• 제목/요약/키워드: Conducting polymers

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Preparation of polyaniline/cyanoethyl resin blends

  • Kim, Tae-Kyun;Kim, Seong-Hun;Oh, Kyung-Wha
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 The Korea-Japan Joint Symposium
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    • pp.93-93
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    • 2003
  • Electrically conducting polyaniline/cyanoethyl resin (PANI/Cyan) blends were prepared by in situ polymerization. The mechanical properties of the blend films increased with increasing cyanoethyl resin and the blend films have moderate conductivity.

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Electrical Capacitance of Polypyrrole-Perchlorate and Polypyrrole-Naflon Film Electrodes

  • 엄재웅;백운기
    • Bulletin of the Korean Chemical Society
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    • 제17권4호
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    • pp.349-352
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    • 1996
  • Electrical capacitance at the interface between electrolyte solution and conducting polypyrrole film electrode was measured by a simple electrochemical method. The polymer films were electropolymerized in the presence of perchlorate (PPy-ClO4) or Nafion (PPy-Nafion) anions as the dopant ions. Both polymers exhibited large double layer capacitances which were slightly potential dependent within the potential range where the polymers are conductive. The capacitance increased in proportion to the polymer thickness. The specific capacitance were about 10 Fg-1and 44 F g-1 for PPy-Nafion and PPy-ClO4, respectively.

Phenothiazine계 전도성고분자의 합성 및 유기박막태양전지로의 적용 연구 (Synthesis and Photovoltaic Properties of Conducting Polymers Based on Phenothiazine)

  • 유한솔;박용성
    • 공업화학
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    • 제24권1호
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    • pp.93-98
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    • 2013
  • 본 연구에서는 고온 고압반응을 통하여 4종의 전도성 고분자 poly[(N-butyl-phenothiazine)-sulfide] (PBPS), poly[(N-hexyl-phenothiazine)-sulfide] (PHPS), poly[(N-decyl-phenothiazine)-sulfide] (PDPS), poly[(N-(2-ethylhexyl)-phenothiazine)-sulfide] (PEHPS)를 합성하였다. 각 단계의 합성된 화합물의 구조는 $^1H-NMR$을 통하여 확인하였고, UV-Vis, cyclic voltammetry, GPC를 이용하여 합성된 고분자의 물성을 확인하였다. PBPS, PHPS, PDPS, PEHPS의 최대흡수파장은 각각 338, 341, 340, 334 nm이었으며, 각 고분자의 광학적 밴드 갭은 3.11, 3.13, 3.16, 3.05 eV이었다. 유기박막태양전지로서의 적용가능성을 확인하기 위해 합성된 고분자를 전자 받개 물질인 $PC_{71}BM$과 블렌딩하여 ITO/PEDOT : PSS/polymer (PBPS, PDPS) : $PC_{71}BM$ (1 : 3, w/w)/$BaF_2$/Ba/Al 구조의 소자를 제작하였고, solar simulator로 광전변환효율을 측정하였다. PBPS의 광전변환효율은 0.076%이었고, PDPS의 광전변환효율은 0.136%이었다.

Linear and network structures of polymer electrolyte based on phosphate and polyether copolymers

  • Kim, Jun-Young;Kim, Seong-Hun
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 1998년도 가을 학술발표회논문집
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    • pp.232-235
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    • 1998
  • ion conducting polymers have been extensively investigated because of their potential application as an electrolyte in solid state batteries [1]. Among the polymer electrolytes, solid polymer electrolytes (SPEs) composed of ion conducting polymer and alkali metal salt have many advantages such as high ionic conductivity, high energy density and light weight. This made them suitable replacement for liquid electrolytes. (omitted)

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Fabrication of Poly(3,4-ethylenedioxythiopene) Patterns using Vapor Phase Polymerization

  • 조보람;성명모
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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    • pp.265.2-265.2
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    • 2013
  • We fabricate poly(3,4-ethylenedioxythiopene patterns using liquid-bridge-mediated nanotransfer (LB-nTM) printing via vapor phase polymerization (VPP). LB-nTM printing method can simultaneously enable the synthesis, alignment and patterning of the nanowires from molecular ink solutions. Two- or three-dimensional complex structures of VPP-PEDOT were directly fabricated over a large area using many types of molecular inks. VPP method is a versatile technique that can be used to obtain highly conducting coatings of conjugated polymer on both conducting and non-conducting substrates. The PEDOT patterns has analyzed crystallinity from X-ray diffraction pattern and select-area diffraction patterns. In addition, the PEDOT pattern has high conductivity compared other conducting polymers.

