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Styrene/Maleic Anhydride Macro‐RAFT‐Mediated Encapsulation
Author(s) -
Klumperman Bert
Publication year - 2006
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200600112
Subject(s) - miniemulsion , raft , chain transfer , copolymer , polymer chemistry , polymerization , styrene , reversible addition−fragmentation chain transfer polymerization , materials science , maleic anhydride , living polymerization , chemistry , polymer , radical polymerization , composite material
Abstract Summary: Luo et al. have published a method for the encapsulation of oil droplets by a polymer shell to form nanosized liquid‐filled particles. They use a water‐soluble styrene–maleic anhydride copolymer that carries a thiocarbonyl thio end‐group. This end‐group is able to induce reversible addition‐fragmentation chain transfer (RAFT)‐mediated polymerization, which leads to a miniemulsion polymerization‐like system. Here the polymerization is confined to the outer shell of a droplet/particle. Consequently, monomer is depleted from the centre of the particle, which leaves a liquid core surrounded by a polymer shell. The technique seems robust and opens up new pathways to nanostructured materials.Morphology development in the miniemulsion polymerization of styrene mediated by an aminolyzed STY/MAnh macro‐RAFT agent (black chains: the aminolyzed STY/MAnh copolymer, black dots: thiocarbonyl thio moieties that mediate the polymerization, red chains: styrene homopolymer).