Liquid crystal polymer with ion groups and preparation method for liquid crystal polymer

Abstract

The invention discloses a liquid crystal polymer with ion groups and a preparation method for the liquid crystal polymer. The liquid crystal polymer with the ion groups is formed by virtue of polycondensation of one or more of diol, diphenol or diamine, monomers with ion groups and acyl chloride. The preparation method for the liquid crystal polymer with the ion groups comprises: adding one or more of diol, diphenol or diamine into DMF, THF, acetonitrile, ethyl acetate or DMSO to obtain a mixed solution I; adding an acid-binding agent into the mixed solution I to obtain a mixed solution II; slowly dropwise adding the acyl chloride which is dissolved into the DMF, the THF, the acetonitrile, the ethyl acetate or the DMSO into the mixed solution II to obtain a mixed solution III; and adding alcohol substances into the mixed solution III, and performing washing and drying to obtain the liquid crystal polymer with the ion groups. The liquid crystal polymer with the ion groups disclosed by the invention is applied to the fields such as car parts, precise electronic instruments, light-guide fibers, medical apparatuses and instruments, waterproof materials, textile field, heat insulation materials, energy storage materials, body armors or parachutes and the like.

Description

technical field [0001] The invention belongs to the chemical field of liquid crystal polymers, in particular to a liquid crystal polymer with ionic groups and a preparation method thereof. Background technique [0002] In order to obtain polymer materials with excellent comprehensive properties, the existing polymer blending modification has become one of the effective ways to develop materials, but the current polymer blending modification has poor compatibility between different polar polymers , phase separation between crystalline and amorphous polymers, etc., and the current polymer additives usually have a single function, improving certain properties while causing deterioration of other properties. [0003] TLCP (thermotropic liquid crystal polymer) is a kind of high-performance liquid crystal polymer material, and its molecular chains are arranged in an orderly manner in the molten state. During processing, under the action of shear force or tensile strain flow, TLCP...

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Problems solved by technology

[0002] In order to obtain polymer materials with excellent comprehensive properties, the existing polymer blending modification has become one of the effective ways to develop materials, but the current polymer blending modification has poor compatibility between different polar polymers , phase separation between crystalline and amorphous polymers, etc., and the current polymer additives usually have a single function, improving certain properties while causing deterioration of other properties

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