Anionic Copolymerization of Butadiene and 1,1-Diphenylethylene
- 1 January 1970
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 43 (1) , 148-151
- https://doi.org/10.1246/bcsj.43.148
Abstract
The anionic copolymerization of butadiene (M1) and 1,1-diphenylethylene was investigated in tetrahydrofuran (THF) and benzene, using n-butyllithium (n-BuLi), Na-naphthalene, and Na-and K-dispersions as initiators. An alternating copolymer was formed in THF, where the reaction proceeded without termination and chain-transfer reactions. The monomer reactivity ratios, r1 were 0.13 (Li+), 0.09 (Na+), and 0.09 (K+) in THF at 0°C. The r1 values in benzene at 40°C were 54 (Li+), 0.71 (Na+), and 0.10 (K+). The order of rate constants in THF was k12>k11>k21; the last of these was 0.27M−1 sec−1, with n-BuLi at 0°C.Keywords
This publication has 7 references indexed in Scilit:
- Anionic Copolymerization of Isoprene and 1,1-DiphenylethyleneBulletin of the Chemical Society of Japan, 1969
- Anionic Copolymerization of 2,3-Dimethylbutadiene and 1,1-Diphenyl-ethylene with n-Butyllithium in BenzeneBulletin of the Chemical Society of Japan, 1969
- Anionic Copolymerization of Styrene and 1, 1-DiphenylethyleneBulletin of the Chemical Society of Japan, 1967
- Anionic polymerization and electrolytic dissociation of sodium polystyrene in tetrahydrofuran (thf)Journal of Polymer Science Part B: Polymer Letters, 1965
- Reactivities and Conductivities of Ions and Ion Pairs in Polymerization ProcessesThe Journal of Physical Chemistry, 1965
- Copolymerization of butadiene, isoprene, and 2,3‐dimethyl butadiene with living polystyrene. Electron‐donating effect of methyl groupJournal of Polymer Science Part B: Polymer Letters, 1964
- Hammett's Relations in Anionic CopolymerizationsJournal of the American Chemical Society, 1963