Product Description:
Methyl-5-norbornene-2,3-dicarboxylic anhydride, also commonly known as Nadic Anhydride Methyl or MNA, is a cyclic dicarboxylic anhydride. It is a versatile chemical intermediate primarily used as a hardener or curing agent for epoxy resins, leading to cured products with high thermal stability, excellent mechanical properties, and good chemical resistance. Its unique molecular structure, featuring a bridged bicyclic ring, contributes to the rigidity and high glass transition temperature of the polymers it forms. MNA is typically supplied as a liquid or a low-melting solid, making it easy to handle and incorporate into various formulations.
Product Properties:
Property Value Chemical Name
Methyl-5-norbornene-2,3-dicarboxylic anhydride
Common Names
Nadic Anhydride Methyl, MNA, Methyl Nadic Anhydride, Methylhimic Anhydride
CAS Number
25134-21-8
Molecular Formula
C10H10O3
Molecular Weight
178.18 g/mol
Appearance
Colorless to light yellow liquid or low-melting solid
Boiling Point
Approx. 295-305 °C (decomposes)
Melting Point
Approx. 35-45 °C (mixture of isomers)
Density
Approx. 1.2 – 1.25 g/cm³ at 25 °C
Solubility
Soluble in most organic solvents; reacts with water
Primary Use
Epoxy resin hardener/curing agent
Product Usage:
Epoxy Resin Hardener:
Electrical Components: Used in potting, encapsulation, and impregnation of transformers, capacitors, and other electronic parts due to excellent dielectric properties and thermal stability. For example, encapsulating ignition coils.
High-Performance Composites: Employed in manufacturing advanced composites for aerospace, automotive, and marine applications where high strength-to-weight ratio and thermal resistance are critical. For instance, in structural adhesives or filament-wound pipes.
Coatings and Adhesives: Forms durable and chemically resistant coatings and adhesives for demanding industrial applications.
Chemical Intermediate:
Polyester and Alkyd Resins: Used as a monomer in the synthesis of specialty polyester and alkyd resins to impart specific properties like increased hardness and thermal stability.
Plasticizers and Lubricants: Can be a precursor in the manufacture of certain plasticizers and synthetic lubricants.
Other Applications:
Unsaturated Polyester Resins (UPR): Incorporated to enhance thermal and mechanical properties.
Polyimides and Polyamide-imides: Used in the synthesis of high-temperature resistant polymers.
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