Vesiculated polymer particles
The invention provides a method of preparing an aqueous dispersion of vesiculated polymer particles, the method comprising: preparing a dispersion of polymerisable particles within a continuous aqueous phase, the polymerisable particles having a structure that is defined by an outer organic phase that comprises one or more ethylenically unsaturated monomers and surrounds an inner aqueous phase, said inner aqueous phase defining a single void within the polymerisable particle, wherein a RAFT agent functions as a stabiliser for the outer organic phase within the continuous aqueous phase, and wherein a RAFT agent functions as a stabiliser for the inner aqueous phase within the outer organic phase; and polymerising the one or more ethylenically unsaturated monomers under the control of a RAFT agent functioning as said stabiliser to form the aqueous dispersion of vesiculated polymer particles.
HAWKETT BRIAN STANLEY; SUCH CHRISTOPHER HENRY; NGUYEN DUC NGOC; BLOM ANNABELLE CHRISTINA MARY; CAREY MICHELLE JOCELYN; PHAM THI
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