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Anionic block copolymerization of vinyl functionalized triphenylphosphines with styrene
Author(s) -
Börner Hans G.,
Heitz Walter
Publication year - 2000
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/(sici)1521-3935(20000301)201:6<740::aid-macp740>3.0.co;2-d
Subject(s) - comonomer , copolymer , styrene , polymer chemistry , anionic addition polymerization , tetrahydrofuran , butyllithium , chemistry , monomer , polymerization , organic chemistry , polymer , solvent
The anionic polymerization of vinyl monomers with electron donating substituents was investigated. The 4‐ and 3‐styryldiphenylphosphines were synthesized and homopolymerized at –85°C in tetrahydrofuran using sec ‐butyllithium as initiator. Block copolymerization studies were carried out using styrene as a comonomer. 4‐Styryldiphenylphosphine ( I ) forms a much more stabilized anionic chain end than styrene ( III ). Thus only the sequence III / I is effective in block copolymerization. In contrast, 3‐styryldiphenylphosphine ( II ) can be combined in both ways to block copolymers.