Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
  • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
  • H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
  • H01B1/124—Intrinsically conductive polymers
  • H01B1/128—Intrinsically conductive polymers comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes

Definitions

• the invention relates to a process for the production of electrically conductive polyaromatics with electrical conductivity values greater than 10 -2 S / cm and their use in the electrical industry for the production of solar cells, for the conversion and fixation of radiation and for the production of electrical and magnetic switches and for antistatic equipment of plastics.
• the invention was based on the object of the effects known per se in the case of the polyphenylenes which are arranged in the form of rods according to the formula: to polycyclic hydrocarbons in which the ring systems are condensed or fused.
• This object was achieved according to the invention by adding 0.5 to 5% by weight, based on the polyaromatics used, of sodium, potassium, rubidium, cesium or their amides to the polyaromatics with the exclusion of water moisture and oxygen.
• Na, K, Rb, Cs or their amides in tetrahydrofuran, dimethoxyglycol, anthracene, naphthalene or 2-methylstyrene in each case in a molar ratio of 1: 1 to 1:50, preferably 1: 2 to 1: 3, are added.
• Polyaromatics are understood to mean higher molecular weight products which do not have a linear structure and are - corresponding to the polyphenylenes linked in the para position, but rather so-called polycyclic aromatic hydrocarbons and contain fused benzene nuclei - in accordance with the information given by E. Clav "Aromatic hydrocarbons” II. Edition 1952, Springer Verlag, Heidelberg p. VI-II - and contain more than two benzene nuclei in a polycyclic system and molecular weights between 300 and 3000, preferably between 400 and 1500.
• Preferred polycyclic hydrocarbons are: tetraphenylene, 1,2,7,8-dibenzperylene, bianthene, 3,4,8,9-dibenzopyrene, terylene, peropyrene, anthanthrene, zethrene, fluoranthene, 11,12-peri naphthylene fluoranthene, decacycles, naphtho [ 2 ', 7', 1,8] -anthrene, dihydro-triangulene.
• the electrical conductivity values are measured in S / cm at 30 ° C. , the measurement itself is carried out according to the method of F. Beck, reports Bunsengesellschaft, Physikalische Chemie "68 (1964) pages 558 to 567.
• the electrical conductivity values of the conductive polyaromatics according to the invention are greater than 10 -2 S / cm.
• the additives are incorporated in the absence of moisture (water) and oxygen (air), so it is preferred to work in an argon atmosphere.
• Auxiliary liquids such as tetrahydrofuran, dimethoxyglycol, anthracene, naphthalene or ⁇ -methylstyrene, each in a molar ratio of 1: 1 to 1:50, are preferably used, which are removed in vacuo after incorporation at temperatures below 30.degree.
• the above molar ratio is preferably 1: 2 to 1: 3.
• the additives mentioned allow electrical conductivity increases of several orders of magnitude to be achieved.
• the output conductances of the polyaromatics were about 10 -13 S / m c, but provide after addition of the additives according to the invention conductivities greater than 10 -2 S / cm.
• the electrically conductive polyaromatics produced according to the invention with electrical conductivities greater than 10 -2 S / cm are suitable for the antistatic finishing of plastics, for the production of solar cells, for the conversion and fixation of radiation as well as for the production of electrical and magnetic switches.
• the addition of the strong Lewis bases to the polyaromatic forms so-called n-conductors.

Landscapes

• Physics & Mathematics (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Artificial Filaments (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
• Treatments Of Macromolecular Shaped Articles (AREA)
• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
• Tires In General (AREA)
• Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6094468

Family Applications (1)

Country Status (2)

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• 1980
  • 1980-02-13 DE DE19803005300 patent/DE3005300A1/de not_active Withdrawn
• 1981
  • 1981-01-28 EP EP81100583A patent/EP0034273A3/fr not_active Withdrawn

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