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372986

Sigma-Aldrich

Poly[(phenyl isocyanate)-co-formaldehyde]

average Mn ~340

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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

vapor density

8.6 (vs air)

form

liquid

specific activity

~2.7 isocyanate groups/molecule

mol wt

average Mn ~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

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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.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

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

wgk_germany

WGK 1

Certificates of Analysis (COA)

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