The successful preparation of spherical polybenzimidazole beads is reported. A non-aqueous suspension methodology is employed similar to that described in an earlier patent publication. A series of surface active agents, low molecular weight ones and polymeric dispersants, have been tested for their potential use in a high temperature suspension experiment. Polymeric dispersants proved most effective. Results on particulate formation as well as properties of the afforded polymer particles are discussed. A procedure for a successful non-aqueous suspension experiment is also given.
Посилання на статтю:
Preparation of spherical polybenzimidazole particulates using a non-aqueous suspension methodology / Thomas Brock and David C. Sherrington // Polymer. – 1992. – Vol 33. – P. 1773-1777.