Synthesis and properties of macromer-grafted polymers for noncovalent functionalization of multiwalled carbon nanotubes

Morishita, Takuya; Matsushita, M.; Katagiri, Yoshihide; Fukumori, Kenzo

doi:10.1016/j.carbon.2009.05.032

Cited by 33 publications

(24 citation statements)

References 20 publications

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“…Identical sites of SMIPs are distributed on the surface of supports, for this reason, mass transfer is accelerated and binding capacity is improved [16,22]. SMIPs based on various functional materials, such as SiO 2 [23], TiO 2 [24], grapheme [25], carbon nanotubes [26], and carbon microspheres (CMSs) have been reported. Among the various options, CMSs are one of the ideal support materials for their good thermal stability, excellent mechanical performance, and acid/base resistance [27].…”

Section: Introductionmentioning

confidence: 99%

“…The overlapped FT-IR spectra of DBT and MAA (a) and FT-IR spectrum ofDBT-MAA complex (b) negative charge of C(26) in complex decreased by 0.006, while the negative charge of O(28) increased by 0.008. During the compounding process, the charges shifted from DBT to MAA, which indicate the electrostatic interaction between DBT and MAA[41].Additionally, hydrogen bond also strengthens the interaction betweenDBT and MAA.…”

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confidence: 99%

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Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

et al. 2014

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Three candidate monomers (methacrylic acid, 2-vinyl pyridine, and 2-acrylamide-2-methyl sulfuric acid) were screened through computational simulation method to prepare effective surface molecularly imprinted polymers (SMIPs) based on carbon microspheres (CMSs) for dibenzothiophene removal from fuels. The optimized structures of complexes were described using density functional theory calculation at B3LYP/6-311??G(d,p) level and frequency calculations for each molecule and complex were conducted to provide insights into electrostatic interaction between monomers and template DBT. Besides, the reliability of computational simulation method for screening was tested by comparing the theoretical data with experimental results from gas chromatography. The computational data suggest that methacrylic acid (MAA) was the preferred monomer with the largest absolute binding energy (14.79 kJ mol -1 ), which is in accordance with the experimental results. Thesaturated adsorption of PMAA-SMIPs/CMSs was the best (41.73 mg g -1 ). Besides, PMAA-SMIPs/CMSs show highest special selectivity for dibenzothiophene against benzothiophene, and the relative selectivity coefficient k 0 was 2.02. The computational simulation method can be effectively used in monomer screening. This work may help understand the mechanisms of polymerization and recognition process between SMIPs and template and design SMIPs with improved adsorption performance.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

et al. 2014

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“…The variety of pyrene-containing polymeric surface modifier have been prepared for this purpose. Very recently, improvements of dispersibility in organic media in the presence of an α-pyrene polymer and pyrene-containing branched polymer were separately reported by Meuer [15] and Morishita [16], respectively. However, the effect of polymer architecture on dispersion of CNTs has not been investigated.…”

Section: Introductionmentioning

confidence: 97%

Dispersion Behavior of Multi-walled Carbon Nanotubes with Pyrene-Containing Linear and Graft Polymers as Non-covalent Surface Modifiers

Matsuoka

Yamamoto

Adachi

et al. 2010

Designed Monomers and Polymers

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Various effects on dispersion of multi-walled carbon nanotubes (MWCNTs) in organic solvent and in polymer film by means of pyrene-containing polymeric surface modifiers were investigated. Graft surface modifiers of poly(ethylene oxide) and of polystyrene with pyrene groups were synthesized by radical co-polymerization of corresponding macromonomers and a pyrene-containing methacrylate monomer. The effect of pyrene content on MWCNT dispersion was examined in THF with polymers of different unit ratio of macromonomer to pyrene monomer. The effect of the polymer architecture was explored with a linear polymer having a pyrene end-group and graft polymers having pyrene units. As a result, the dispersibility of MWCNT in THF was improved with increasing pyrene content in the graft polymer and was also improved by a branched architecture of the polymeric non-covalent surface modifier. Preparation of a homogeneously MWCNT dispersed polystyrene film was investigated with a pyrene-containing graft polystyrene as a compatibilizer between the polystyrene matrix and MWCNT as well.

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“…Two strategies, including noncovalent and covalent modification, have been developed to modify the CNTs to overcome the solubility limitations [10][11][12][13][14][15][16]. In the cased of the noncovalent modification strategy, a rather limited surfactants and compounds with benzene ring or condensed aromatic ring are usually used to disperse the CNTs bundle.…”

Section: Introductionmentioning

confidence: 99%

<i>β</i>-cyclodextrin Covalently Functionalized Single-Walled Carbon Nanotubes: Synthesis, Characterization and a Sensitive Biosensor Platform

Gao¹,

Cao²,

Song³

et al. 2011

JBNB

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In this study, we presented the preparation of β-cyclodextrin (β-CD) covalently functionalized single-walled carbon nanotubes (SWCNTs) and its application in modifying the solid glass carbon electrode (GCE). Cyclic voltammetry (CV) method was employed to evaluate the performance of the modified GCE. Solubility experiment indicated the conjugation of SWCNTs and β-CD, SWCNTs-β-CD with 8 wt% β-CD content could be well dispersed in water. High-resolution transmission electron microscopy (HRTEM) demonstrated that the aggregated SWCNTs bundle were effectively exfoliated to small bundle, even individual tube. The β-CD component was grafted on the side walls as well as tips of SWCNTs, and the grafted β-CD component was not uniformly coated on the surface of SWCNTs. The CV measurements indicated the performance of the GCE modified by SWCNTs-β-CD was better than that of the GCE modified by the hybrid of SWCNTs

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Synthesis and properties of macromer-grafted polymers for noncovalent functionalization of multiwalled carbon nanotubes

Cited by 33 publications

References 20 publications

Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

Dispersion Behavior of Multi-walled Carbon Nanotubes with Pyrene-Containing Linear and Graft Polymers as Non-covalent Surface Modifiers

<i>β</i>-cyclodextrin Covalently Functionalized Single-Walled Carbon Nanotubes: Synthesis, Characterization and a Sensitive Biosensor Platform

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Synthesis and properties of macromer-grafted polymers for noncovalent functionalization of multiwalled carbon nanotubes

Cited by 33 publications

References 20 publications

Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

Functional monomer screening and preparation of dibenzothiophene-imprinted polymers on the surface of carbon microsphere

Dispersion Behavior of Multi-walled Carbon Nanotubes with Pyrene-Containing Linear and Graft Polymers as Non-covalent Surface Modifiers

&lt;i&gt;β&lt;/i&gt;-cyclodextrin Covalently Functionalized Single-Walled Carbon Nanotubes: Synthesis, Characterization and a Sensitive Biosensor Platform

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<i>β</i>-cyclodextrin Covalently Functionalized Single-Walled Carbon Nanotubes: Synthesis, Characterization and a Sensitive Biosensor Platform