15517-46-1Relevant articles and documents
1,4-di(4-hydroxylbenzoyl)benzene monomer preparation method
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Paragraph 0019; 0020, (2017/10/10)
The invention relates to a high polymer material preparation method, in particular to a 1,4-di(4-hydroxylbenzoyl)benzene monomer preparation method. The method includes: selecting nitrobenzene as a solvent, aluminum trichloride as a catalyst and paraphtha
1. 4 - b (4 - hydroxybenzene acyl) rectifying section polyetherketoneetherketoneketone copolymer preparation method
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Paragraph 0024-0025, (2017/08/25)
The invention relates to a 1,4-dis(4-hydroxyl pyrazolyl)benzene and a preparation method of a polyetheretherketone copolymer, which belongs to the high-molecular material field. The method comprises the following steps: selecting nitrobenzene and tetrachloroethanes as solvents, taking aluminium trichloride as a catalyst for a Fries rearrangement reaction to obtain a 1,4-dis(4-hydroxyl pyrazolyl)benzene monomer, then adding 4,4'-difluorobenzophenone and sulfobenzide in a reaction container equipped with a thermometer, protecting under nitrogen, heating to 160-180 DEG C and adding carbonate, heating to 165-190 DEG C and adding a bisphenol monomer, wherein the bisphenol monomer is a mixture of hydroquinone and 1,4-dis(4-hydroxyl pyrazolyl)benzene, performing a program temperature control reaction to obtain a polymer, and processing to obtain the refined polyetheretherketone random polymer.