372986

Poly[(phenyl isocyanate)-co-formaldehyde]

average M_n ~340

• Synonym(s): PAPI 2027, PMDI, Polymethylene polyphenyl isocyanate
• Linear Formula: [C₆H₃(NCO)CH₂]_n
• CAS Number: 9016-87-9
• MDL number: MFCD00072953
• UNSPSC Code: 12162002
• PubChem Substance ID: 24863188
• NACRES: NA.23

Properties

• vapor density: 8.6 (vs air)
• form: liquid
• specific activity: ~2.7 isocyanate groups/molecule
• mol wt: average M_n ~340
• refractive index: n20/D 1.628
• viscosity: 180 cP(25 °C)(lit.)
• bp: 200 °C/5 mmHg
• density: 1.2 g/mL at 25 °C (lit.)
• SMILES string: [H]C([H])=O.O=C=Nc1ccccc1

Description

General description

Poly[(phenyl isocyanate)-co-formaldehyde] (PPIF) is a chain extender and a cross-linker that is used in the formation of a polyurethane system by forming amide linkages (−NCO).

Application

PPIF can be used as a cross-linker to DNA and CTMA based films for the fabrication of biomaterials for organic electronic devices. It can be used in the formation of polyurethane based materials for non-linear optical applications.

Safety Information

• Pictograms: GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H315,H317,H319,H332,H334,H335,H351,H373
• Precautionary Statements: P202 - P260 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 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 Code: 10 - Combustible liquids
• WGK: WGK 1