Multi-walled carbon nanotubes covalently functionalized with polyhedral oligomeric silsesquioxanes for optical limiting

Zhang, Bin; Chen, Yu; Wang, Jun; Blau, Werner J.; Zhuang, Xiaodong; He, Nan

doi:10.1016/j.carbon.2010.01.015

Cited by 48 publications

(40 citation statements)

References 29 publications

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“…The organic pendent groups can be designed to achieve the desired affinity with the host polymeric matrix [1,2]. Using POSS in polymer based nanocomposites is a promising issue for the design 561 Structure-properties relationships of polyhedral oligomeric silsesquioxane (POSS) filled PS nanocomposites of materials with high-performance in several applications [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] such as low-dielectric applications [6], biomaterials for cardiovascular [14] and dental implants [16], organic solar cells [17], flame resistant nanocomposites [18,19], optical limiting [20], etc. An important feature of the POSS formulation is their one-pot preparation, i.e.…”

Section: Introductionmentioning

confidence: 99%

Structure-properties relationships of polyhedral oligomeric silsesquioxane (POSS) filled PS nanocomposites

Mantia

Dintcheva

Arrigo³

et al. 2012

Express Polym. Lett.

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Abstract. The polyhedral oligomeric silsesquioxane (POSS) additivated polystyrene (PS) based nanocomposites were prepared by melt processing and the structure-properties relationships of the POSS-PS systems were compared to those of the neat PS. In order to investigate the effect of these structural parameters on the final properties of the polymer nanocomposites, five different kinds of POSS samples were used, in particular, POSS with different inorganic cage and with different organic pendent groups. The rheological investigation suggests clearly that the POSS acts as a plasticizer and that the processability of the PS was positively modified. The affinity between the POSS samples and the PS matrix was estimated by the calculated theoretical solubility parameters, considering the Hoy's method and by morphology analysis. Minor difference between the solubility parameter of POSS and the matrix means better compatibility and no aggregation tendency. Furthermore, the POSS loading leads to a decrease of the rigidity, of the glass transition temperature and of the damping factor of the nanocomposite systems. The loading of different POSS molecules with open cage leads to a more pronounced effect on all the investigated properties that the loading of the POSS molecules with closed cage. Moreover, the melt properties are significantly influenced by the type of inorganic framework, by the type of the pendent organic groups and by the interaction between the POSS organic groups and the host matrix, while, the solid state properties appears to be influenced more by the kind of cage.

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Section: Introductionmentioning

confidence: 99%

Structure-properties relationships of polyhedral oligomeric silsesquioxane (POSS) filled PS nanocomposites

Mantia

Dintcheva

Arrigo³

et al. 2012

Express Polym. Lett.

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“…Based on our previous experience on the time required for the functionalization of fullerenes with FR [25], we chose a total volume of 2 mL for the Scheme 1. Syntheses of functionalized SWCNTs in flow through the 1,3-dipolar cycloaddition of azomethine ylides generated via the decarboxylation route (1), the electrocyclic ring opening of aziridines (2), and the tautomerization of imines (3) with alkyl (a), aryl (b) and heteroaryl (c) substituents coil reactor, corresponding to a residence time of 30 min with a flow rate of 4 mL/h. Scheme 1 illustrates the nine cycloaddition reactions that were carried out in this work to functionalize CNTs.…”

Section: Resultsmentioning

confidence: 99%

“…Carbon nanotubes (CNTs) are one-dimensional allotropes of carbon in which sp 2 -hybridized atoms are arranged into cylinders with diameters at the nanometer scale and lengths up to millimeters. They exhibit peculiar electronic, optical, structural, and mechanical properties for applications in different emerging fields [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chemistry of Carbon Nanotubes in Flow

Salice¹,

Rossi²,

Pace³

et al. 2014

J Flow Chem

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The covalent chemistry of carbon nanostructures has put forth a wide variety of interesting derivatives that widen their potential as functional materials. However, the synthetic procedures that have been developed to functionalize the nanostructures may require long reaction times and harsh conditions. In this paper, we study the continuous flow processing of single-wall carbon nanotubes with azomethine ylides and diazonium salts and demonstrate that this approach is effective to reduce reaction times and tune the properties of the functionalized carbon materials.

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“…The covalent attachment of appropriate moieties is anticipated to facilitate applications' development by improving solubility and ease of dispersion, and also providing for chemical attachment to surfaces and polymer matrices [12]. Polymer grafting can be achieved on acid-treated nanotubes [13] in which partial destruction of the tubular framework has been observed.…”

Section: Introductionmentioning

confidence: 99%

In situsynthesis and optical limiting response of poly(N-vinylcarbazole) functionalized single-walled carbon nanotubes

Li¹,

Niu²,

Chen³

et al. 2010

Nanotechnology

Self Cite

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A new poly(N-vinylcarbazole)-covalently grafted single-wall carbon nanotube (SWNT-PVK) hybrid material was synthesized by an in situ anionic polymerization reaction of N-vinylcarbazole and the negatively charged SWNTs. Incorporation of the PVK moieties onto the SWNTs' surface considerably improves the solubility and processability of SWNTs. At the same level of linear transmission, the SWNT-PVK dispersions show better optical limiting performance than the pristine SWNT dispersions, which shows this material to be a suitable candidate for viable optical limiting devices. Micro-plasma and/or micro-bubble induced nonlinear scattering is considered as the main mechanism for optical limiting.

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Multi-walled carbon nanotubes covalently functionalized with polyhedral oligomeric silsesquioxanes for optical limiting

Cited by 48 publications

References 29 publications

Structure-properties relationships of polyhedral oligomeric silsesquioxane (POSS) filled PS nanocomposites

Structure-properties relationships of polyhedral oligomeric silsesquioxane (POSS) filled PS nanocomposites

Chemistry of Carbon Nanotubes in Flow

In situsynthesis and optical limiting response of poly(N-vinylcarbazole) functionalized single-walled carbon nanotubes

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