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Anionic polymerization of 2‐vinylpyridine: a computational study of solvent effects on polymerization stereochemistry.
Author(s) -
Pratt Lawrence M.,
Khan Ishrat M.,
HogenEsch Thieo E.
Publication year - 1996
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.1996.021971106
Subject(s) - polymerization , polymer chemistry , chemistry , solvent , anionic addition polymerization , solvent effects , ionic polymerization , radical polymerization , organic chemistry , polymer
Anionic polymerization of 2‐vinylpyridine shows significant solvent effects on the polymer stereochemistry. Polymerization with butyllithium in tetrahydrofuran (THF) yields a largely isotactic polymer, while polymerization with butyllithium in tetramethyl‐ethylenediamine (TMEDA) results in a material with nearly the same stereochemistry as radical polymerization. Semiempirical molecular orbital calculations were used to explain these solvent effects.