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Merck

735817

Polypyrrole-block-poly(caprolactone)

0.3-0.7 wt. % (dispersion in nitromethane), contains p-toluenesulfonate as dopant

Synonym(s):

Biotron PP-NM, Nanopatterning, block-copolymers, PCL-block-PPy

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About This Item

NACRES:
NA.23
UNSPSC Code:
12352103
Form:
liquid (dispersion)

Key Documents

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description

Electrodes

form

liquid (dispersion)

contains

p-toluenesulfonate as dopant

composition

Biotron PP polymer, 0.3-0.7 wt. % , ethanol, 4-8 wt. % , nitromethane, 90-95 wt. %

concentration

0.3-0.7 wt. % (dispersion in nitromethane)

conductivity

10-40 S/cm (bulk)

Quality Level

100

Related Categories

General description

Sheet resistance, spin cast thin films: 10,000-50,000 Ohms/sq

Average transmittance: 70-90%

Biodegradble conducting polymer for bomedical applications. PCL diol blocks have average molecular weight 2000 and PPy block have an average molecular weight of 4000 with a 25% doping level. Good biocompatibility with expected weight loss of 40% at 200 days in pH=7 buffer.

Application

Thin films can be prepared by spin casting the nitromethane dispersion at 1000 rpm. To spin coat a thin film at 1000 RPM, 30 seconds to 1 minute is usually enough time to spread this dispersion. Thicker and more conducting films can be prepared by air spraying the dispersion on a substrate. Any substrate that is compatible can be used. Sprayed films can be dried at 30-40 °C, then pressed between two polished dye plates at 1000-10,000 psi to increase film density, strength and scratch resistance. The drying time of the air sprayed film depends on the thickness of the prepared film. Try weighing the sample periodically during drying.

Features and Benefits

The block copolymer structure renders the conducting polymer polypyrrole dispersible in organic solvents and biodegradable.

Other Notes

Will settle over time. Must be sonicated before use

Legal Information

Disclaimer

Store this product at room temperature (do not refrigerate or freeze). Severe settling and separation will normally occur. Agitate, sonicate, and filter prior to use. A plug of glass wool in a pipette can be used for easy filtration. The shelf life of this product will vary depending on how it is stored and handled. Product should be discarded if heavy aggregation occurs, or if sonication / filtering are inadequate to produce a good casting solution. When spray coating is used, the user should take every precaution necessarily to prevent exposure to solvent vapors from this product

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Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Flam. Liq. 2 - Repr. 2

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

66.9 °F

flash_point_c

19.4 °C

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

735817-25G:4548173924434 + 735817-BULK: + 735817-VAR:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
MKCG1949
MKCF7670
MKBS2719V
MKBH7133V
MKBH7133

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Chemical Synthesis and Morphology of b?Naphthalene Sulfonic Acid-Doped Polypyrrole Micro/Nanotube.
Akinyeye R, et al.
Fullerenes, Nanotubes, and Carbon Nanostructures, 14 (2006)
Materials for Bioelectronic and
Biomedical Applications
Zhang Y, et al.
Material Matters, 8(1) null
Synergic effect in electrical conductivity using a combination of two fillers in PVDF hybrids composites.
da Silva AB, et al.
European Polymer Journal, 49(10), 3318-3327 (2013)
Polypropylene composites for polymer electrolyte membrane fuel cell bipolar plates.
Yeetsorn R, et al.
Macromolecular Symposia, 264(1) (2008)
Soluble conducting polypyrrole doped with DBSA?CSA mixed acid
Shen Y and Wan M
Journal of Applied Polymer Science, 68(8), 1277-1284 (1998)
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