--Note--

Catalytic Activity of Qunuclidinyl Group-Containing Polymethacrylate on Urethane Formation

Katsuji MATSUNAGA*, Koji OKAMOTO†, Masahiro TAJIMA and Yasuhiko YOSHIDA

Department of Applied Chemistry, Faculty of Engineering, Toyo University; 2100 Kujirai, Kawagoe-shi 350-8585 Japan
† Present address; Hujikura Kasei Co. Ltd.; 5-13-1 Sakurada Washimiya-cho, Saitama 340-0203 Japan

The catalytic activity of poly (3-qunuclidinyl methacrylate) (PQM) and its copolymer (PQM-StX) with styrene was investigated in the reaction of phenyl isocyanate with 1-butanol. Their catalytic activity was compared with those of poly[4-(N,N-dimethylamino) butyl methacrylate] (PDBM) and 1,4-diazabicyclo[2.2.2]octane (DABCO) and proved to be superior to that of PDBM, but inferior to that of DABCO. The catalytic activity of PQM-StX was higher than that of PQM. This would be caused by interaction of styrene component of PQM-StX with phenyl isocyanate.


[Contents (In Japanese) ] [Contents (In English) ]