Kim, J
Kwak, S
Kim, KU
Kim, KH
Cho, JC
Jo, WH
Lim, D
Kim, D
2024-01-21T16:39:08Z
2024-01-21T16:39:08Z
2021-09-03
1998-10
1022-1352
https://pubs.kist.re.kr/handle/201004/142844
1,1-Bis[(4-dimethylamino)phenyl]ethylene was successfully synthesized through the 'Wittig type' reaction of 4,4'-bis(dimethylamino)benzophenone with the 'Tebbe' reagent. The methylenation yields were over 80 wt.-% on the basis of the initial amount of benzophenone derivative used. Terminally functionalized polymers having aromatic tertiary amine groups at one end or at both ends were prepared by the crossover reactions of n-butyllithium (n-BuLi), poly(styryl)lithium (PSLi), and poly(isoprenyl)lithium (PILI) with the diphenylethylene analogue. The functionalization yields were over 87 mol.-% based on the results of H-1 NMR spectroscopic analysis. The number-average molecular weights of the polymers based on the ratio [gram of monomer]/[mole of initiator] are in good accordance with those observed from size exclusion chromatographic and H-1 NMR spectroscopic analysis (3,0 x 10(3) similar to 7,5 x 10(3) g/mol).
English
WILEY-V C H VERLAG GMBH
LIVING POLYMERIZATION
ANIONIC SYNTHESIS
TITANACYCLOBUTANES
MACROMONOMERS
POLYSTYRENES
MONOMERS
TANTALUM
NIOBIUM
Synthesis of a diphenylethylene derivative carrying aromatic tertiary amine groups and its use in chain end functionalization of alkyllithium-initiated polymerizations
Article
10.1002/(SICI)1521-3935(19981001)199:10<2185::AID-MACP2185>3.3.CO;2-V
1
MACROMOLECULAR CHEMISTRY AND PHYSICS, v.199, no.10, pp.2185 - 2191
MACROMOLECULAR CHEMISTRY AND PHYSICS
199
10
2185
2191
scie
scopus
000076394900015
2-s2.0-0000608195
Polymer Science
Polymer Science
Article
LIVING POLYMERIZATION
ANIONIC SYNTHESIS
TITANACYCLOBUTANES
MACROMONOMERS
POLYSTYRENES
MONOMERS
TANTALUM
NIOBIUM
aromatic amine
alkyllithium-initiated polymerization
Diphenylethylene derivative
functionalization