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Conducting Polymers with Functional Dopants and their Applications in Energy, Environmental Technology, and Nanotechnology

  • Kim, Sung Yeol;Song, Hyun-Kon
    • 청정기술
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    • 제21권1호
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    • pp.12-21
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    • 2015
  • 전도성 고분자를 이용한 새로운 기능성 재료의 개발은 에너지, 환경, 나노 기술 분야 발전에 크게 기여할 것으로 기대를 모으고 있다. 최근에는 전도성 고분자에 기능성 도펀트(functional dopant)를 삽입하여 고성능화에 초점을 맞춘 연구들이 많이 수행되고 있다. 본 총설은 새로운 전도성 고분자 합성의 관점으로 쓰여진 다른 문헌들과 달리, 삽입되는 기능성 도펀트의 역할과 응용 분야를 중심으로 서술하였다. 대표적인 기능성 도펀트의 종류로는 산화환원 활성(redox-active) 분자, 카본나노물질, 바이오물질, 킬레이팅(Chelating) 분자 등이 있으며, 각각의 도펀트의 고유한 특징에 따라 베터리, 수처리용 분리막, 센서 등 다양한 분야에 활용될 수 있다. 본 총설에서는 각각의 기능성 도펀트가 첨가 되었을 때 장점과 응용 방향에 대해 살펴 보고, 전도성 고분자의 안정성 향상을 위한 방법과 고려해야 할 점들에 대하여 제안하고자 한다.

고온/저가습 고분자전해질 연료전지를 위한 이온성 액체 기반 고분자 전해질막 개발 (Development of PolymerElectrolytes Based on Ionic Liquids forHigh Temperature/Low Humidity PEFC Applications)

  • 새트팔 싱 세콘;박진수;조은경;박구곤;김창수;이원용
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 추계학술대회 논문집
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    • pp.40-43
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    • 2008
  • High temperature polymer electrolyte membranes incorporating ionic liquids (ILs) in different polymers such as commercial fluorinated polymers, sulfonated polymers and recasted nafion have been developed. ILs based on imidazolium cation and different anions possess high ionic conductivity and good thermal stability and have been used in the present study. The membranes containing IL show conductivity ${\sim}10^{-2}S\;cm^{-1}$ above $100^{\circ}C$ under anhydrous conditions and are thermally stable up to $250-300^{\circ}C$. IL acts as a conducting medium in these electrolytes and plays the same role as played by water in fully hydrated nafion membranes. Due to high conductivity and good thermal stability, these membranes are promising materials for PEFCs at higher temperatures under anhydrous conditions.

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나노 사이즈 폴리파이롤의 합성 조건에 따른 크기 변화 (Effect of Polymerization Conditions on the Size Development of Nano-sized PPy)

  • Kim, Hyemin;Park, Chong-Rae
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 가을 학술발표회 논문집
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    • pp.171-172
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    • 2003
  • Electrically conducting polymers have attracted a great deal of attention because of their unusual electronic Properties.1 One of them, polypyrrole has been widely studieddue to its high conductivity and good environmental stability. 2Especially polypyrrole nano-Particles and -fibers are interesting because of their unique properties and applications. Recently amorphous polypyrrole nano-particles were fabricated using microemulsion Polymerization at low temperature. (omitted)

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스마트 의류용 전도성 직물의 제조 및 특성 분석 (Fabrication of active cooling e-Textiles)

  • 이승아;이창환;김기태;김주용
    • 한국염색가공학회지
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    • 제20권6호
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    • pp.82-86
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    • 2008
  • Cooling function is definitely one of the most desirable attribute of clothing. In spite of the recent progress on phase changing material(PCM) research, the final products with sufficient amount of cooling capability have not yet to be developed in market. A new concept of cooling fabrics has been proposed by applying "Peltier effect" to textile materials. It occurs whenever electrical current flows through two dissimilar conductors; depending on the direction of current flow, the junction of the two conductors is absorbed or released heat. This effect has been tested on P-type and N-type conducting polymers. A P-type conductive polypyrrole coated fabric was synthesized by in-situ polymerization on plain weave PET to make conductive fabrics. And an N-type electrically conductive material was synthesized by treatment of MWNT and polyethyleneimine(PEI). A noticeable amount of temperature difference has been found on the fabrics.

전도성 고분자 복합체 제조를 위한 신합성 연구(II) : 중합변수에 따른 전도성 고분자 복합체의 전도도 변화 (Process for the Preparation of Conducting Polymer Composites (II) : The Effect of Polymerization Parameters on Conductivity)

  • 손석희;박영준;김중현
    • 공업화학
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    • 제7권6호
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    • pp.1061-1068
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    • 1996
  • 본 연구는 다공성 입자에 전도성 단량체를 침투시켜서 전도성 고분자 복합체를 제조하는 연구로 다단계 seed 중합법을 이용하여 입자를 제조하고, 용매추출법으로 선형 고분자를 제거하는 방법으로 specific pore volume 및 specific surface area가 각기 다른 다공성 입자를 제조하였고, 이 다공성 입자를 모체 고분자로 하여 도핑제를 산화용액에 녹여 흡수시키고 건조한 뒤 전도성 단량체를 유기용매에 녹여 다공성 입자에 침투시킨 후 중합하여 전도성 복합체를 제조하였다. 이때, 모체 고분자에 침투되는 전도성 단량체의 농도 및 유기용매와 산화제의 산화용매 등을 중합 변수로하여 이 변수들과 전도도와의 상관 관계를 살펴보았다.

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