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Synthesis of PMMA-co-PMAA Copolymer Brush on Multi-Wall Carbon Nanotubes

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DOI: 10.4236/jsemat.2012.223034    5,003 Downloads   8,719 Views   Citations


Poly(methyl methacrylate)/poly(methacrylamide) copolymer (PMMA-co-PMAA) was synthesized by a free radical copolymerization of MMA and MAA monomers in methylethyl ketone using AIBN as radical initiator. Multi-wall carbon nanotubes (MWCNT) were oxidized in KMnO4 acidic suspension. Carboxyl groups on the surface oxidized MWCNT were reacted with primary amide group of PMMA-co-PMAA copolymer in MEK solution under ultrasound to form polymer brush on the surface of MWCNT. With the help of TG analyses the amount of covalently grafted PMMA-co-PMAA copolymer onto MWCNT surface was determined as ?47 wt%. TEM analyses identified thin co-polymer layer adhered onto MWCNT surface with average thickness ?5 nm.

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The authors declare no conflicts of interest.

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P. Slobodian, P. Svoboda, P. Riha, R. Boruta and P. Saha, "Synthesis of PMMA-co-PMAA Copolymer Brush on Multi-Wall Carbon Nanotubes," Journal of Surface Engineered Materials and Advanced Technology, Vol. 2 No. 3A, 2012, pp. 221-226. doi: 10.4236/jsemat.2012.223034.


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