Product introduction
Pyromellitic Dianhydride (PMDA) (benzene-1,2,4,5-tetracarboxylic dianhydride; CAS 89-32-7) is a highly functional aromatic dianhydride supplied commercially as a white to off-white crystalline powder. PMDA is a principal tetracarboxylic dianhydride for the manufacture of high-performance polyimides and is widely used as a monomeric building block and crosslinker in high-temperature resins, adhesives and electronic materials. Request lot-specific Certificate of Analysis (CoA) and Safety Data Sheet (SDS) before qualification.
Applications & Descriptions
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Polyimide Monomer (High-Temperature Polymers)
Used as a tetracarboxylic dianhydride monomer in polycondensation with aromatic diamines to produce high-performance polyimides (films, fibers, coatings) characterized by exceptional thermal stability and mechanical properties. -
Epoxy / Thermoset Crosslinker
Employed as a reactive anhydride curing agent or co-anhydride to increase crosslink density and thermal performance of epoxy and other thermoset systems for electronic encapsulants and adhesives. -
Adhesives For High-Temperature Service
Used in specialty adhesive formulations (structural adhesives, composite bonding) where elevated glass-transition temperature and long-term thermal stability are required. -
Electronic And Dielectric Materials
Incorporated into polyimide formulations and precursor resins for flexible printed circuits, insulating films, and high-temperature electronic substrates. -
Composite Matrix And Prepreg Chemistry
Used in prepreg and composite resin systems to improve thermal and oxidative resistance of aerospace and industrial composite assemblies. -
Specialty Chemical Intermediate
Utilized in laboratory and pilot chemistry as a building block for tailored anhydride chemistries, crosslinkers and networked thermosets.
