364-06-7Relevant academic research and scientific papers
Soluble polyimides with trifluoromethyl pendent groups
Kim, Sun Dal,Lee, Sanghwa,Heo, Jaewon,Kim, Sang Youl,Chung, Im Sik
, p. 5648 - 5654 (2013)
Unsymmetrical and symmetrical diamine monomers containing trifluoromethyl groups, 2-trifluoromethyl-4,4′-diaminodiphenyl sulfide and 2,2′-bis(trifluoromethyl)-4,4′-diamino-diphenyl sulfide, were synthesized from 2-chloro-5-nitrobenzotrifluoride as a start
Diamine compound containing sulfoxide-based bridge chain as well as synthesis method and application of diamine compound containing sulfoxide-based bridge chain
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Paragraph 0053-0054, (2020/10/21)
The invention provides a diamine compound containing a sulfoxide-based bridge chain as well as a synthesis method and application of the diamine compound containing the sulfoxide-based bridge chain. Sulfoxide diamine synthesized by the method contains a sulfoxide-based bridge chain structure. The synthesis method has the characteristics of simple synthetic route, mild reaction conditions, highly available reaction raw material source, low cost, few organic solvent use types, capability of reducing environmental pollution to the greatest extent and the like. The diamine compound provided by theinvention has a sulfoxide group in structure; and in the synthesis of a polymer material, the diamine compound can improve the light transmittance of the material, increase the heat resistance and reduce the dielectric constant and water absorption of the material, and therefore, the diamine compound is suitable for synthesizing flexible transparent polyimide or polyamide and other films.
DIAMINE COMPOUND, AND POLYIMIDE PRECURSOR AND POLYIMIDE FILM PREPARED BY USING THE SAME
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Paragraph 0323-0326, (2020/11/03)
The present invention disclosed a novel diamine compound including a structure in which a phenylene linker (L) connecting an intramolecular imide ring and the imide ring is bonded to a phenyl ring substituted with -NH-(C=O)- or -O-(C=O)-. A polyimide film prepared by polymerizing the novel diamine compound has not only improved mechanical and thermal properties, but also an excellent refractive index.COPYRIGHT KIPO 2021
Fluorodenitration of activated diphenyl sulphones using tetramethylammonium fluoride
Clark, James H.,Wails, David
, p. 201 - 206 (2007/10/02)
Fluorodenitration of nitro-substituted diphenyl sulphones occurs readily in dipolar aprotic solvents using tetramethylammonium fluoride as the source of fluoride, although other reactions including fluorodesulphonylation can sometimes occur in competition. - Keywords: Fluorodenitration; Diphenyl sulphones; Tetramethylammonium fluoride; NMR spectroscopy; Mass spectrometry
