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Controlled radical polymerization of 4‐vinylpyridine
Author(s) -
Bohrisch Jörg,
Wendler Ulrich,
Jaeger Werner
Publication year - 1997
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.1997.030181104
Subject(s) - polymer chemistry , copolymer , cationic polymerization , dispersity , polymerization , radical polymerization , living free radical polymerization , nitroxide mediated radical polymerization , reversible addition−fragmentation chain transfer polymerization , macromonomer , ionic polymerization , anionic addition polymerization , styrene , polymer , polyelectrolyte , chemistry , materials science , organic chemistry
2,2,6,6‐Tetramethylpiperidine‐ N ‐oxyl (TEMPO)‐mediated free radical polymerization of 4‐vinylpyridine is found to proceed in a “controlled” manner. A linear increase of molecular weight along with an increase in conversion occurs at varying temperatures. Polymerization of styrene with a poly(4‐vinylpyridine) block as macromer results in block copolymers with narrow polydispersity. The polymers are characterized by different size exclusion chromatography methods and converted to cationic polyelectrolytes as well as to polysulfo‐ and polycarbobetaines.