Crosslinking microspheres were firstly synthesized through emulsifier-free emulsion polymerization with styrene (St)
divinylbenzene (DVB) and dimethyl diallyl ammonium chloride (DADMAC) as the monomers. Futhermore
microporous structure in the polymer microspheres were knitted via Friedel-Craft acylation’s reaction with 1
2-dichloroethane as swelling agent
formaldehyde dimethyl acetal (FDA) as external crosslinker
and ferric trichloride (FeCl
3
) as catalyst. Finally
graphene oxide/microporous polymercomposite microspheres (GO/HCMPs) were prepared via cladding GO to HCMPs by means of electrostatic interactions. Scanning electron microscope (SEM) images
Zeta-potential and particle size analysis results show the surface of the microsphere is positive and the particle size of microspheres is monodisperse. Nitrogen sorption isotherm and pore size distribution indicate that HCMPs combine massive micropores and its specific surface area is as high as 902m
2
/g. Transmission electron microscope (TEM) images
Raman spectra and X-ray photoelectron spectroscopy (XPS) show that GO sheets are successfully coated on the surface of HCMPs.