CHIRAL COMPOUNDS AND LIQUID CRYSTAL COMPOSITIONS AND POLYMER NETWORKS DERIVED THEREFROM
申请人:GOLDFINGER Marc B.
公开号:US20110163267A1
公开(公告)日:2011-07-07
The invention relates to compounds of formula (I):
wherein R
1
and R
2
are each independently selected from the group: H, F, Cl and CH
3
; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is ≧1; D is a divalent chiral radical selected from the group:
wherein R
3
is a C1 to C6 straight or branched chain alkyl group; and each B
1
and B
2
is a divalent radical independently selected from the group: R
4
-substituted-1,4-phenyl, wherein R
4
is H, —CH
3
or —OCH
3
; 2,6-naphthyl; and 4,4′-biphenyl; with the provisos that when q+r=3, at least one of B
1
and B
2
is R
4
-substituted-1,4-phenyl; and when q+r=4, at least two of B
1
and B
2
are R
4
-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.
本发明涉及式(I)的化合物:其中R1和R2各自独立地选自以下组:H,F,Cl和CH3; n1和n2各自独立地为3至20的整数; q和r各自独立地为0、1或2的整数,但需满足q+r≧1; D是选自以下组的二价手性基团:其中R3是C1至C6的直链或支链烷基; 每个B1和B2是独立地选自以下组的二价基团:R4-取代-1,4-苯基,其中R4是H,—CH3或—OCH3; 2,6-萘基; 和4,4'-联苯基; 但需满足当q+r=3时,至少有一个B1和B2是R4-取代-1,4-苯基; 当q+r=4时,至少有两个B1和B2是R4-取代-1,4-苯基。本发明还涉及包含式(I)的液晶组分和由液晶组分的聚合物网络衍生的聚合物网络。