Polymer‐Grafted Multiwalled Carbon Nanotubes through Surface‐Initiated Polymerization

Baskaran, Durairaj; Mays, Jimmy W.; Bratcher, Matthew S.

doi:10.1002/anie.200353329

Cited by 361 publications

(255 citation statements)

References 16 publications

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“…Prior to this, the chains were removed from the surface via hydrolysis following Baskaran's work. 28 The GPC obtained is illustrated in Fig. 3 which clearly proves that the polymerization is very well controlled, with a MWD (or PD) of 1.09.…”

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confidence: 66%

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Graphene oxide modified with PMMA via ATRP as a reinforcement filler

et al. 2010

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Graphene is a two-dimensional new allotrope of carbon, which is stimulating great curiosity due to its superior mechanical, electrical, thermal and optical properties. Particularly attractive is the availability of bulk quantities of graphene (G) which can be easily processed by chemical exfoliation, yielding graphene oxide (GO). The resultant oxygenated graphene sheets covered with hydroxyl, epoxy and carboxyl groups offer tremendous opportunities for further functionalization opening plenty of opportunities for the preparation of advanced composite materials. In this work poly(methyl methacrylate) (PMMA) chains have been grafted from the GO surface via atom transfer radical polymerization (ATRP), yielding a nanocomposite which was soluble in chloroform. The surface of the PMMA grafted GO (GPMMA) was characterized by AFM, HRTEM, Raman, FTIR and contact angle. The interest of these novel nanocomposites lies in their potential to be homogenously dispersed in polymeric dense matrices and to promote good interfacial adhesion, of particular relevance in stress transfer to the fillers. PMMA composite films were prepared using different percentages of GPMMA and pristine GO. Mechanical analysis of the resulting films showed that loadings as low as 1% (w/w) of GPMMA are effective reinforcing agents, yielding tougher films than pure PMMA films and even than composite films of PMMA prepared with GO. In fact, addition of 1% (w/w) of GPMMA fillers led to a significant improvement of the elongation at break, yielding a much more ductile and therefore tougher material. Thermal analysis showed an increase of the thermal stability properties of these films providing evidence that strong interfacial interactions between PMMA and GPMMA are achieved. In addition, AFM analysis, in friction force mode, is demonstrated to be an effective tool to analyse the surface filler distribution on polymer matrices.

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confidence: 66%

“…28 The resultant solution was filtered through a 0.3 mm Teflon filter to remove the graphene sheets and analysed by GPC.…”

Section: Go Nanosheets Functionalization With Pmmamentioning

confidence: 99%

Graphene oxide modified with PMMA via ATRP as a reinforcement filler

et al. 2010

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“…The main approaches for the fabrication of these materials can be divided into "grafting to" and "grafting from" approaches (Liu M. et al, 2009;Baskaran et al, 2004).…”

Section: Cnts-mips Composites: Innovative Materials For Analytical Dementioning

confidence: 99%

Carbon Nanotubes – Imprinted Polymers: Hybrid Materials for Analytical Applications

Cirillo¹,

Hampel²,

Puoci³

et al. 2012

Materials Science and Technology

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“…Also the atom transfer radical polymerization (ATRP) is a very powerful technique in functional macromolecular design and new material preparation, which has been applied successfully to the controlled functionalization of carbon nanotubes. Based on ATRP, some homopolymers and copolymers were grown on the surface of CNTs (Baskaran et al, 2004;Qin et al, 2004;Yao et al, 2003). Thus, such in situ surface initiating ATRP provides a remarkable route to tailor the structure and properties of the modified CNTs and a way to construct novel CNT-based hybrid nanomaterials (Kong et al, 2004).…”

Section: Micro and Nanostructured Materials In Electrochemical Sensormentioning

confidence: 99%