) block copolymer nano-objects were prepared by photoinitiated RAFT dispersion polymerization of IBOA in ethanol/water at 40 °C using a PHEA macromolecular chain transfer agent (macro-CTA). Polymerizations proceeded rapidly upon exposure to visible light irradiation (
95%) being achieved within 30 min. The kinetics of polymerization indicated that the polymerization could be separated into two stages. Gel permeation chromatography (GPC) analysis demonstrated that good control was maintained throughout the photo-PISA process
and the final block copolymers exhibited relatively low polydispersities (
1.50). Spherical micelles and vesicles were prepared by this method.
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references
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