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182702

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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)

Quality Level

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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1 of 4

This Item
33884281310427152
Poly(vinylidene fluoride) average Mw ~534,000 by GPC, powder

182702

Poly(vinylidene fluoride)

Barium titanate(IV) powder, <2 μm, 99.5% trace metals basis

338842

Barium titanate(IV)

Poly(ethylene glycol) 35,000

81310

Poly(ethylene glycol)

Poly(vinylidene fluoride) average Mw ~180,000 by GPC, average Mn ~71,000, beads or pellets

427152

Poly(vinylidene fluoride)

transition temp

Tg −38 °C, Tm 171 °C

transition temp

-

transition temp

-

transition temp

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

form

powder

form

powder

form

flakes

form

beads or pellets

density

1.74 g/mL at 25 °C

density

6.08 g/mL at 25 °C (lit.)

density

-

density

1.78 g/mL at 25 °C

vapor pressure

15 mmHg ( 32 °C)

vapor pressure

-

vapor pressure

-

vapor pressure

15 mmHg ( 32 °C)

mol wt

average Mw ~534,000 by GPC

mol wt

-

mol wt

average Mn 35,000

mol wt

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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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
Mohammad Mahdi Abolhasani et al.
PloS one, 9(2), e88715-e88715 (2014-02-20)
In this paper, intercalation of nanoclay in the miscible polymer blend of poly(vinylidene fluoride) (PVDF) and acrylic rubber(ACM) was studied. X-ray diffraction was used to investigate the formation of nanoscale polymer blend/clay hybrid. Infrared spectroscopy and X-ray analysis revealed the

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