• 제목/요약/키워드: conductive polyaniline

검색결과 38건 처리시간 0.014초

폴리아닐린의 in situ 중합에 의한 전도성 나일론 직물의 제조 (Electrically Conductive nylon 6 fabric prepared by in situ Polymerizationof Polyaniline)

  • 홍경화;김은애
    • 한국의류학회지
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    • 제23권2호
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    • pp.326-334
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    • 1999
  • Polyaniline(PAn)-nylon 6 composite fabrics were prepared by immersing the nylon 6 fabrics in 100% distilled aniline for specified diffusion time and drawn out. Then the excess aniline on the fabric surface was blotted and successive polymerization was initiate by immersing them into oxidant and dopant solution for in situ polymerization of polyaniline. Consequently highly conductive PAn-nylon 6 composite fabrics could be obtained and the conductivity reaches as high as 10-2 S/cm. The maximum conductivity was obtained when the fabric was immersed in 100% aniline at 4$0^{\circ}C$ for 3hours and polymerization was proceeded in 0.25M ammonium peroxydisulfate solution at 5$^{\circ}C$ for 1hour.

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전도성 폴리아닐린(Polyaniline)을 이용한 전기작동 종이(EAPap)의 굽힘변형 개선 (Bending Displace Improvement of Electro-active Paper Using Conductive Polyaniline Coating)

  • 김주형;윤성률;김재환
    • 한국소음진동공학회논문집
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    • 제18권12호
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    • pp.1310-1316
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    • 2008
  • Bi-layer and tri-layer structures of electro-active paper(EAPap) using conductive polyaniline(PANI) coating were investigated to improve bending displacement of cellulose EAPap. Two different counter ions, perchlorate($CIO_4^-$) and tetrafluoroborate($BF_4^-$), are used as dopant ions in the PANI processing. The actuation performances of hi-layer and tri-layer structure are evaluated in terms of tip displacement, blocked force, strain energy density and power output density. The actuation performance of the tri-layer actuator was better than the hi-layer structure, and the maximum displacement and blocked force of tri-layer $CIO_4^-$ doped-PANI-EAPap were 13.2 mm and 0.15 mN, respectively. Also the power output of the actuator is similar to the required power of biological muscle application.

NMRP 중합법을 이용한 전도성 폴리아닐린-수식 고분자의 제조와 특성 (Synthesis and Characterization of Conductive Polyaniline-Modified Polymers via Nitroxide Mediated Radical Polymerization)

  • Jaymand, Mehdi
    • 폴리머
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    • 제34권6호
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    • pp.553-559
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    • 2010
  • The paper describes the preparation and characterization of conductive polyaniline-modified polymers by growing of aniline onto functionalized poly(styrene-co-p-methylstyrene) [P(St-co-MSt)]. For this purpose, P(St-co-MSt) was synthesized via nitroxide mediated radical polymerization (NMRP) and then N-boromosuccinimide was used for introduction of bromine to the benzylic positions of copolymer. Afterwards, 1,4-phenylenediamine was linked to the brominated P(St-co-MSt) and functionalized copolymer $[P(St-co-MSt)-NH_2]$ was prepared. The graft copolymerization of aniline monomers onto functionalized P(St-co-MSt) was initiated by oxidized phenylamine groups after addition of ammonium peroxydisulfate (APS), and p-toluenesulfonic acid-doped PANI was chemically grafted onto P(St-co-MSt) via oxidation polymerization. The obtained terpolymer was studied by FTIR and UV-Vis spectroscopy and its thermal behaviour were examined by DSC and TGA analyses. The conductivity of terpolymer was measured by four-point probe method and electroactivity was measured by cyclic voltammetry (CV). The solubility of P(St-co-MSt)-g-PANI was examined in common organic solvents.

전도성 고분자와 절연성 고분자의 특성 및 동향 (Properties and Trends in Conductive and Insulating Polymers - A Review)

  • 장아영;이지수;이상오;이재웅
    • 한국염색가공학회지
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    • 제35권4호
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    • pp.274-283
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    • 2023
  • Conductive polymers are polymers that conduct electricity like metal conductors. Unlike typical organic polymers, they are polymers that have the electrical, magnetic, and optical properties of metals or semiconductors. For Example, these conductive polymers include Polypyrrole (PPy), Polyaniline (PANI), and Polythiophene (PT). On the other hand, Insulating polymers do not conduct electricity well while providing insulation, which is the opposite of conductivity. With the exception of conductive polymers, most polymers are non-conductors. Insulating polymers include polyimide (PI), polystyrene (PS), and poly(vinyl alcohol) (PVOH, PVA, or PVAl). Although many different polymers exist, we have simply illustrated the properties and recent developments of conductive and insulating polymers, which have opposite properties.

Polyaniline의 합성과 이를 이용한 고분자 발열체에 관한 연구 (A Study of Polymer Heater Using Conducting Polymer)

  • 임동준;임석범;양준모;김은옥;김영호
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
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    • pp.802-805
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    • 2001
  • Conductive polymer is insulator or semiconductor in initial state. Polyaniline(PANI) is a $\pi$-conjugated polymer that shows electric property changes, when it is contact with oxidant/reductor chemicals. Synthesis of polyaniline is used vacuum evaporation method, using by (NH$_4$)$_2$O$_{8}$과 NMP, NH$_2$NH$_2$, HCl, MH$_4$OH, etc. Doped PANI is used such a resistor, addition to graphite is increased conductivity. Applying contact voltage, samples show constant current and contact temperature.e.

