Temperature gradient interaction chromatography and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis of air terminated polystyryllithium.
The reaction products of polystyryllithium with air were characterized by size-exclusion chromatography, temperature gradient interaction chromatography and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Polystyryllithium was prepared by anionic polymerization of styrene initiated with sec-butyllithium in cyclohexane under an Ar atmosphere. It was confirmed that polystyryl ketone, polystyryl alcohol, and directly coupled polystyrene were the major products in addition to the normally terminated polystyrene, which is consistent with the results in the literature. We could also identify the presence of methoxy and carboxylic acid end capped polystyrenes as well as dipolystyryl ether as minor products. Among the minor products, dipolystyryl ether has not been reported yet.
Department of Chemistry, Center for Integrated Molecular Systems, Pohang University of Science and Technology, South Korea.
Soojin
S
Park
Donghyun
D
Cho
Jinsook
J
Ryu
Kyoon
K
Kwon
Taihyun
T
Chang
Jaiwook
J
Park
D000388:Air; D002845:Chromatography / Q000379:methods*; D011137:Polystyrenes / Q000032:analysis*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D013696:Temperature
D011137:Polystyrenes; C469723:polystyryllithium