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Sigma-Aldrich

Polypyrrole-block-poly(caprolactone)

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

Synonyme(s) :

Biotron PP-NM, PCL-block-PPy

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About This Item

Code UNSPSC :
12352103

Forme

liquid (dispersion)

Niveau de qualité

100

Contient

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)

Conductivité

10-40 S/cm (bulk)

Catégories apparentées

Description générale

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. Thicker and more conducting films can be prepared by air spraying the dispersion on a substrate. 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.

Caractéristiques et avantages

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

Attention

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

Autres remarques

Will settle over time. Must be sonicated before use

Informations légales

Pictogrammes

FlameExclamation markHealth hazard
GHS02,GHS07,GHS08

Mention d'avertissement

Danger

Classification des risques

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

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

66.9 °F

Point d'éclair (°C)

19.4 °C

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Polypropylene composites for polymer electrolyte membrane fuel cell bipolar plates.
Yeetsorn R, et al.
Macromolecular Symposia, 264(1) (2008)
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)
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
Synthesis and characterization of polypyrrole-polyvinyl alcohol composite film with various organic acids dopants and theri gas sensing behaviour
Dupare DB and Aswar AS
Indian Journal of Chemical Technology, 18, 446-450 (2011)
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