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Sigma-Aldrich

Pyromellithsäuredianhydrid

97%

Synonym(e):

Benzol-1,2,4,5-tetracarbonsäure-dianhydrid, PMDA

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About This Item

Empirische Formel (Hill-System):
C10H2O6
CAS-Nummer:
89-32-7
Molekulargewicht:
218.12
Beilstein:
213583
EG-Nummer:
201-898-9
MDL-Nummer:
MFCD00005005
UNSPSC-Code:
12162002
PubChem Substanz-ID:
24865800
NACRES:
NA.23

Qualitätsniveau

200

Assay

97%

Form

powder

bp

397-400 °C (lit.)

mp (Schmelzpunkt)

283-286 °C (lit.)

SMILES String

O=C1OC(=O)c2cc3C(=O)OC(=O)c3cc12

InChI

1S/C10H2O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H

InChIKey

ANSXAPJVJOKRDJ-UHFFFAOYSA-N

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Allgemeine Beschreibung

Pyromellitic dianhydride is a dianhydride class of monomers commonly used in the preparation of polyimides polymers which are used in aerospace, electronics, and automotive industries because of their excellent thermal stability, high mechanical strength, and inherent flame resistance. It is also used in the synthesis of thermoplastic polymers such as polyesters and polyethers, as well as plasticizers and epoxy resins. Additionally, PMDA serves as a curing agent for epoxy resins. Epoxy resins are widely used in adhesives, coatings, composites, and electrical insulation materials.

Pyromellitic dianhydride (PMDA) is an acidic anhydride that can be used as a repair agent and as a chain extender in the formation of polyethylene terephthalate (PET) based chain extensions. It is mainly used in the production of thermoplastics and other coating applications.

Anwendung

PMDA can be used as:
  • A monomer to synthesize aromatic polyimides with excellent thermo-mechanical and chemical properties. These polymers find the applications in automotive and electronic industries.
  • A capping agent in the development of siloxane-based hybrid materials for potential usage in organic electronics.
  • A monomer in the preparation and modification of thin film composite membranes, which are used in water purification, gas separation, and biomedical devices.
  • A monomer in the synthesis of pyromellitic diimide-based copolymers as stable cathode active materials for lithium and sodium-ion batteries.

Piktogramme

Health hazardCorrosion
GHS08,GHS05

Signalwort

Danger

Gefahreneinstufungen

Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

716.0 °F - closed cup

Flammpunkt (°C)

380 °C - closed cup

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Yiwu Liu et al.
Polymers, 12(9) (2020-09-12)
A high-barrier polyimide (2,7-CPI) was synthesized through the polymerization of pyromellitic dianhydride (PMDA) and a novel diamine (2,7-CDA) containing carbazole moiety. The synthesized diamine and polyimide were fully characterized by elemental analyses, FTIR and NMR. The 2,7-CPI displays very attractive
Jun-Xia Yu et al.
Bioresource technology, 110, 160-166 (2012-02-22)
Magnetic pyromellitic dianhydride (PMDA) modified sugarcane bagasse (SCB) was prepared by a situ co-precipitation method. Results showed that the magnetic modified SCB could be recycled easily by an applied magnetic field. Adsorption capacities of the magnetic sorbent for cationic dyes:
Anastasia Anceschi et al.
Molecules (Basel, Switzerland), 25(13) (2020-07-08)
Carbon-based materials with different morphologies have special properties suitable for application in adsorption, catalysis, energy storage, and so on. Carbon spheres and carbon monoliths are also nanostructured materials showing promising results. However, the preparation of these materials often require the
Improved solubilization of pyromellitic dianhydride and 4, 4′ -oxydianiline in ionic liquid by the addition of zwitterion and their polycondensation
Tamada M, et al.
Tetrahedron Letters, 48(9), 1553-1557 (2007)
Wei Hu et al.
Technometrics : a journal of statistics for the physical, chemical, and engineering sciences, 62(2), 196-205 (2020-06-12)
We propose a novel linear discriminant analysis (LDA) approach for the classification of high-dimensional matrix-valued data that commonly arises from imaging studies. Motivated by the equivalence of the conventional LDA and the ordinary least squares, we consider an efficient nuclear
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