| Abstract: | Sodium salts of oxycellulose have been prepared by different techniques and under different conditions to obtain a white powder salt of lowest carboxyl group content. Also, Fe(III) and Al(III) salts have been prepared from oxycellulose and from its sodium salt. To prepare amphoteric cation exchange derivatives, anionic oxycellulose was cationized by reaction with Refaktan K, a common commercial cationizing agent which contains diepoxypropyl dimethyl ammonium chloride: different reaction conditions such as percentage cationizing agent, temperature and time have been investigated. Polyelectrolyte titration was used to measure the ion activity of the different products. Infrared spectroscopy of the different samples was carried out and the results analysed and discussed. © 2000 Society of Chemical Industry |
