MACROPOROUS POLYMERS IN BEADED SHAPE, PROCESS FOR THEIR PREPARATION AND THEIR USE

摘要

Polymers (A) consist mainly of (1) units derived from monomers of formula (I) and (2) units derived from at least one other monomer. X = H or methyl; R = 1-12C aliphatic hydrocarbyl; Y = hydroxy or amino. The size of the polymer particles is 20-800 microns; they are practically spherical and have mean pore dia. 5-2000 (pref. 10-1000)nm. R = 1-6C aliphatic hydrocarbon, esp. methylene, and Y = hydroxy. A portion of Y may be replaced by spacer gps., esp. epoxy units at 0.1-20 mole % on total polymer. Pref. polymers contain 10-80 (esp. 15-60) mole % (I) units; 20-50 (esp. 30-50) mole % hydrophilic monomer units, and 1-50 (esp. 5-40) mole % crosslinking monomer. Opt. they also include 4-40 (8-20) mole % other non-hydrophilic, non-crosslinking monomers.