344311-22-4Relevant academic research and scientific papers
Phosphorus-nitrogen-containing flame-retardant monomer and preparation method thereof
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Paragraph 0024, (2017/01/02)
The invention discloses a phosphorus-nitrogen-containing flame-retardant monomer and a preparation method thereof, and relates to a flame-retardant material. The preparation method comprises: adding p-phenylenediamine into a container containing a solvent, performing magnetic stirring until the p-phenylenediamine is dissolved, and adding carbon tetrachloride and an acid-binding agent; dissolving diethyl phosphite with a solvent, then adding the dissolved diethyl phosphite into the container for reaction, filtering the reaction solution, then separating the acid-binding agent hydrochloride, and performing extraction cleaning, rotary evaporation, purification and drying to obtain a reaction intermediate compound; and dissolving the reaction intermediate compound in a solvent, adding an acid-binding agent, performing water bathing, adding methacryloyl chloride for reaction, performing filtration, then separating the acid-binding agent hydrochloride, and performing extraction cleaning, rotary evaporation, purification and drying to obtain the phosphorus-nitrogen-containing flame-retardant monomer. The reaction can be performed at room temperature, and is easy to control and simple to operate. The phosphorus-nitrogen-containing flame-retardant monomer can be homo-polymerized into a macromolecular flame retardant, can be co-polymerized into a macromolecular flame retardant with other monomers, and can be used as a reactant to perform double-bond addition reaction. The phosphorus-nitrogen-containing flame-retardant monomer can be used for inflaming retarding of polyolefin type or epoxy resin materials.
