182702

Poly(vinylidene fluoride)

average M_w ~534,000 by GPC, powder

• Sinônimo(s): PVDF
• Fórmula linear: (CH₂CF₂)_n
• Número CAS: 24937-79-9
• Número MDL: MFCD00084470
• Código UNSPSC: 12162002
• ID de substância PubChem: 24851010
• NACRES: NA.23

Propriedades

• pressão de vapor: 15 mmHg ( 32 °C)
• forma: powder
• peso molecular: average M_w ~534,000 by GPC
• índice de refração: n20/D 1.42
• temperatura de transição: T_g −38 °C; T_m 171 °C
• densidade: 1.74 g/mL at 25 °C
• cadeia de caracteres SMILES: FC(F)=C
• InChI: 1S/C2H2F2/c1-2(3)4/h1H2
• chave InChI: BQCIDUSAKPWEOX-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: Eyeshields, Gloves, type N95 (US)