Compound which performs non-resonant two-photon absorption, non-resonant two-photon light-emitting compound and non-resonant two-photon absorption induction method and process for emitting light thereby, optical data recording medium and process for recording data thereon, and two-photon polymerizable composition and process for polymerization thereof
申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20030162124A1
公开(公告)日:2003-08-28
The present invention provides a two-photon light-emitting compound represented by formula (1), an optical data recording medium capable of recording data with a laser beam comprising a compound represented by formula (1) and a two-photon polymerizable composition photopolymerizable by two-photon absorption comprising a polymerizable monomer or polymerizable oligomer and at least a two-photon absorption material being a compound represented by formula (1):
X
2
—(—CR
4
═CR
3
—)
m
—C(═O)—(—CR
1
═CR
2
—)
n
—X
1
(1)
wherein X
1
and X
2
may be the same or different and each represent a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; R
1
, R
2
, R
3
and R
4
each independently represent a hydrogen atom or substituent; some of R
1
, R
2
, R
3
and R
4
may be connected to each other to form at least one ring; and n and m each independently represent an integer of from 1 to 4, with the proviso that when n and m are 2 or more, the plurality of R
1
's, R
2
's, R
3
's, and R
4
's each may be the same or different. The present invention also provides a photopolymerization process which causes polymerization reaction utilizing two-photon or higher multiple photon absorption induced by irradiating the above polymerizable composition with laser beam having a wavelength longer than the linear absorption band of the compound of the formula (1) and free of linear absorption.
本发明提供了一种由式(1)表示的双光子发光化合物、一种能够用激光束记录数据的光学数据记录介质,该介质由式(1)表示的化合物和一种可通过双光子吸收进行光聚合的双光子可聚合组合物组成,该组合物由可聚合单体或可聚合低聚物和至少一种双光子吸收材料(即式(1)表示的化合物)组成:
X
2
-(-CR
4
═CR
3
-)
m
-C(═O)-(-CR
1
═CR
2
-)
n
-X
1
(1)
其中 X
1
和 X
2
可以相同或不同,各自代表取代或未取代的芳基或取代或未取代的杂环基团; R
1
, R
2
, R
3
和 R
4
各自独立地代表一个氢原子或取代基;R
1
, R
2
, R
3
和 R
4
可相互连接形成至少一个环;n 和 m 各自独立地代表 1 至 4 的整数,但当 n 和 m 为 2 或更多时,多个 R
1
、R
2
、R
3
和 R
4
可以相同,也可以不同。本发明还提供了一种光聚合工艺,利用波长长于式(1)化合物线性吸收带且无线性吸收的激光束照射上述可聚合组合物,诱导双光子或更高的多重光子吸收,从而引起聚合反应。