申请人:Lub Johan
公开号:US20060022167A1
公开(公告)日:2006-02-02
The invention pertains to a phenylethanediol derivative having at least one polymerizable group, characterized in that the phenylethanediol derivative further comprises at least one photo-convertible group for adjusting the helical twisting power of the phenylethanediol derivative. According to a preferred embodiment the phenylethanediol has the formula
wherein A stands for a bond or a p-phenylene group;
B and B′ are independently (O)
p
—C
o
H
2o
—O—CO—CR′═CH
2
, o being 2-12, p being 0 or 1, and R′ being H or CH
3
;
P stands for a CH
2
or a C═O group; Q and Q′ are independently selected from H, C1-C3 alkyl, C1-C3 alkoxy, halogen, and CN; n is an integer from 1 to 3; and
m is an integer from 0 to 2; and:
wherein A stands for a bond or a p-phenylene group;
B is (O)
p
—C
o
H
2o
—O—CO—CR′═CH
2
, o being 2-12, p is 1, and R′ being H or CH
3
;
P stands for a CH
2
or a C═O group; Q is selected from H, C1-C3 alkyl, C1-C3 alkoxy, halogen, and CN; and m is an integer from 0 to 2.
本发明涉及一种具有至少一个可聚合基团的苯乙二醇衍生物,其特征在于该苯乙二醇衍生物还包括至少一个光转换基团,用于调节苯乙二醇衍生物的螺旋扭曲功率。根据优选实施例,苯乙二醇具有以下式子:其中A代表键或p-苯撑基;B和B'独立地为(O)p—CoH2o—O—CO—CR'═CH2,其中o为2-12,p为0或1,R'为H或CH3;P代表CH2或C═O基团;Q和Q'独立地选自H、C1-C3烷基、C1-C3烷氧基、卤素和CN;n为1-3的整数;m为0-2的整数;以及:其中A代表键或p-苯撑基;B为(O)p—CoH2o—O—CO—CR'═CH2,其中o为2-12,p为1,R'为H或CH3;P代表CH2或C═O基团;Q选自H、C1-C3烷基、C1-C3烷氧基、卤素和CN;m为0-2的整数。