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Merck
CN

575771

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
NACRES:
NA.23
UNSPSC Code:
12162002

Key Documents

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Product Name

Poly(pyromellitic dianhydride-co-4,4′-oxydianiline), amic acid solution, 12.0 wt. %±0.5 wt. % (80% NMP/20% xylene)

form

viscous liquid

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

Quality Level

300

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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.

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.

Legal Information

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

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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

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

84.2 °F - closed cup

flash_point_c

29 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ3490
MKCX9991
MKCX5447
MKCX2622
MKCX2621

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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
Bendable integrated circuits on plastic substrates by use of printed ribbons of single crystalline silicon
Ahn JH
Applied Physics Letters, 90 (2007)
Ultrathin polymer membranes for high throughput CO2 capture
Spadaccini CM
Energy Procedia, 4, 731-736 (2011)
CO2/CH4 mixed gas separation using carbon hollow fiber membranes
Yoshimune M and Haraya K
Energy Procedia, 37, 1109-1116 (2013)

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