{HEAD ~ Porous cellulose beads} are prepared by distributing {TAIL ~ droplets} of a solvent mixture containing a cellulose derivative into an aqueous solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads 
are prepared by distributing
{ HEAD ~ Porous cellulose beads } are prepared by distributing { TAIL ~ droplets } of a solvent mixture containing a cellulose derivative into an aqueous solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads
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