Bonded fluorescent rare earth liquid crystal ionomer and preparation method thereof

An ionomer and bonded technology, applied in liquid crystal materials, chemical instruments and methods, luminescent materials, etc., can solve problems such as poor processing performance and thermal stability, high phase transition temperature, narrow liquid crystal interval, etc., and achieve thermal stability Good performance, easy operation, and wide liquid crystal range

Active Publication Date: 2018-12-18
XUZHOU UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, bonded small-molecule rare-earth liquid crystals have shortcomings such as high phase transition temperature, narro

Method used

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  • Bonded fluorescent rare earth liquid crystal ionomer and preparation method thereof
  • Bonded fluorescent rare earth liquid crystal ionomer and preparation method thereof
  • Bonded fluorescent rare earth liquid crystal ionomer and preparation method thereof

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Embodiment Construction

[0055] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0056] The Fourier transform infrared spectrometer (FT-IR) that the present invention uses is the infrared spectrometer that the model of German Bruker company is ALPHA, and differential scanning calorimeter (DSC) adopts the model of U.S. TA company to be DSCW20 differential scanning calorimetry The polarizing microscope (POM) adopts the polarizing microscope of the model DMRX of the German LEICA company, the fluorescence spectrophotometer adopts the model F-2007 fluorescence spectrophotometer of the Japanese HITACHI company, and the thermogravimetric analyzer (TGA) adopts the model of the American company It is a thermogravimetric analyzer of Q20, and all chemical reagents are commercially available.

[0057] A bonded fluorescent rare earth liquid crystal ionomer, the structural formula of the ionomer is:

[0058]

[0059] Wherein a+b+c=7...

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Abstract

The invention discloses a bonded fluorescent rare earth liquid crystal ionomer and a preparation method thereof, and belongs to the technical field of polymer materials. The bonded fluorescent rare earth liquid crystal ionomer is prepared by graft copolymerization of a liquid crystal monomer 4-cholesterol allyloxy benzoate M1, acrylic acid M2, a rare earth complex M3 and polymethylhydrosiloxane PMHS. Compared with liquid crystal polymers, strong fluorescence appears at specific wavelength. Compared with common rare earth complexes, the prepared rare earth liquid crystal ionomer has liquid crystallinity and wide liquid crystal range, and has the liquid crystal range reaching 199 DEG C. In addition, through thermogravimetric analysis, the prepared rare earth liquid crystal ionomer has good heat stability, and can have wide application prospect in optics, machinery, electronics, display and other fields. The preparation method is simple, easy to operate, high in yield and prone to industrialized production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bonded fluorescent rare earth liquid crystal ionomer and a preparation method thereof. Background technique [0002] Rare earth liquid crystal materials have the characteristics of magnetism, high luminous intensity, high color purity, and high electronic polarizability, and can be applied to organic magnets, nonlinear optical materials, catalysts, etc., and are important luminescent liquid crystal materials. Rare earth liquid crystals can be divided into doped and bonded types. Bonded rare earth liquid crystals can overcome defects such as poor compatibility between doped rare earth liquid crystals and matrix materials, and easy phase separation, which has become one of the hot spots in the research of rare earth liquid crystals. However, bonded small molecule rare earth liquid crystals have disadvantages such as high phase transition temperature, narrow ...

Claims

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Application Information

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IPC IPC(8): C09K19/40C09K11/06C08F283/12C08F220/06C08F230/04C08F216/14
CPCC08F283/12C09K11/06C09K19/408C09K2211/182C08F216/1416
Inventor 么冰堵锡华陈艳宦文健董黎明陈希朋于效祥
Owner XUZHOU UNIV OF TECH
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