Preparation of poly(methyl methacrylate) grafted titanate nanotubes by in situ atom transfer radical polymerization
writer：Gao, Y.; Gao, X.; Zhou, Y. F.*; Yan, D. Y.*
keywords：poly(methyl methacrylate) grafted titanate nanotubes,in situ,ATRP
source：期刊
specific source：Nanotechnology 2008, 19, 495604. iopscience.iop.org/0957-4484/19/49/495604/pdf/0957-4484_19_49_49560
Issue time：2008年
This paper reports the successful preparation of core–shell hybrid nanocomposites by a ''grafting from'' approach based on in situ atom transfer radical polymerization (ATRP) of methyl methacrylate
(MMA) from titanate nanotubes (TNTs). Transmission electron microscope
(TEM) images of the products provide direct evidence for the formation
of a core–shell structure, possessing a hard core of TNTs and a soft
shell of poly-MMA (PMMA). Fourier-transform infrared spectroscopy
(FT-IR), hydrogen nuclear magnetic resonance (1H NMR),
scanning electron microscopy (SEM), and thermal gravimetric analysis
(TGA) were used to determine the chemical structure, morphology, and the
grafted PMMA quantities of the resulting products. The grafted PMMA
content was well controlled and increased with increasing
monomer/initiator ratio. Further copolymerization of hydroxyethyl
methacrylate (HEMA) with PMMA-coated TNTs as initiators was realized,
illustrating the ''living'' characteristics of the ATRP method used in
this paper.