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폴리아닐린/나일론 6 복합직물의 전기 전도도 향상 연구 (Conductivity Improvement of Polyaniline/Nylon 6 Fabrics)

  • 오경화;성재환;김성훈
    • 폴리머
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    • 제24권5호
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    • pp.673-681
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    • 2000
  • 플라즈마 처리가 나일론 6 직물의 표면 특성과 폴리아닐린/나일론 6 복합직물의 전도도에 미치는 영향을 연구하였다. 산소 플라즈마로 처리한 나일론 6 직물의 표면을 XPS 분석을 통해 확인한 결과 C-O, C-OH 등의 관능기가 도입되었으며, 이는 직물과 폴리아닐린의 결합력을 향상시켜 전기 전도도와 폴리아닐린 부착량을 증가시켰다. 또한 산소 플라즈마로 처리된 폴리아닐린/나일론 6 복합직물은 세탁과 마모에서도 우수한 안정성을 나타내었다. 초음파 처리는 매질에 발생된 cavitation과 진동에 의해 직물 내부로 아닐린을 확산시키는데 효과적이었으며, 이는 폴리아닐린/나일론 6 복합직물의 전기 전도도를 크게 향상시켰다. 아닐린의 농도와 중합욕에 침지 휫수가 증가함에 따라 전기 전도도와 복합직물의 형태안정성에 대한 영향을 살펴보았는데, 단량체 농도는 0.5M 까지는 증가함에 따라 전도도가 향상되었으며, 침지 횟수가 증가함에 따라서도 전도도가 향상되었다.

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다공막 주형에 의한 전도성 고분자 나노와이어의 합성 (Synthesis of Conductive Polymer Nano-wires by Porous Membrane Template)

  • 신화섭;염경호
    • 멤브레인
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    • 제22권1호
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    • pp.35-45
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    • 2012
  • 양극산화 알루미나(AAO)막의 나노 사이즈 미세공(세공 크기 20 nm, 10 nm 및 200 nm)을 주형으로 사용하여 전도성 고분자인 폴리피롤, 폴리아닐린 중합체 및 폴리피롤/폴리아닐린 공중합체 나노와이어를 제조하였다. 미세공 주형 내에서 전도성 고분자의 성장은 세공의 벽면을 따라 튜브 형태로서 성장하였으며, 3시간 이후에는 내부가 완전히 채워진 나노와이어가 형성되었다. AAO 막을 수산화나트륨 용액으로 퍼리하여 세공 내에 형성된 전도성 고분자 나노와이어를 회수 하였으며. 회수된 나노와이어�l 직경과 길이는 주형 막의 세공 형상과 일치하였다. 통상의 용액 중합법으로 제조된 전도성 고분자 분말과 비교하여 주형 합성법으로 제조된 전도성 고분자 나노와이어는 결정성과 열적 안정성이 향상되었으며, 전기 저항은 4~60% 감소하였다.

전도성 폴리머와 셀룰로오스 종이를 결합한 EAPap 작동기 (Conductive Polymer Coated Electro-active Paper (EAPap) as Hybrid Actuator)

  • 윤성률;김재환
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2004년도 추계학술대회논문집
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    • pp.275-278
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    • 2004
  • Electro-Active Paper (EAPap) is attractive for EAP actuator due to its merit in terms of light weight, dry condition, large displacement output, low actuation voltage and low power consumption. The EAPap is based on cellulose paper, and is shown to involve primarily transport of ions in response to an external electric field. This actuating mechanism is similar to conductive polymer based actuators. For performance improvement of EAPap, hybrid actuators are tried. The actuators based on cellulose paper attached conducting polypyrrole, polyaniline and single wall carbon nanotube/polyaniline(emeraldine base) have been achieved by Electro chemical deposition and mechanical deposition of the polymers onto cellulose paper.

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Polyaniline계 전도성 고분자의 열안정 특성 (Thermal stability of polyaniline based conductive polymer blend)

  • 백운석;윤호규;서광석
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1998년도 추계학술대회 논문집
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    • pp.215-218
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    • 1998
  • The thermal stability of polyaniline-camphorsulfonic acid(PANI-CSA) film was studied as a function of temperature and time. A decrease in electrical conductivity of PANI-CSA film occurred when PANI-CSA film is subjected to temperature above 60$^{\circ}C$. From the result of thermogravimetry (TG), it was thought that the deterioration in electrical conductivity of PANI-CSA film was due to evaporation of water and residual solvent.

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전해산화에 의한 배금전극상 전도성 폴리아닐린 피막의 생장거동(I) (Growth Behavior of Condutive Polyaniline Film on a Platinum by Electrochemical Oxidation(I))

  • 신성호;이주성
    • 한국표면공학회지
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    • 제21권2호
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    • pp.68-75
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    • 1988
  • To know the growth behavior of Conductive polyaniline file, the anodic oxidation of anilien on a platiunm in aqueous sulfuric acid solution has been studied. Cyclic votammetry and currenttime transisents method used to investigate the anodic oxidation of aniline to polyaniline films on a platinum. The oxidation of aniline is shown to occur in several steps dependent on the potential. it the phase growth resembles the deposition of a metal film.

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