Soluble, electrically conducting oligomers, process for their preparation, and their use

    公开(公告)号:DE3717669A1

    公开(公告)日:1988-12-15

    申请号:DE3717669

    申请日:1987-05-26

    Applicant: HOECHST AG

    Abstract: The invention relates to oligomers which are intrinsically electrically conducting and comprise three to ten structural units, which are completely soluble, in the oxidised form, in dipolar aprotic solvents at room temperature, and which also contain structural units derived from at least one monomer of the formula (I) in which R is a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4 and R is a hydrogen atom, a C1-C12-alkyl group, a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4, or R together with R is -O(CH2)m-CH2 or -O(CH2)m-O- where m = 1 to 12. The invention relates furthermore to a process for the preparation of these oligomers by electrochemical polymerisation of at least one monomer of said formula (I) in the presence of an electrolyte solvent and a conductive salt, the anode consisting of carbon and having a specific surface area of at least 0.02 m /g and a network (reticulated), sponge, fabric or felt structure; the electrolyte is a dipolar aprotic solvent, the electrolyte system is not moved or is moved only slightly relative to the anode, the reaction temperature is in the range from -60 to 80@C and the monomer concentration is from 0.01 to 5 mol/l of electrolyte solvent. The oligomers according to the invention can be employed with particular suitability for coating purposes.

    5.
    发明专利
    未知

    公开(公告)号:DE3736114A1

    公开(公告)日:1989-07-13

    申请号:DE3736114

    申请日:1987-10-26

    Applicant: HOECHST AG

    Abstract: In conventional electrically conducting polymers in the oxidised (doped) form, the anions can be replaced as desired if the polymer in solution is combined with a salt which contains the proposed anion and the solution equilibrium is adjusted taking into account the solubility products of the salts present. In this way, the properties of the electrically conducting polymers can be tailored to various applications.

    6.
    发明专利
    未知

    公开(公告)号:DE3750650D1

    公开(公告)日:1994-11-17

    申请号:DE3750650

    申请日:1987-08-21

    Applicant: HOECHST AG

    Abstract: The intrinsically electrically conductive polymers, preferably oligomers, are, in the oxidised form, fully soluble in dipolar aprotic solvents at room temperature and contain structural units derived from at least one monomer of the formula (I) in which R is a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4 and R is a hydrogen atom, a C1-C12-alkyl group, a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4, or R and R together are -(OCH2)m-CH2 or -O(CH2)m-O- where m = 1 to 12. These polymers are prepared by electrochemical polymerisation of at least one monomer of this formula (I) in the presence of a conductive salt, where the anode has a specific surface area of at least 0.01 m /g and preferably has a grid, sponge, woven or felt structure, the electrolyte solvent is dipolar and aprotic, and the electrolyte system is only agitated gently, or not at all, relative to the anode. The polymers according to the invention are particularly suitable for coating purposes.

    8.
    发明专利
    未知

    公开(公告)号:DE3804520A1

    公开(公告)日:1989-08-24

    申请号:DE3804520

    申请日:1988-02-13

    Applicant: HOECHST AG

    Abstract: The invention relates to electrically conducting polymers which are obtainable as self-supporting films or composite bodies and which contain structural units which are derived from at least one monomer of the formula (I) (I) wherein R1 represents a C1-C12-alkoxy group and R2 represents a C1-C12-alkyl group. The invention furthermore relates to a process for preparing said polymers by oxidative polymerization of at least one monomer of said formula (I). The polymers according to the invention may be used, in particular, for applications for which high chemical, mechanical or thermal stability simultaneously accompanied by high electrical conductivity is necessary and of advantage.

    9.
    发明专利
    未知

    公开(公告)号:AT112883T

    公开(公告)日:1994-10-15

    申请号:AT87112128

    申请日:1987-08-21

    Applicant: HOECHST AG

    Abstract: The intrinsically electrically conductive polymers, preferably oligomers, are, in the oxidised form, fully soluble in dipolar aprotic solvents at room temperature and contain structural units derived from at least one monomer of the formula (I) in which R is a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4 and R is a hydrogen atom, a C1-C12-alkyl group, a C1-C12-alkoxy group or -O(CH2CH2O)nCH3 where n = 1 to 4, or R and R together are -(OCH2)m-CH2 or -O(CH2)m-O- where m = 1 to 12. These polymers are prepared by electrochemical polymerisation of at least one monomer of this formula (I) in the presence of a conductive salt, where the anode has a specific surface area of at least 0.01 m /g and preferably has a grid, sponge, woven or felt structure, the electrolyte solvent is dipolar and aprotic, and the electrolyte system is only agitated gently, or not at all, relative to the anode. The polymers according to the invention are particularly suitable for coating purposes.

    10.
    发明专利
    未知

    公开(公告)号:DE3884670D1

    公开(公告)日:1993-11-11

    申请号:DE3884670

    申请日:1988-05-21

    Applicant: HOECHST AG

    Abstract: A coating composition comprising a soluble oligomer of substituted thiophenes with or without a soluble polymer produces, on application from solution in a dipolar aprotic solvent, firmly adhering electrically conductive coats on non-conducting or semiconducting materials. In this way it is possible to produce antistatic films and fibres and shapes for the purposes of electronics and electrical equipment.

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