Title of article :
Investigation of ethylene oxide oligomerization during functionalization of poly(butadienyl)lithium using MALDI-TOF MS and 1H NMR analyses
Author/Authors :
Quirk، نويسنده , , Roderic P. and Guo، نويسنده , , Ya and Wesdemiotis، نويسنده , , Chrys and Arnould، نويسنده , , Mark A.، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2004
Abstract :
Oligomerization of ethylene oxide during the functionalization of poly(butadienyl)lithium in benzene and cyclohexane at 25 °C has been investigated by MALDI-TOF MS and 1H NMR. Chemically significant amounts of oligomer were found using 4 equiv. of ethylene oxide ([EO]/[PLi]) after 12 h in both benzene and cyclohexane. No oligomer was observed when the reaction time was minimized.
Keywords :
anionic polymerization , oligomerization , Hydroxyl functionalization
