Abstract
Amphiphilic polymer particle which have 2-[p-(1,1,3,3-tetramethyl-butyl) phenoxy-polyethoxy] ethyl groups was a good support of the immobilized enzymes for use in the enzymatic reactions in organic solvents. To develop amphiphilic polymer particle, amphiphilic methacrylic monomers (MAX-n) having a 2-[p-(1,1,3,3-tetramethyl-butyl) phenoxy-polyethoxy] ethyl group were synthesized and polymerizaed. The radical polymerization kinetics of MAX-n in solution polymerization and seed polymerization were then studied. In the solution copolymerization of styrene and MAX-n, when the number n of the ethylene oxide units was high, the steric hindrance of the side chain of MAX-n resulted in the low propagation rate constant kBA and the high monomer reactivity ratio. In the seed polymerization, using the kinetic parameter obtained at solution polymerization and the experimentally measured value of mass fraction of polymer at which the glass transition occur, the time course of conversion of the seed copolymerization of MAX-n and styrene was simulated.
