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RAFT Synthesis and Solution Properties of pH‐Responsive Styrenic‐Based AB Diblock Copolymers of 4‐Vinylbenzyltrimethylphosphonium Chloride with N , N ‐Dimethylbenzylvinylamine
Author(s) -
Lowe Andrew B.,
Wang Ran,
Tiriveedhi Venkataswarup,
Butko Peter,
McCormick Charles L.
Publication year - 2007
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.200700280
Subject(s) - copolymer , polymer chemistry , raft , chemistry , self assembly , chloride , amine gas treating , tertiary amine , polymer , organic chemistry
The RAFT synthesis and solution properties of AB block copolymers of 4‐vinylbenzyltrimethylphosphonium chloride (TMP) and N , N ‐dimethylbenzylvinylamine (DMBVA) is described. The pH‐dependent self‐assembly properties of the AB diblock copolymers were examined using of 1 H NMR, DLS, and fluorescence spectroscopy. The size of the polymeric aggregates depends on the block copolymer composition/molecular mass. The self assembly is completely reversible, as predicted from the tunable hydrophilicity/hydrophobicity of the DMBVA residues. The AB diblock copolymers can be effectively locked in the self‐assembled state using a straightforward core crosslinking reaction between the tertiary amine residues of DMBVA and difunctional 1,4‐bis(bromomethyl)benzene.