182702

Poly(vinylidene fluoride)

average M_w ~534,000 by GPC, powder

• Sinónimos: PVDF
• Fórmula lineal: (CH₂CF₂)_n
• Número de CAS: 24937-79-9
• Número MDL: MFCD00084470
• Código UNSPSC: 12162002
• ID de la sustancia en PubChem: 24851010
• NACRES: NA.23

Propiedades

• presión de vapor: 15 mmHg ( 32 °C)
• formulario: powder
• mol peso: average M_w ~534,000 by GPC
• índice de refracción: n20/D 1.42
• temperatura de transición: T_g −38 °C; T_m 171 °C
• densidad: 1.74 g/mL at 25 °C
• cadena SMILES: FC(F)=C
• InChI: 1S/C2H2F2/c1-2(3)4/h1H2
• Clave InChI: BQCIDUSAKPWEOX-UHFFFAOYSA-N

Descripción

Descripción general

Poly(vinylidene fluoride) PVDF is a semi crystalline non-centrosymmetric polymer which exhibits piezo-, pyro- and ferroelectric properties. It is a linear polymer that shows permanent electric dipoles perpendicular to the direction of the molecular chain. These dipoles result from the difference in electronegativity between the atoms of hydrogen and fluorine with respect to carbon. Depending on the processing conditions, PVDF exhibits several different crystalline phases (α,β,γ,δ). The β phase of PVDF is the phase that exhibits the best ferroelectric and piezoelectric properties.

Aplicación

Poly(vinylidene fluoride) (PVDF) is used in nanoporous electrodes. It is used to synthesize composites comprising of ultrafine fibers of PVDF embedded with carbon nanotubes. It can be used in sensors, actuators, for energy storage, sphygmomanometers, pressure sensors and nanogenerators, lithium ion batteries. Additionally, it may find application as matrix for PVDF-nanoclay nanocomposites and PVDF acrylic rubber/clay nanocomposite hybrid.

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)