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Living Anionic Polymerization of Styrene Derivatives Containing Triphenylamine Moieties through Introduction of Protecting Group.
- Source :
-
Macromolecules . Oct2010, Vol. 43 Issue 20, p8400-8408. 9p. - Publication Year :
- 2010
-
Abstract
- We carried out the anionic polymerization of styrene derivatives containing the triphenylamine moieties, 4,4â²-vinylphenyltriphenylamine (A) and 4,4â²-vinylphenyl-N,N-bis(4-tert-butylphenyl)benzenamine (B), with a variety of initiators in tetrahydrofuran (THF) at â78 °C. The anionic polymerization of Awas performed with sec-butyllithium, sec-butyllithium with additives, and (diphenylmethyl)potassium in THF at â78 °C. In all cases, an intermolecular side reaction took place between the polymer chains during polymerization. In contrast, the anionic polymerization of Bwas carried out successfully with sec-butyllithium and potassium naphthalenide in THF at â78 °C for 0.5 h without any observed intermolecular side reaction. Well-defined poly(B)s with predictable molecular weights and narrow molecular weight distributions (Mw/Mn= 1.05â1.11) were obtained. The sequential block copolymerization of Bwith styrene and 2-vinylpyridine was attempted subsequently, and the well-defined block copolymers, polystyrene-b-poly(B) and poly(B)-b-poly(2-vinylpyridine), were synthesized quantitatively. The solubilities as well as the thermal and optical properties of the resulting poly(B) were investigated. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00249297
- Volume :
- 43
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 54844068
- Full Text :
- https://doi.org/10.1021/ma1014353