Bead Cellulose

Abstract

Abstract A new polymeric structure has been developed which fills a blank in available hydrophilic supports for separation processes. Bead cellulose is a pure regenerated cellulose which is prepared by a modified viscose procedure. It is characterized by a regular spherical shape of individual particles, controlled porosity, accessibility for high molecular weight substances, high deformation stability and adequate chemical reactivity. Diverse uses of this new material are described, viz., physical supports, chromatographic materials, dried preparations and various derivatives with different functions like ion exchangers, metal chelating adsorbents, chemisorbents, affinity adsorbents, immobilized enzymes. Bead cellulose can also be coupled with various active substances giving composite systems.