Polymer microparticles and production method for the same
AssigneesRicoh Company, Ltd., National University Corporation Toyohashi University of Technology
InventorsEri Yoshida, Chiaki Tanaka
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Abstract
A method for producing polymer particles which includes: forming polymer particles by heterogeneous polymerization of a monomer in a supercritical fluid and/or subcritical fluid, wherein a radical polymerization initiator (I) having in a molecular at least a group having radical-generation capability and a group having affinity for the supercritical fluid and/or subcritical fluid, and a radical polymerization initiator (II) are used in combination.
Claims15
A method for producing polyhedral polymer particles comprising:
- forming polymer particles by heterogeneous polymerization of a monomer in a supercritical fluid and/or subcritical fluid,
- wherein a radical polymerization initiator (I) having in a molecule at least a group having radical-generation capability and a group having affinity for the supercritical fluid and/or subcritical fluid, and a radical polymerization initiator (II) are used in combination, and the radical polymerization initiator (I) has a number-average molecular weight more than 50,000.
Polyhedral polymer particles obtained by a method for producing polyhedral polymer particles, which method comprises forming polymer particles by heterogeneous polymerization of a monomer in a supercritical fluid and/or subcritical fluid, wherein a radical polymerization initiator (I) having in a molecule at least a group having radical-generation capability and a group having affinity for the supercritical fluid and/or subcritical fluid, and a radical polymerization initiator (II) are used in combination.
Dependencies are inferred from the claim text.