Synthesis of polymer grafted carbon nanotubes by nitroxide mediated radical polymerization in the presence of spin-labeled carbon nanotubes
2006; Elsevier BV; Volume: 43; Issue: 1 Linguagem: Inglês
10.1016/j.eurpolymj.2006.09.018
ISSN1873-1945
AutoresDeqin Fan, Junpo He, Wei Tang, Jiangtao Xu, Yuliang Yang,
Tópico(s)Polymer Nanocomposites and Properties
ResumoMultiwalled carbon nanotubes (MWCNT) were grafted with polystyrene by in situ nitroxide mediated radical polymerization in the presence of TEMPO (2,2,6,6-tetramethylpiperidinyl-1-oxyl) functionalized MWCNT, which was synthesized by the reaction between 4-hydroxyl-TEMPO (HO–TEMPO) and carbonyl chloride groups on the MWCNT. Although the controllability of the polymerization was not high, highly soluble grafted MWCNTs were indeed obtained, indicating that the graft polymerization was efficient. The resulting polystyrene grafted MWCNTs were easily defunctionalized at room temperature using 3-chloroperoxybenzioc acid. TEM, SEM, and TGA were employed to determine the structure, morphology, and the grafting quantities of the resulting products.
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