• Bulletin of the Korean Chemical Society
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• 제33권6호
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• pp.2071-2074
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• 2012

• Bulletin of the Korean Chemical Society
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• 제22권10호
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• pp.1141-1144
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• 2001

• Bulletin of the Korean Chemical Society
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• 제35권5호
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• pp.1491-1494
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• 2014

High-crystallinity poly(3-hexylthiophene) (P3HT) thin films were prepared by aging the precursor solutions, prepared using a good solvent, chloroform, at low temperatures prior to spin-casting. Lower solution temperatures significantly improved the molecular ordering in the spin-cast P3HT films and, therefore, the electrical properties of field-effect transistors prepared using these films. Solution cooling enhanced the electrical properties by shifting the P3HT configuration equilibrium away from random coils and toward more ordered aggregates. At room temperature, the P3HT molecules were completely solvated in chloroform and adopted a random coil conformation. Upon cooling, however, the chloroform poorly solvated the P3HT molecules, favoring the formation of ordered P3HT aggregates, which then yielded more highly crystalline molecular ordering in the P3HT thin films produced from the solution.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1993년도 추계학술대회 논문집
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• pp.90-92
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• 1993

PM3 semiempirical calculations ions have performed on the three aromatic heterocyclic polymers. The dipole moment (${\mu}$7), static 1st-orders(${\alpha}$), 2nd-order (${\beta}$), and 3rd-order polarizabilities(${\gamma}$) were investigated to study the nonlinear optical properties of the polythiophene, polyfuran, and polypyrrole systems. As a function of n, ${\alpha}$ and ${\gamma}$ increases much more rapidly for the polythiophene systems than for the polyfuran and Polypyrrole systems due to the pi-electron delocalization.

• 한국전기전자재료학회논문지
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• 제13권9호
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• pp.764-769
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• 2000

The purpose of this study is to research and develop conducting polymer(CP) composite electrode for supercapacitor. Supercapactior cell of CP composite electrode with 1M LiClO$_4$/PC brings out good capacitor performance below 4V. The radius of semicircle of CP composite cell with PAn composite electrode adding 15Wt% SP270(PAnS15) and PT composite electrode adding 50%wt% SP270(PTS50) was absolutely small. The total resistance of supercapacitor cell mainly depended on internal resistance of the electrode. The discharge capacitance of supercapacitor cell with PTS50(+)/PAnS15(-) in 1st and 20th cycles was 38F/g and 28F/g at current density of 1mA/$\textrm{cm}^2$, respectively.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 하계학술대회 논문집
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• pp.487-490
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• 2000

The purpose of this study is to research and develop conducting polymer(CP) composite electrode for supercapacitor. Electrochemical capacitor(supercapacitor) cell of CP composite electrode with 1M LiClO$_4$PC bring out good capacitor performance below 4V. The radius of semicircle of CP composite cell with PAn composite electrode adding l5wt%SP270(PAnS15) and PT composite electrode adding 50wt%SP270 (PTS50) was absolutely small. The total resistance of supercapacitor cell mainly depended on internal resistance of the electrode. The discharge capacitance of supercapacitor cell with PTS50(+)/PAnS15(-) in 1st and 20th cycles was 38F/g and 28F/g at current density of 1mA/cm$^2$. Supercapacitor cell with PTS50(+)/PAnS15(-) showed good capacitance and stability with cycling.

• 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.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2007년도 제32회 학술대회 초록집
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• pp.166-166
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• 2007

• Macromolecular Research
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• 제16권8호
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• pp.749-752
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• 2008

• 공업화학
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• 제9권3호
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• pp.342-347
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• 1998

경량성의 전도성복합수지는 전도성고분자인 폴리피롤과 폴리티오펜이 다공성의 가교폴리스티렌의 내부에 분산되어 전도성네트워크를 형성시킴으로 제조된다. 높은 다공성과 친유성의 특성을 갖는 호스트고분자는 고농축에멀션중합방법을 이용하여 합성하고 전도성복합수지는 이 호스트고분자를 이용하여 이단계 함침방법으로 제조한다. $FeCl_3$을 개시제와 혼입체로 사용하여 제조한 폴리피롤복합수지의 전기전도도는 0.82 S/cm이며, $FeCl_3$-아세토니트릴을 개시제로 사용하여 제조한 폴리티오펜복합수지는 전기전도도가 6.05 S/cm에 이른다. 전도성복합수지의 전기전도도는 사용된 산화제 용매와 초기산화제와 단량체 몰비율에 크게 영향을 받는다. 전자현미경조사에 의하면 전도성고분자가 다공성 호스트고분자 내부벽에 필림을 형성한다. 폴리피롤소재복합수지와 폴리티오펜소재복합수지의 전기차단효율은 2.0 GHz에서 각각 15.2dB와 22.5dB였다. 20K-300K의온도범위에서 저항의 온도의존성에 대한 실험결과에 의하면 전도성복합수지는 반도체특성을 보이고 전기전도기구는 전형적인 VRH모델을 따른다.