1361393-49-8

Upstream product

• 100-83-4 meta-hydroxybenzaldehyde 
• 106-89-8 epichlorohydrin 

Downstream Products

• 1390650-38-0 1,3-Bis(3-((4-pentyloxyphenylimino)methyl)phenoxy)-propan-2-ol 
• 1390650-41-5 1,3-Bis(3-((4-heptyloxyphenylimino)methyl)phenoxy)-propan-2-ol 
• 1361393-47-6 1,3-Bis(3-((4-nonyloxyphenylimino)methyl)phenoxy)-propan-2-ol 

Relevant academic research and scientific papers

LASER ABLATIVE DIELECTRIC MATERIAL

Dielectric materials with optimal mechanical properties for use in laser ablation patterning are proposed. These materials include a polymer selected from the group consisting of polyureas, polyurethane, and polyacylhydrazones. New methods to prepare suitable polyacylhydrazones are also provided. Those methods involve mild conditions and result in a soluble polymer that is stable at room temperature and can be incorporated into formulations that can be coated onto microelectronic substrates. The dielectric materials exhibit high elongation, low CTE, low cure temperature, and leave little to no debris post-ablation.

Liquid crystalline properties of dimers having o-, m- and p- positional molecular structures

With the objective to design and synthesis of Schiff's base symmetrical liquid crystal dimmers and to study the effect of molecular structure variation (o-ortho, m-meta, p-para) and change in alkoxy terminal chain length on mesomorphic properties of liquid crystals, We have synthesized Schiff base dimers from dialdehyde derivative containing 2-hydroxy-1,3-dioxypropylene as short spacer with aniline derivatives having different lengths of terminal alkoxy chains (n = 5, 7, 9). The chemical structure of the final products was characterized by proton nuclear magnetic resonance (1H NMR) spectroscopy and fourier transform infrared (FT-IR) spectroscopy. The mesomorphic properties and optical textures of the resultant dimers were characterized by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). The existence of smectic A phase transition was confirmed by the observation of batonnets and fan shaped textures in optical microscopy when compound were heated from crystalline phase. All of the dimers of this series, with the exception of 2S5 -ortho, -meta, -para, were thermotropic liquid crystal. The compound 2S9 -meta was monotropic, while the rest were enantiotropic. It was found that the change in terminal alkoxy chain length has pronounced effect on the mesomorphic properties. The temperature range of smectic A phase window widens with increasing alkoxy chain length.