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575771

Sigma-Aldrich

Poly(pyromellitic dianhydride-co-4,4′-oxydianiline), amic acid solution

12.0 wt. %±0.5 wt. % (80% NMP/20% xylene)

Synonym(s):

Pyre-M.L.® RK-692, Polyamic acid

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About This Item

Linear Formula:
(C12H12N2O .C10H2O6)x
UNSPSC Code:
12162002
NACRES:
NA.23

form

viscous liquid

Quality Level

300

concentration

12.0 wt. %±0.5 wt. % (80% NMP/20% xylene)

refractive index

n20/D 1.5052

solubility

H2O: miscible

density

1.03 g/mL at 25 °C (relative)

storage temp.

−20°C

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General description

Poly(pyromellitic dianhydride-co-4,4′-oxydianiline), amic acid solution (PAA) converts to polyimide at 300oC. The FTIR spectra indicates a carbonyl stretch of carboxylic acids in PAA at 1650 cm-1. Following the imidization process, the peak at 1720cm-1 grows, indicating the formation of imide group.

Application

It is used as a precursor for polyimide coatings.
It may also be used as a precursor for the preparation of carbon hollow fiber membranes.

Legal Information

Pyre-M.L. is a registered trademark of Industrial Summit Technologies Corp.

Signal Word

Danger

Hazard Classifications

Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3

Target Organs

Central nervous system,Liver,Kidney, Respiratory system

WGK

WGK 2

Flash Point(F)

84.2 °F

Flash Point(C)

29 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ultrathin polymer membranes for high throughput CO2 capture
Spadaccini CM
Energy Procedia, 4, 731-736 (2011)
Bendable integrated circuits on plastic substrates by use of printed ribbons of single crystalline silicon
Ahn JH
Applied Physics Letters, 90 (2007)
CO2/CH4 mixed gas separation using carbon hollow fiber membranes
Yoshimune M and Haraya K
Energy Procedia, 37, 1109-1116 (2013)
Junping Ju et al.
Journal of colloid and interface science, 404, 36-41 (2013-06-01)
The triblock copolymers with the majority phase comprising fluorinated polyimide and the minor phase consisting of poly (ε-caprolactone) (PCL) were synthesized through Diels-Alder reaction between PI-Maleimide and PCL-Furfuryl Amine. The chemical composition and structure of the copolymers were characterized by

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