CAS 24937-79-9 Poly(vinylidene fluoride) - Materials / Alfa Chemistry

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Hydrophobic Polymers

Poly(vinylidene fluoride)

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Catalog Number

ACM24937799-2

Product Name

Poly(vinylidene fluoride)

Structure

CAS

24937-79-9

Category

Hydrophobic Polymers

Description

Inert coating resin.
Polydispersity 2.5-3.0
SOLUBILITY: DMF, DMAc, DMSO, ethylene carbonate

Molecular Formula

(-CH2CF2-)n

Melting Point

155-160 °C

Purity

Tech

Density

1.76 g/cm3

Storage

Store at room temperature

Color/Form

Colorless gas;Colorless gas [Note: Shipped as a liquefied compressed gas].;Crystals ... Available forms: powder, pellets, solution, and dispersion

Complexity

Covalently-Bonded Unit Count

EC Number

200-867-7;607-458-6

Exact Mass

64.012456g/mol

Formal Charge

Heat of Vaporization

1.7712X10+07 J/kmol at melting point

Heavy Atom Count

ICSC Number

0687

Log P

1.24 (LogP);log Kow = 1.24;1.24

MeSH Entry Terms

1,1-difluoroethylene;vinylidene fluoride

Monoisotopic Mass

64.012456g/mol

NSC Number

267683

Odor

Nearly odorless;Faint, ethereal

Other Experimental

Conversion factors: 1 mg/L is equivalent to 382 ppm and 1 ppm is equivalent to 2.62 mg/cu m at 25 °C, 760 mm Hg;Critical density = 417 kg/cu m; Heat of formation = -345.2 kJ/mol at 25 °C; Heat of polymerization = -474.21 kJ/mol at 25 °C; explosive limits = 5.8-20.3 vol % in air;Critical molar volume: 154 cu cm/mol;Dipole moment = 1.3893;Explosive limits in air 5.5-21%;Heat of evaporation = 13189 J/mol at -40 °C;Liquid molar volume = 0.055194 cu m/kmol; Vapor pressure = 3X10+4 mm Hg at 25 C (calculated from experimentally derived coefficients);Sensitive to heat or stabilizers; alkyl boron and alkyl hyponitrite compounds, among others, initiate polymerization;Henry's Law constant = 3.79X10-1 atm-cu m/mol at 25 °C (est);Hydroxy radical reaction rate constant = 2.10X10-12 cu cm/molec-sec at 23 °C;Thermally stable from -62 to 148 °C; combustible, self-extinguishing and non-dripping; Tensile strength 7000 psi at 25 °C, yield strength 5,500 psi, elongation 300%, compression strength 10,000 psi, thermal conductivity 1.05 Btu/hr/sq ft/F/in; water absorption 0.04% in 24 hr; resistant to oxidative degradation, electricity, acods, alkalies, oxidizers, halogens;Specific gravity: 1.75-1.80; glass transition: -40 °C;Specific heat: 1255-1525 J/(kg K)

Refractive Index

n25/D 1.420

Rotatable Bond Count

RTECS Number

KW0560000

Stability

Chemical stability: Stable under recommended storage conditions.

UNII

3C1IX2905B

UN Number

1959;1959;1959;1959;1959

Vapor Density