申请人:E. I. Du Pont de Nemours and Company
公开号:US04085106A1
公开(公告)日:1978-04-18
Polycyclic trisaminomethanes of the formula ##STR1## in which R.sup.1 and R.sup.2, alike or different, are alkylene; R.sup.3 and R.sup.4, alike or different, are alkyl, cycloalkyl, or aralkyl; or R.sup.3 and R.sup.4 are joined together to form an alkylene group which may be interrupted by (1) ##STR2## WHERE Q is hydrogen or alkyl, or (2) ONE OR TWO --O-- linkages; and There are at least 2 carbons between each two hetero atoms in the outer ring system, are useful as initiators for the polymerization of pivalolactone. These polycyclic trisaminomethanes are prepared by reacting a polyamine of the formula R.sup.3 NHR.sup.1 NHR.sup.2 NHR.sup.4 with a dialkoxy(dialkylamino)methane of the formula (RO).sub.2 CHNR'.sub.2 in which R and R', alike or different, are alkyl.
式子为##STR1##的多环三氨基甲烷,其中R1和R2相同或不同,为烷基;R3和R4相同或不同,为烷基、环烷基或芳基烷基;或R3和R4结合在一起形成可由(1)##STR2##其中Q为氢或烷基,或(2)一个或两个—O—连接中断的烷基;并且在外环系统中的每两个杂原子之间至少有2个碳原子,可用作pivalolactone的聚合引发剂。这些多环三氨基甲烷是通过将式为R3NHR1NHR2NHR4的多胺与式为(RO)2CHNR'2的二烷氧基(二烷基氨基)甲烷反应而制备的,其中R和R'相同或不同,为烷基。