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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
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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This Item
418005418560433497
Poly[(phenyl isocyanate)-co-formaldehyde] average Mn ~340

Sigma-Aldrich

372986

Poly[(phenyl isocyanate)-co-formaldehyde]

Poly(hexamethylene diisocyanate) viscosity 1,300-3,000 cP (25 °C)(lit.)

Sigma-Aldrich

418005

Poly(hexamethylene diisocyanate)

Poly(melamine-co-formaldehyde) methylated, solution average Mn ~432, 84 wt. % in 1-butanol

Sigma-Aldrich

418560

Poly(melamine-co-formaldehyde) methylated, solution

Poly(propylene glycol), tolylene 2,4-diisocyanate terminated average Mn ~2,300 (narrow MW distribution), isocyanate ~3.6 wt. %

Sigma-Aldrich

433497

Poly(propylene glycol), tolylene 2,4-diisocyanate terminated

refractive index

n20/D 1.628

refractive index

n20/D 1.502

refractive index

n20/D 1.515

refractive index

n20/D 1.4742

viscosity

180 cP(25 °C)(lit.)

viscosity

1,300-3,000 cP(25 °C)(lit.)

viscosity

-

viscosity

≤1,700 cP(40 °C)(lit.)

density

1.2 g/mL at 25 °C (lit.)

density

1.12 g/mL at 25 °C

density

1.157 g/mL at 25 °C

density

1.05 g/mL at 25 °C

vapor density

8.6 (vs air)

vapor density

-

vapor density

-

vapor density

-

specific activity

~2.7 isocyanate groups/molecule

specific activity

-

specific activity

-

specific activity

-

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

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Certificates of Analysis (COA)

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25G
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Poly(propylene glycol) average Mn ~425

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Poly(propylene glycol)

Phenyl isocyanate ≥98%

Sigma-Aldrich

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Poling and optical studies of DNA NLO waveguides.
Heckman EM, et al.
Proceedings of SPIE, 98(10), 54-54 (2011)
DNA biopolymer conductive cladding for polymer electro-optic waveguide modulators.
Heckman EM, et al.
Applied Physics Letters, 98(10), 54-54 (2011)
New materials with detachable azobenzene: effective, colourless and extremely stable surface relief gratings.
Goldenberg LM, et al.
Journal of Materials Chemistry, 19(43), 8068-8071 (2009)
Electric poling and relaxation of thermoset polyurethane second-order nonlinear optical materials: Role of cross-linking and monomer rigidity.
Zhang C, et al.
Macromolecules, 34(2), 235-243 (2001)
Biomaterials-based organic electronic devices.
Bettinger CJ and Bao Z
Polymer International, 59(5), 563-567 (2010)
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