25721-74-8

Basic information

• Product Name: POLYMALEIMIDE
• Synonyms: POLYMALEIMIDE;polymaleimide mol. wt. 10,000-20,000;maleimide homopolymer
• CAS NO: 25721-74-8
• Molecular Weight: 0
• EINECS: 208-787-4
• Product Categories: Amides and ImidesOrganic Building Blocks;Carbonyl Compounds;Cyclic Imides;Hydrophobic Polymers;Polymer Science;Amides and Imides;Building Blocks;Carbonyl Compounds;Chemical Synthesis;Cyclic Imides;Hydrophobic Polymers;Materials Science;Organic Building Blocks;Polymer Science;Polymers
• Mol File: 25721-74-8.mol
• Article Data: 51

Chemical Properties

• Boiling Point: 244.1°C at 760 mmHg
• Flash Point: 136.6°C
• Appearance: /
• Density: 1.366g/cm³
• Vapor Pressure: 0.031mmHg at 25°C
• Refractive Index: 1.521
• Storage Temp.: −20°C
• CAS DataBase Reference: POLYMALEIMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: POLYMALEIMIDE(25721-74-8)
• EPA Substance Registry System: POLYMALEIMIDE(25721-74-8)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 25721-74-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C4H3NO2/c6-3-1-2-4(7)5-3/h1-2H,(H,5,6,7)

Upstream product

• 123-56-8 Succinimide 
• 3345-50-4 N-carbamoylmaleimide 
• 928-01-8 maleamide 
• 5435-44-9 (E)-3-Ureido-but-2-enoic acid ethyl ester 
• 62898-86-6 N-phenylcarbamylmaleimide 
• 4475-42-7 5,10,15,20,22,24-hexahydro-5,5,10,10,15,15,20,20-octamethyl-21H,23H-porphine 
• 1066-30-4 chromium(lll) acetate 
• 67-56-1 methanol 
• 22112-79-4 meso-5,10,15,20-tetra(3-hydroxyphenyl)porphine 
• 122341-38-2 temoporfin 
• 6066-82-6 1-hydroxy-pyrrolidine-2,5-dione 
• 55750-48-6 N-methoxycarbonylmaleimide 
• 60-29-7 diethyl ether 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 5677-70-3 (+/-)-(3ar,6ac)-3a,6a-dihydro-3H-pyrrolo[3,4-c]pyrazole-4,6-dione 
• 6253-28-7 exo-7-oxabicyclo[2.2.1]hept-4-ene-2,3-dicarboximide 
• 19878-26-3 (3aR,4R,7S,7aS)-3a,4,7,7a-tetrahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione 
• 5615-81-6 3-(phenylamino)pyrrolidine-2,5-dione 
• 71320-44-0 4,6-dimethyl-7-(N-methyl-anilino)-3a,4,7,7a-tetrahydro-4,7-epioxido-pyrrolo[3,4-c]pyridine-1,3-dione 
• 71320-45-1 6-ethyl-4-methyl-7-(N-methyl-anilino)-3a,4,7,7a-tetrahydro-4,7-epioxido-pyrrolo[3,4-c]pyridine-1,3-dione 
• 71320-46-2 7-diphenylamino-4,6-dimethyl-3a,4,7,7a-tetrahydro-4,7-epioxido-pyrrolo[3,4-c]pyridine-1,3-dione 
• 71320-47-3 7-diphenylamino-6-ethyl-4-methyl-3a,4,7,7a-tetrahydro-4,7-epioxido-pyrrolo[3,4-c]pyridine-1,3-dione 
• 55240-61-4 6-phenyl-(3at,7at)-3a,4,7,7a-tetrahydro-4r,7c-epioxido-pyrrolo[3,4-c]pyridine-1,3-dione 
• 92551-52-5 N-[5c-(4-chloro-phenyl)-4r-methyl-oxazolidin-3-ylmethyl]-maleimide 
• 94621-50-8 N-[5c-(4-methoxy-phenyl)-4r-methyl-oxazolidin-3-ylmethyl]-maleimide 
• 92700-44-2 N-(5-cyclohexyl-4-methyl-oxazolidin-3-ylmethyl)-maleimide 
• 36547-65-6 4,10-diphenyl-(3ac,10ac)-3a,4,10,10a-tetrahydro-4r,10c-epioxido-benzo[4,5]cyclohepta[1,2-c]pyrrole-1,3,9-trione 
• 36206-64-1 3'-phenyl-6'aH-spiro[cyclohexane-1,1'-furo[3,4-c]pyrrole]-4,6-dione 

Relevant articles and documents

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METHOD OF PRODUCING MALEIMIDE

PROBLEM TO BE SOLVED: To provide a method of producing an aliphatic maleimide using substantially no solvent capable of avoiding various problems caused by solvent vapor, and securing good environmental compatibility where the A-MI obtained by the method is useful as a laminate material, an encapsulating material, an electrically insulating material, a conductive paste, an adhesive, a tackiness agent, a structural material and the like. SOLUTION: The method of producing an aliphatic maleimide comprises reacting an aliphatic amine with more than 1.2 equivalent of maleic anhydride and/or maleic acid to 1 equivalent of the aliphatic amine using no solvent substantially. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT

Synthesis method of maleimide

The invention relates to the technical field of maleimide synthesis, in particular to a synthesis method of maleimide. According to the method, maleic anhydride serves as an initial raw material, andN-carbamoylmaleimide is obtained through an aminolysis reaction of urea and a dehydration reaction of acetic anhydride; in the presence of triethylamine, N-carbamoylmaleimide is heated and decomposedinto maleimide. The whole process is simple in operation, the product quality is high, and industrial production is easy.