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Poly(vinylidene fluoride)

average Mw ~534,000 by GPC, powder

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Synonym(s):
PVDF
Linear Formula:
(CH2CF2)n
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor pressure

15 mmHg ( 32 °C)

form

powder

mol wt

average Mw ~534,000 by GPC

refractive index

n20/D 1.42

transition temp

Tg −38 °C
Tm 171 °C

density

1.74 g/mL at 25 °C

SMILES string

FC(F)=C

InChI

1S/C2H2F2/c1-2(3)4/h1H2

InChI key

BQCIDUSAKPWEOX-UHFFFAOYSA-N

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This Item
427152347078427144
refractive index

n20/D 1.42

refractive index

n20/D 1.42

refractive index

-

refractive index

n20/D 1.42

transition temp

Tg −38 °C, Tm 171 °C

transition temp

brittleness temperature -62 °C (ASTM D 746), Tm 155-165 °C

transition temp

-

transition temp

brittleness temperature -62 °C (ASTM D 746), Tm 166-170 °C (ASTM D 3418)

density

1.74 g/mL at 25 °C

density

1.78 g/mL at 25 °C

density

-

density

1.78 g/mL at 25 °C

vapor pressure

15 mmHg ( 32 °C)

vapor pressure

15 mmHg ( 32 °C)

vapor pressure

15 mmHg ( 32 °C)

vapor pressure

15 mmHg ( 32 °C)

mol wt

average Mw ~534,000 by GPC

mol wt

average Mn ~71,000, average Mw ~180,000 by GPC

mol wt

average Mw ~530,000

mol wt

average Mn ~107,000, average Mw ~275,000 by GPC

General description

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.

Application

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Hot Plate Annealing at a Low Temperature of a Thin Ferroelectric P(VDF-TrFE) Film with an Improved Crystalline Structure for Sensors and Actuators.
Sensors (Basel, Switzerland), 14(10), 19115-19127 null
Shu-Hua Wang et al.
Nanoscale research letters, 9(1), 522-522 (2014-10-08)
Poly(vinylidene fluoride) (PVDF) ultrafine fibers with different proportions of multi-walled carbon nanotube (MWCNT) embedded have been fabricated using a modified electrospinning device with a rotating collector. With the increasing of MWCNT content, the β phase was noticeable enhanced, and the
Thermal-to-electric energy conversion of a nanoporous carbon
Yu Q, et al
Journal of Power Sources, 183(1), 403-405 (2008)
Chi Yan Lai et al.
Membranes, 4(1), 55-78 (2014-06-25)
Current commercial polymer membranes have shown high performance and durability in water treatment, converting poor quality waters to higher quality suitable for drinking, agriculture and recycling. However, to extend the treatment into more challenging water sources containing abrasive particles, micro
Wenzhong Ma et al.
Membranes, 4(2), 243-256 (2014-06-25)
The crystallization behaviors of two copolymers of PVDF were studied, and the effect of copolymerized chains on the crystallization behavior was investigated. The results indicated that both copolymers had a lowered crystallization temperature and crystallinity. The crystallization rate was improved

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