3.
    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.

    Prepn. of 4,4'-di:alkoxy-2,2'-bi:thiophene used for oxidn. stable polymers - by reacting 3-alkoxy:thiophene with metallo-organic cpd., then tri:methyl:chloro:silane using copper halide catalyst and acid hydrolysis

    公开(公告)号:DE4105897A1

    公开(公告)日:1992-08-27

    申请号:DE4105897

    申请日:1991-02-26

    Applicant: HOECHST AG

    Abstract: Prepn. of 4,4'-dialkoxy-2,2'-bithiophenes of formula (I) comprises reacting a 3-alkoxythiophene with a metalorganic cpd. then reacting with trimethylchlorosilane (TMCS) and metallising the trimethylsilyl-3-alkoxythiophene in position 5 - under the catalytic action of a copper (II) halide in 5,5'-ditrimethylsilyl-4,4- dialkoxy-2,2'-bithiophene then acid hydrolysis with cleavage of the trimethylsilyl gp. to give (I). In (I) R1 = opt branched 1-12C alkoxy or -O(CH2CH2O)nCH3; n= 1-4; and R2 = H, halogen or opt. branched 1-12C alkyl. Pref. the 3-alkoxythiophene is reacted with butyllithium, esp. in a stoichiometric ratio. USE/ADVANTAGE - Electropolymerisation or chemical oxidn. of (I) provides intrinsic electroconducting polymers with stability and capacity properties, e.g. esp. high optical transmission. Polymerisation of (I) (alkoxy = methoxy) gives high positive charge per thiophene-units. Polymers from it, have better oxidn. stability than the 3,3'-derivs.

    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:ES2064307T3

    公开(公告)日:1995-02-01

    申请号:ES87112128

    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: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.

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