33228-48-7

Upstream product

• 108-95-2 phenol 
• 33228-44-3 4-pentylaniline 
• 538-68-1 pentylbenzene 
• 1009-14-9 phenyl butyl ketone 
• 71-43-2 benzene 
• 638-29-9 n-valeryl chloride 

Downstream Products

• 1306630-36-3 bis(4-(4-pentylphenyl)azophenyl) 2-nitroisophthalate 

Relevant academic research and scientific papers

Multi-responsible chameleon molecule with chiral naphthyl and azobenzene moieties

A photochromic chiral molecule with azobenzene mesogens and a (R)-configuration naphthyl moiety (abbreviated as NCA2M) was specifically designed and synthesized for the demonstration of chameleon-like color changes responding to multitudinous external stimuli, such as temperature, light and electric field. The basic phase transition behaviors of NCA2M were first studied by the combination of differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Based on the structure-sensitive X-ray diffraction results obtained at different temperatures, it was comprehended that the NCA2M molecule exhibited the tilted version of highly ordered smectic crystal phase with 5.45 nm layer thickness. Chiral nematic (N) liquid crystals (LC) with helical superstructures were formed by doping the NCA2M photochromic chiral molecule in an achiral nematic (N) LC medium. By controlling the helical pitch length of N-LC with respect to temperature, light and electric field, the wavelength of selectively reflected light from the N photonic crystal was finely tuned. The light-induced color change of N-LC film was the most efficient method for covering the whole visible region from blue to green and to red, which allowed us to fabricate remote-controllable photo-responsive devices.

Photo-crosslinkable liquid-crystalline azo-polymer for surface relief gratings and persistent fixation

Highly efficient migration has been observed for soft liquid-crystalline azobenzene-containing polymer films to form surface relief gratings (SRGs). The efficient migration is probably driven by the interfacial instability at boundaries between the smecti

COMPOUND, CURED PRODUCT, POLYMER, PHOTO-ALIGNMENT FILM, OPTICALLY ANISOTROPIC BODY AND LIQUID CRYSTAL DISPLAY ELEMENT

A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.

RESPONSIVE CHIRAL DYE COMPOUND WITH CONTROLLING COLOR BY STIMULATION, METHOD FOR PREPARING THE COMPOUND, AND CHROMIC DEVICE USING THE SAME

The present invention relates to a responsive chiral dye compound with enhanced solubility by having structural complementarity with liquid crystal molecules, and a method for preparing the compound. The responsive chiral dye compound according to the present invention can be dispersed in commercialized nematic liquid crystals by having excellent solubility, and can be used as an additive for producing a dye for liquid crystals and a cholesteric reflective film by not generating cohesion. The responsive chiral dye compound of the present invention can reversibly control the reflective color of a cholesteric film in a condition for applying light, heat, and an electric field, thereby being able to be used for a smart window of a vehicle or a protective camouflage film for army.(AA) Responsive chiral dye compound(S10) Step of preparing a hydrocarbon compound (R_m)(S20) Step of preparing a photoreactive mesogenic compound (PMS)(S30) Step of reacting PMS with R_m(S40) Step of reacting a chiral compound (Ch) and R_m-PMSCOPYRIGHT KIPO 2017

Liquid-crystalline polymorphism of symmetrical azobananas: Bis(4-(4-alkylphenyl)azophenyl) 2-nitroisophtalates

In this paper we present a series of novel compounds, bis(4-(4-alkylphenyl) azophenyl) 2-nitroisophtalates, which exhibit nematic and banana-type liquidcrystalline phases. The alkyl chain length varies from 1 to 18 carbons. The first ten members of this series exhibit nematic phase. The last eleven compounds exhibit banana-type liquid crystalline phases. The propyl and pentyl derivatives have extra second type of banana mesophase. Copyright Taylor & Francis Group, LLC.

Hierarchical organisation in shape-amphiphilic liquid crystals

Shape-amphiphilic liquid crystals offer a route towards complex assemblies at the difficult 10 nanometer length scale. We present the preparation and mesomorphic characterisation of three novel shape amphiphiles based on azobenzenes. Their mesophases rang