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Plasma Polymerized Styrene for Gate Insulator Application to Pentacene-capacitor (유기박막트랜지스터 응용을 위해 플라즈마 중합된 Styrene 게이트 절연박막)

Hwang, M.H.;Son, Y.D.;Woo, I.S.;Basana, B.;Lim, J.S.;Shin, P.K.
- Journal of the Korean Vacuum Society
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- v.20 no.5
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- pp.327-332
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- 2011
Plasma polymerized styrene (ppS) thin films were prepared on ITO coated glass substrates for a MIM (metal-insulator-metal) structure with thermally evaporated Au thin film as metal contact. Also the ppS thin films were applied as organic insulator to a MIS (metal-insulatorsemiconductor) device with thermally evaporated pentacene thin film as organic semiconductor layer. After the I-V and C-V measurements with MIM and MIS structures, the ppS revealed relatively higher dielectric constant of k=3.7 than those of the conventional poly styrene and very low leakage current density of $1{\times}10^{-8}Acm^{-2}$ at electric field strength of $1MVcm^{-1}$. The MIS structure with the ppS dielectric layer showed negligible hysteresis in C-V characteristics. It would be therefore expected that the proposed ppS could be applied as a promising dielectric/insulator to organic thin film transistors, organic memory devices, and flexible organic electronic devices.
https://doi.org/10.5757/JKVS.2011.20.5.327 인용 PDF KSCI

Analysis of Styrene Dimer and Trimer in Cup Noodle Containers (컵라면 용기중의 스티렌다이머와 트리머의 분석)

Lee, Kwang-Ho;Jang, Young-Mi;Kwak, In-Shin;Yoo, Seung-Seok;Kim, Ki-Myeong;Choi, Byung-Hee;Lee, Chul-Won
- Korean Journal of Food Science and Technology
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- v.31 no.4
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- pp.931-937
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- 1999
Styrene dimers and trimers from polystyrene cup noodle containers were analyzed by GC and GC/MS extracted with various simulants. For the quantitation of styrene dimers and trimers, 1,3-diphenylpropane (DP) and benzyln-butyl phthalate (BBP) were chosen as the standards. The results showed that the average of the styrene dimers in the containers was 603 ppm, and that of trimers was 5731 ppm. Four styrene dimers, including 1,2-diphenyl-cyclobutane, were identified as well as seven trimers such as 2,4,6-triphenyl-l-hexene. The migration of the styrene dimers and trimers, from the cup noodle containers of polystyrene into foods, was conducted using simulants including boiling water as well as soybean oil and n-heptane. In addition to, the analysis of each migrated styrene was also performed filled with boiling water into noodle and soup after certain time (5, 10, 20, 30 min). The results showed that the migration of styrene dimers and trimers from cup noodle containers was not detected in the case of using boiled water or soybean oil as a simulant, while styrene dimers and trimers were detected 1.18 ppm and 14.21 ppm, respectively, when heptane was adopted as a simulant. In the case of filling with boiled water into noodle and soup, both styrenes were not detected at 5 min and 10 min, however, some samples standing for 20 min released styrene dimers and trimers as much as 0.009 ppm, and 0.019 ppm for 30 min.
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