摘要:
The invention relates to novel triphenylene compounds containing at least three ethylenically unsaturated groupings, oxiranyl or thiiranyl group-bearing groupings bonded to the triphenylene backbone, and a process for producing discoidally liquid crystalline cross-linked polymers. These cross-linked polymers are suitable as charge transfer materials.
摘要:
A liquid crystal polymer or copolymer is disclosed of general structure (A) wherein X = CN, COR, CO2R, CHO, CF3; R = branched chain, straight chain or chiral alkyl; (a) = any suitable mesogenic group; Z = single covalent bond, oxygen, sulphur, CO2 or OCO; n = 1 to 20; Y = H, OH, F, OCH3; m = 3 to 200; P = a single covalent bond, oxygen, or OCO.
摘要翻译:公开了通式(A)的液晶聚合物或共聚物,其中X = CN,COR,CO 2 R,CHO,CF 3; R =支链,直链或手性烷基; (a)=任何合适的介晶组; Z =单共价键,氧,硫,CO2或OCO; n = 1〜20; Y = H,OH,F,OCH 3; m = 3〜200; P =单一共价键,氧或OCO。
摘要:
Side-chain polymers containing monomer units of formula (I), wherein P denotes a polymer main chain unit, Sp denotes an alkyl group with 1 to 20 C atoms, wherein one or more non-neighbouring CH2 groups can also be replaced by -O-, -S- and/or -NR2-, and B denotes an organic rod-like residue with at least two six-membered groups, are characterized in that B contains at least two 1,4-cyclohexylene residues, wherein one or two non-neighbouring CH2 groups can be replaced by 0 atoms.
摘要:
Nitrogenous compounds with six-membered rings having the formula (I) and polymer materials containing the organic residue of a compound having the formula (I) covalently linked therewith are suitable as non-linear optical media. In the formula (I), D, W, X, Y and Z have the meaning given in the first claim.
摘要:
A composite includes from about 10 wt% to about 40 wt% of a polymer; a chiral dopant having a helical twisting power of at least about 100 µm-1; and a liquid crystal compound having a dielectric anisotropy of at least about +40. The composite exhibits a blue phase III.
摘要:
Thermostatic heating or cooling materials and method for making and using the materials are disclosed. The thermostatic materials may be usable as packaging material and may include a mixture of at least two materials which exhibit a liquid crystalline (LC) phase, or mesophase. Mixtures of two or more compatible LC components may provide a tunability for both operating temperature (temperature control) and latent heat of transition (cooling capacity).
摘要:
The invention relates to a method of preparing a polymer film and to the use of such polymer film as in liquid crystal displays (LCDs) or other optical or electro optical devices, for decorative or security applications, as alignment layer or optical retardation film.