Acetylene polymers and their use as liquid crystals
AssigneeThe Hong Kong University of Science and Technology
InventorsBen Zhong Tang, Wing Yip Lam, Xiangxing Kong, Hoi Sing Kwok
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Abstract
There is disclosed a liquid crystalline polyacetylene having a repeat structure of the formula where spa is a spacer group and mes is a mesogenic substituent.
Claims19
A polymer formed from at least a compound of the following formula
- wherein n is greater than 1. and
- wherein A is selected from the group consisting of COO, OCO and O;
- B is selected from the group consisting of COO, OCO and O;
- and C is O(CH2)6CH3.
Poly{[4-({[6-({[4′-(heptyl)oxy-4-biphenylyl]carbonyl}oxy)hexyl]oxy}carbonyl)phenyl]acetylene}.
[4-({[6-({[4′-(heptyl)oxy-4- -biphenylyl]carbonyl}oxy)hexyl]oxy}carbonyl)phenyl]acetylene.
A substituted acetylene having the formula HC≡C-spal-mes, where spal is a spacer group comprising an alkyl chain, and mes is a mesogenic substituent selected from the group consisting of:
- wherein A, B and D are polar moieties, spa2 is a spacer group comprising an alkyl chain, and R is H or an alkyl group.
5-{[(4′-{[(undecyl)carbonyl]oxy}-biphenyl-4-yl)carbonyl]joxy}-1-pentyne.
6-{[(4′-{[(undecyl)carbonyl]oxy}-biphenyl-4-yl)carbonyl]oxy}-1-hexyne.
5-[(4′-{[(undecyl)carbonyl]oxy}-biphenyl-4-yl)oxy]-1 -pentyne.
4-{[({[(4′-[(nonyl)oxy]-biphenyl-4-yl)carbonyl]oxy}hexyl)oxy]carbonyl}-1-butyne.
10-{[({[(4′-[(nonyl)oxy]-biphenyl-4-yl)carbonyl]oxy}hexyl)oxy]carbonyl}-1-decyne.
5-[({[(4′-[(hexyl)oxy]-biphenyl-4-yl)oxy]hexyl}oxy)carbonyl]-1-pentyne.
10-[({[(4′-[(hexyl)oxy]-biphenyl-4-yl)oxy]hexyl}oxy)carbonyl]- 1-decyne.
5-( {[(4-{[hexyl)oxy]phenyl}oxy)carbonyl]phenyl }oxy)- 1-pentyne.
A compound having the following formula
- wherein n is greater than 1, and
- wherein A is selected from the group consisting of COO, OCO and O;
- B is selected from the group consisting of COO, OCO and O;
- and C is O(CH2)6CH3.
Dependencies are inferred from the claim text.