申请人:Rensselaer Polytechnic Institute
公开号:US20030176519A1
公开(公告)日:2003-09-18
Compositions that can be photopolymerized by a cationic initiator at an accelerated rate include at least one epoxy monomer, at least one cationic photoinitiator, and a photosensitizer/accelerator. The accelerator is a phenolic resole, or a compound having a structure according to the formula
R
1
(CR
2
R
3
OH)
n,
wherein R
1
is selected from phenyl, polycyclic aryl, and polycyclic heteroaryl, each optionally substituted with one or more electron donating group substituted phenyl;
R
2
and R
3
are independently selected from hydrogen, alkyl, aryl, alkylaryl, substituted alkyl, substituted aryl and substituted alkylaryl; and
n is an integer from 1 to 10.
可以通过阳离子引发剂加速光聚合的组分包括至少一种环氧单体、至少一种阳离子光引发剂和一种光敏剂/加速剂。加速剂是酚醛树脂或具有以下结构的化合物R1(CR2R3OH)n,其中R1选自苯基,多环芳基和多环杂芳基,每个选项都可以用一个或多个电子给体取代的苯基替换;R2和R3独立地选自氢,烷基,芳基,烷基芳基,取代烷基,取代芳基和取代烷基芳基;n为1到10的整数。