A METHOD OF SYNTHESIZING A WATER-DISPERSIBLE CONDUCTIVE POLYMERIC COMPOSITE

    公开(公告)号:WO2018164641A1

    公开(公告)日:2018-09-13

    申请号:PCT/SG2018/050105

    申请日:2018-03-07

    Abstract: A method of synthesizing a water-dispersible conductive polymeric composite comprising mixing an aqueous suspension comprising optionally substituted azulene monomers and a dopant precursor such as polystyrene sulfonic acid with an oxidizing agent and a catalyst to form a doped poly(azulene) suspension wherein the poly(azulene)/dopant molar ratio is 1 :1 to 1 :6. The doped poly(azulene) suspension is then contacted with acidic and basic resins to remove the oxidizing agent and catalyst. The resulting suspension is then filtered through a membrane such as polyvinylidene fluoride (PVDF) to afford a purified suspension comprising the water-dispersible conductive polymeric composite. A water-dispersible conductive polymeric composite comprising an optionally substituted poly(azulene) doped by a dopant such as polystyrene sulfonate wherein the poly(azulene)/dopant molar ratio is 1 :1 to 1 :6 is also disclosed.

    THERMOELECTRIC DEVICE
    4.
    发明申请

    公开(公告)号:WO2020214091A1

    公开(公告)日:2020-10-22

    申请号:PCT/SG2020/050229

    申请日:2020-04-14

    Abstract: Thermoelectric module (200, 300) comprising: a substrate (201); a first material (205) of a first doping type forming a first leg extending on a surface of the substrate (201), the first leg comprising a first end oriented towards a first region of the surface and a second,opposite end oriented towards a second region of the surface; and a second material (203) of a second doping type forming a second leg extending on the surface of the substrate (201), the second leg comprising a first end oriented towards the first region of the surface and a second, opposite end oriented towards the second region of the surface, such that the first and second legs are substantially parallel to each other,wherein the first end of the first leg is in electrical connection with the first end of the second leg, and wherein the first and second doping types have opposite polarity, such that when a heat flux (209) is applied between the first region and the second region of the surface, a potential difference arises between the second end of the first leg and the second end of the second leg, and wherein the substrate (201), the first material (205),and the second material (203) are substantially transparent to visible light.

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