Enhanced Polymerization in High-Pressure Carbon Dioxide

Serum exchange [16], film evaporation, hollow fiber dialysis, and micro- and ultrafiltration [17] can also be effectively used to remove residual monomer on the laboratory scale. However, for larger scale applications these techniques are less suitable. [Pg.307]

Alternative Technology High-Pressure Carbon Dioxide [Pg.307]

To investigate the effect of high-pressure CO2 on the polymerization reaction as well as to determine the amount of monomer inside the polymer particles, electron beam experiments have been performed [19]. Pulsed electron beam polymerization involves the generation of radicals in the aqueous phase, this being activated by an electron beam. These radicals initiate the polymerization of the residual monomer inside the latex particles. Based on the molecular weight of the newly formed polymer chains, the local monomer concentration in the polymer particles can be calculated. The growth time of a polymer chain is directly [Pg.307]