of the CNTs induced the crystallization PE [149]. As a result, formation of the ordered shish kebab structure was observed (figure 14) [150, 151].


Non-covalent polymer wrapping of carbon nanotubes and the role of wrapped polymers as functional dispersants
(a) SEM image of MWCNTs decorated by disc-shaped PE single crystals. (b) TEM image of enlarged PE/MWCNT shish kebab structure. (c) Schematic representation of the PE/CNT shish kebab structure. The PE forms folded lamellar single crystals on the CNT surface with polymer chains perpendicular to the lamellae. Reproduced with permission from C Y Li et alAdv. Mater.17 1198. Copyright 2005 John Wiley and Sons.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC5036478&req=5

Figure 14: (a) SEM image of MWCNTs decorated by disc-shaped PE single crystals. (b) TEM image of enlarged PE/MWCNT shish kebab structure. (c) Schematic representation of the PE/CNT shish kebab structure. The PE forms folded lamellar single crystals on the CNT surface with polymer chains perpendicular to the lamellae. Reproduced with permission from C Y Li et alAdv. Mater.17 1198. Copyright 2005 John Wiley and Sons.
Mentions: Another interesting example was reported by Naito et al [148]. They developed poly(dialkylsilane)-wrapped SWCNTs through a strong CH−π interaction between the alkyl side chains and the SWCNT surfaces. In another example, the CH–π interaction between polyethylene (PE) and highly ordered graphitic surfaces of the CNTs induced the crystallization PE [149]. As a result, formation of the ordered shish kebab structure was observed (figure 14) [150, 151].

View Article: PubMed Central - PubMed

ABSTRACT

Carbon nanotubes (CNTs) have been recognized as a promising material in a wide range of applications from biotechnology to energy-related devices. However, the poor solubility in aqueous and organic solvents hindered the applications of CNTs. As studies have progressed, the methodology for CNT dispersion was established. In this methodology, the key issue is to covalently or non-covalently functionalize the surfaces of the CNTs with a dispersant. Among the various types of dispersions, polymer wrapping through non-covalent interactions is attractive in terms of the stability and homogeneity of the functionalization. Recently, by taking advantage of their stability, the wrapped-polymers have been utilized to support and/or reinforce the unique functionality of the CNTs, leading to the development of high-performance devices. In this review, various polymer wrapping approaches, together with the applications of the polymer-wrapped CNTs, are summarized.

No MeSH data available.