406597
Poly[(phenyl isocyanate)-co-formaldehyde]
average Mn ~400
Synonym(s):
PMDI, Polymethylene polyphenyl isocyanate
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About This Item
Linear Formula:
[C6H3(NCO)CH2]n
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
MDL number:
vapor density
8.6 (vs air)
form
liquid
specific activity
~3.2 isocyanate groups/molecule
mol wt
average Mn ~400
refractive index
n20/D 1.634
viscosity
1,800 cP(25 °C)(lit.)
bp
392 °C/5 mmHg
density
1.2 g/mL at 25 °C (lit.)
SMILES string
[H]C([H])=O.O=C=Nc1ccccc1
General description
Poly[(phenyl isocyanate)-co-formaldehyde] (P-MDI) is a chain extender with one isocyanate group attached to each of the phenyl groups. It is a liquid polymer that is used to maintain uniformity in the cross-linking reaction between different polymeric units during the curing process. Its crosslinking sites (−NCO) allow it to be utilized in the preparation of polyurethanes.
Application
P-MDI is an isocyanate that can be used in the preparation of polyurethane resins, films and foams. It can form mechanically robust films which are resistant to solvents and can be used as OTFT based electrodes in biomaterials based applications.
PPIF can be blended with a diol to form a polyurethane mixture with characteristic −NCO peaks. It can also be used as a cross-linker to form high tensile dielectric materials for potential application in organic electronics.
Features and Benefits
High viscosity, high functionality oligomer.
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Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
target_organs
Respiratory system, Respiratory system,Eyes,Lungs
Storage Class
10 - Combustible liquids
wgk
WGK 1
Regulatory Information
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Highly cross-linked polyurethane with enhanced stability of second-order nonlinear optical properties.
Park C, et al.
Macromolecules, 28(10), 3713-3717 (1995)
Polyfunctional active coatings with damage-triggered water-repelling effect.
Latnikova A, et al.
Soft Matter, 7(2), 369-372 (2011)
Biomaterials-based organic electronic devices.
Bettinger CJ and Bao Z
Polymer International, 59(5), 563-567 (2010)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 406597-100ML | 04061838146489 |