91598-49-1

Upstream product

• 99-96-7 4-hydroxy-benzoic acid 
• 1711-24-6 4-(2-hydroxyethoxy)benzoic acid 
• 69260-38-4 4-(2-(acryloyloxy)ethoxy)benzoic acid 

Relevant academic research and scientific papers

A biphenyl type acrylate liquid crystal resin synthesis method

The invention discloses biphenyl acrylate liquid crystal resin and a synthetic method thereof. The synthetic method comprises the steps of synthesizing symmetrical and unsaturated liquid crystal resin through an acylation reaction and an esterification reaction by using unsaturated double bonds of acrylic acid; preparing di-ester and biphenyl liquid crystal resin by using the characteristics of 3,3',5,5'-tera-alkyl (or fluoro) biphenol, such as strong rigidity, large intermolecular attraction and conjugation effect of benzene rings. The biphenyl acrylate liquid crystal resin disclosed by the invention has the characteristics of the biphenyl liquid crystal resin, such as no color, generally relatively high clearing point, ultra-high dielectric anisotropy value, good physical and chemical properties, good optical and chemical stability, anisotropy, very wide liquid crystal phase region, adjustable viscosity, birefringence and physical parameters, good molding processing property and the like.

SYNTHESIS AND CHARACTERIZATION OF SOME THERMINALLY CYANO-SUBSTITUTED SIDE-CHAIN LIQUID CRYSTALLINE POLYACRYLATES

The synthesis of a series of liquid crystalline side-chain polyacrylates in which the mesogenic group is 1-(4-benzoyloxyphenyl)-2-(4'-cyanophenyl)ethane is reported.Methylenic spacer groups of different lengths have been used.Polymers were prepared by radical polymerization (AIBN as initiator) of the corresponding acrylates.The liquid crystalline nature of these polymers was established by calorimetric measurements, optical texture observations and X-ray investigations.For the polymer where n=6, the unusual I-N-SAd-Nre sequence was observed.

Electrically conductive liquid crystalline substance and polymer

An electrically conductive liquid crystalline substance represented by the general formula L-S1 -CT or L-CT, wherein L is a residue of a liquid crystalline substance, S1 is an atom or atomic grouping which becomes a spacer and CT is a charge-transfer complex, is disclosed. An electrically conductive liquid crystalline polymer having an electrically conductive liquid crystalline substance portion in its side chain is also provided. These electrically conductive liquid crystalline materials are useful in the conventional applications of liquid crystals and in other applications which utilize their electrical conductivity.