supported by the National Natural Science Foundation of China(No20676074 and No21176147)
The urethane reaction of o-hydroxybenzyl alcohol with phenyl isocyanate was monitored with in situ FT-IR.Dibutyltin dilaurate was used as catalyst and its amount effect was investigated.It was found that there was an ...
the financial support from the National Natural Science Foundation of China(No. 20676074)
Several new asymmetric substituted dicarbamates were synthesized with a convenient route.Firstly,tolylene-2,4-diisocyanate dimmer was obtained from monomer with tributylphosphine as catalyst.Then,the dimmer reacted wi...
the financial support from the National Natural Science Foundation of China(No. 20676074);the National Natural Science Foundation of Shandong Province(No.Y2004B04).
Tolylene-2,4-diisocyanate(2,4-TDI) 1 reacts with methanol through two simultaneous paths in the polyurethane reaction,which involve two different intermediates-tolylene-4-carbamatic-2-isocyanate 2 and tolylene-2-car...
support of the Natural Science Foundation of China(No.20676074);the Natural Science Foundation of Shandong Province(Nos.Y2004B04 and Y2006B22).
A series of polydimethylsiloxanes containing two primary hydroxyl groups at one single chain end were synthesized by five-step reactions which included esterification,hydroxyl protection,anionic ring-opening polymeriz...