• Bulletin of the Korean Chemical Society
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• 제19권9호
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• pp.916-917
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• 1998

• Bulletin of the Korean Chemical Society
• /
• 제15권11호
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• pp.1019-1021
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• 1994

• Bulletin of the Korean Chemical Society
• /
• 제8권5호
• /
• pp.435-436
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• 1987

• Bulletin of the Korean Chemical Society
• /
• 제16권5호
• /
• pp.464-466
• /
• 1995

• Bulletin of the Korean Chemical Society
• /
• 제17권5호
• /
• pp.485-487
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• 1996

• Bulletin of the Korean Chemical Society
• /
• 제15권3호
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• pp.191-192
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• 1994

• 생약학회지
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• 제48권1호
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• pp.46-50
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• 2017

This study was conducted to investigate the antioxidative activities and tyrosinase inhibition effects of fractions from the distilled water extract of Inonotus obliquus. Moreover, GC-MS based analysis with trimethylsilyl (TMS) derivatization was carried out for active compound in the extract of I. obliquus. In DPPH radical scavenging ability, $SC_{50}$ values of the ethyl acetate fraction was 0.393 mg/ml as a result of the most effective than other fractions. Meanwhile, aqueous fraction showed higher effect in tyrosinase inhibitoty activity. In GC-MS based analysis with TMS derivatization, 7 compounds including syringic acid, vanillic acid and protocatechuic acid were observed in ethyl acetate fraction, and oxalic acid is the main compound in aqueous fraction. As a result, it was confirmed that oxalic acid in aqueous fraction from the distilled water extract of I. obliquus was a compound showing tyrosinase inhibition effect.

• 대한화학회지
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• 제21권4호
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• pp.270-275
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• 1977

Modulated light signal과 trimethylsilyl 유리기의 전자상자성 공명 signal과의 phase shift를 측정함으로써 t-butoxy 유리기와 trimethylsilane의 절대 반응속도 상수는 $-50^{\circ}C$에서 $3{\times}10^{-2}M^{-1}{\cdot}sec^{-1}$으로 얻을 수 있었다.

• 대한화학회지
• /
• 제47권3호
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• pp.229-236
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• 2003

Cyclobutenedions을 lithium trimethylsilylacetylene과 반응시키고 물로 반응을 정지시키면 butenolides가 생성된다. 이 색다른 반응을 위해 allene을 intermediate로 하는 기전을 제안하였다. 이는 trimethylsilyl group이 너무 크기 때문에 보통의 diradical intermediate는 형성이 어렵고, allene이 ${\alpha}$-silyl group에 의해 안정화되기 때문이라고 사료된다.

• Journal of Electrochemical Science and Technology
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• 제8권2호
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• pp.162-168
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• 2017

$LiNi_xCo_yMn_zO_2$ cathode materials have been the focus of much attention because of their high specific capacity. However, because of the poor interfacial stability between cathodes and electrolytes, the cycling performance of these materials fades rapidly, especially at high temperatures. In the present paper, we propose the use of tris(trimethylsilyl) phosphate (TMSPO), which contains phosphate and silyl functional groups, as a functional additive in electrolytes. The addition of TMSPO resulted in the formation of cathode electrolyte interphase (CEI) layers on the surfaces of the cathodes and effectively suppressed electrolyte decomposition reactions, even at high temperatures. As a result, cells cycled with TMSPO exhibited remarkable capacity, which remained after 50 cycles (82.0%), compared to cells cycled without TMSPO (64.6%).