Full-bio-based aryl diamine flame retardant and full-bio-based aryl diamine polymide film

• Main Authors: Chenjie Zhu, Bo Zhang, Hanjie Ying, Tao Shen, Yuxiao Hu, Ming Li, Wei Zhuang
• Format: Patent
• Language: English
• Published: 09.10.2024
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

Disclosed in the present invention are a full-bio-based aryl diamine flame retardant and a full-bio-based aryl diamine polyimide thin film. The structures thereof are respectively as shown in formula (I) and formula (II). A preparation method therefor comprises: subjecting a lignin oxidative depolymerization monomer compound and a bio-based ketone compound to an aldol condensation reaction to obtain a coupled bisphenol compound, and reacting the coupled bisphenol compound to a phenolic hydroxyl amination reaction to obtain a bio-based aryl diamine; then subjecting the obtained diamine compound and a 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to an addition reaction to introduce an aromatic ring structure thereto, and subjecting the product thereof and phenyl dichlorophosphate to a solution polycondensation reaction to obtain a full-bio-based aryl diamine flame retardant; and subjecting the obtained diamine compound and a diacid anhydride compound to a condensation reaction to obtain a solution containing a polyamide acid compound. The product of the present invention can be used for replacing a traditional diamine flame retardant to prepare a flame-retardant polyurethane rigid foam and a flame-retardant phenolic foam, and for replacing a traditional diamine to prepare a polyimide thin film.