V. Marchetti et al., Preparation and use of sawdusts bearing quaternary ammonium groups for removal of anionic dyes from water, HOLZ ROH WE, 58(1-2), 2000, pp. 53-56
Graft copolymerisation of [2-(methacryloyloxy)ethyl]-trimethylammonium chlo
ride onto sawdusts using KMnO4 as initiator was carried out in order to obt
ain new materials bearing quaternary ammonium for the removal of anionic dy
es from water. The anionic dye binding capacity was estimated by UV spectro
metry using Orange G as representative pollutant.