申请人:Technische Universitaet Wien
公开号:US11518823B2
公开(公告)日:2022-12-06
Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition:
R
1
represents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ═O, —NH—CO— OR
2
, —NH—CO—R
2
or free-radically or ionically polymerizable groups. Each R
2
is independently —H or C
1-6
alkyl; n is ≥1. If n=1, Z and Y are absent and X represents —OR
3
; if n is >1, Z represents —OR
4
—, Y represents —ORs— and X represents —H or —OH. R
3
represents —H or R
1
; and R
4
and R
5
each independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of R
1
are polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of R
1
to R
5
may be linked to one another to form a ring or a dimer.
式 (I) 化合物是可光聚合组合物中的光引发剂或光敏剂:
R
1
代表具有 1 至 20 个碳原子的单价、线性、支链或环状脂族烃基,可任选被选自 -Cl、-Br、-OH、═O、-NH-CO- OR 的取代基取代。
2
、-NH-CO-R
2
或可自由或离子聚合的基团。每个 R
2
独立地为-H 或 C
1-6
如果 n=1,则不含 Z 和 Y,X 代表-OR
3
如果 n >1,Z 代表-OR
4
-,Y 代表-ORs-,X 代表-H 或-OH。R
3
代表-H 或 R
1
和 R
4
和 R
5
各自独立地代表一个二价烃基。可聚合基团作为 R
1
是可聚合的双键或三键、内酰胺、内酯和环氧化物分子,可进行开环聚合;R
1
至 R
5
可相互连接形成一个环或二聚体。