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In this paper, we have introduced a new effective approach to graft polyarylene ether nitrile containing carboxyl groups (PEN-COOH) on the surface of silica (SiO 2 ) particles which were further confirmed by Fourier transform infrared spectra and transmission electron microscopy analyses. Polyarylene ether nitrile (PEN) composite films with SiO 2 -PEN particles were prepared through...
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