Abstract
This work reports the synthesis of poly (monomethyl itaconate) grafted multi-layer graphene oxide (PMMI-g-GO) by atom transfer radical polymerization using activators regenerated by electron transfer (ARGET-ATRP). PMMI-g-GO presents outstanding properties, such as a high electrical conductivity (5.04 S m-1), low number of stacked graphene layers (6) and IG/I2D ratio of 2.05 estimated from Raman spectrum, which indicates the high quality of PMMI-g-GO as a graphenic material. In addition, polymer brushes based on PMMI represent a new green alternative for the development of polymer composite materials, since the monomer used for their production is obtained from a renewable source. Interestingly, the PMMI-g-GO nanomaterial is also capable of storing Li+ ions without the need of using electron conductive additives that are usually employed in the electrode's composition of conventional lithium ion batteries.
Highlights
The end of the last century and the beginning of this one were strongly marked by the advent of carbonaceous nanomaterials
X-ray photoelectron spectroscopy (XPS) of poly(monomethyl itaconate) (PMMI)-g-Graphene oxide (GO) was carried out using a PerkinElmer XPS–Auger spectrometer, model PHI 1257 (Massachusetts, USA), which includes an ultra-high vacuum chamber, a hemispheric electron energy analyzer and X-ray source with Kα radia tion unfiltered from an Al anode
Polymer brushes of high quality based on multi-layer graphene oxide grafted with poly (PMMI-g-GO) have been successfully synthetized by atom transfer radical polymerization using activators regenerated by electron transfer (ARGET-ATRP)
Summary
The end of the last century and the beginning of this one were strongly marked by the advent of carbonaceous nanomaterials. The surface-initiated controlled radical polymerization (SI-CRP) is a versatile approach for modifying the material surface by a grafting reaction, generating indi vidual polymer chains linked by one of their ends to the surface. This type of structure is known as polymer brush [30]. This work reports on the synthesis of multi-layer graphene oxide functionalized with poly (monomethyl itaconate) using the ARGET-ATRP technique (Fig. 2). This material has interesting structural and morphological characteristics and a high electrical conductivity. We explore its use as electrodes for Li ion batteries [45]
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