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Facile Fabrication of Water Dispersible Latex Particles with Homogeneous or Chain‐Segregated Surface from RAFT Polymerization Using a Mixture of Two Macromolecular Chain Transfer Agents
Author(s) -
Sun Li,
Hong Liangzhi,
Wang Chaoyang
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201600003
Subject(s) - chain transfer , raft , polymerization , polymer chemistry , materials science , chemical engineering , micelle , copolymer , reversible addition−fragmentation chain transfer polymerization , polymer , macromolecule , methacrylate , chemistry , radical polymerization , organic chemistry , aqueous solution , composite material , biochemistry , engineering
Water dispersible latex particles with randomly mixed shells or chain segregated surface are synthesized from one‐pot reversible addition–fragmentation chain transfer heterogeneous polymerization of benzyl methacrylate (BzMA) using a mixture of poly(glycerol monomethacrylate) (PGMA) and poly(2,3‐bis(succinyloxy)propyl methacrylate) (PBSPMA) macromolecular chain transfer agents. In methanol, the two in situ synthesized PGMA‐ b ‐PBzMA and PBSPMA‐ b ‐PBzMA diblock copolymers coaggregate into spherical micelles, which contain PBzMA core and discrete PGMA and PBSPMA nanodomains on the shell. In contrast, in water–methanol mixture ( V / V = 9/1), latex particles with homogeneous distribution of PGMA and PBSPMA polymer chains on the shell are obtained. The reasons leading to formation of latex particles with homogenous or chain‐segregated surface are discussed, and polymerization kinetics and physical state of PBSPMA in methanol and water–methanol mixtures are ascribed. These polymeric micelles with patterned functional group on the surface are potentially important for application in supracolloidal hierarchical assemblies and catalysis.