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강훈구 한국연극학회 2022 한국연극학 Vol.1 No.80
예술인들은 박근혜 정부에서 행해졌던 예술지원제도 상의 정치적 검열 및 지원배제 조치가 재발하지 않을까 우려하고 있다. 그러나 예술인들이 진정 대비해야 하는 것은 현행 예술지원제도가 폐지되는 상황이다. 수월성을 기반으로 한 예술지원제도를 전면 폐지하겠다는 방침은 예술지원에서 발생하는 논란을 우회하는 가장 좋은 방법이다. 예술 지원이 소수의 베테랑, 엘리트 예술가에 집중된 현재의 예술계 구도는 해당 조치에 충분한 가능성을 제공한다. 예술계가 먼저 예술지원제도의 대전환을 시작해야 한다. 그것이 바로 예술계의 블랙리스트에 대한 본질적인 대응이다.
강훈구,Youyoung Kim,Taesun Park,박준범,Eisuke Ito,Masahiko Hara,노재근 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.4
The surface structures, adsorption conditions, and thermal desorption behaviors of cyclopentanethiol (CPT)self-assembled monolayers (SAMs) on Au(111) were investigated by scanning tunneling microscopy (STM),X-ray photoelectron spectroscopy (XPS), and thermal desorption spectroscopy (TDS). STM imaging revealed that although the adsorption of CPT on Au(111) at room temperature generates disordered SAMs, CPT molecules at 50 °C formed well-ordered SAMs with a (2√3 × √5)R41o packing structure. XPS measurements showed that CPT SAMs at room temperature were formed via chemical reactions between the sulfur atoms and gold surfaces. TDS measurements showed two dominant TD peaks for the decomposed fragments (C_5H_9^+,m/e = 69) generated via C-S bond cleavage and the parent molecular species (C_5H_9SH^+, m/e = 102) derived from a recombination of the chemisorbed thiolates and hydrogen atoms near 440 K. Interestingly, dimerization of sulfur atoms in n-alkanethiol SAMs usually occurs during thermal desorption and the same reaction did not happen for CPT SAMs, which may be due to the steric hindrance of cyclic rings of the CPT molecules. In this study, we demonstrated that the alicyclic ring of organic thiols strongly affected the surface structure and thermal desorption behavior of SAMs, thus providing a good method for controlling chemical and physical properties of organic thiol SAMs.
강훈구,노재근 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.5
The surface structure and electrochemical behavior of self-assembled monolayers (SAMs) prepared from benzenethiol (BT), cyclohexanethiol (CHT), and cyclopentanethiol (CPT) on Au(111) surface were examined by scanning tunneling microscopy (STM) and cyclic voltammetry (CV) to understand the influence of thiol molecular backbone structure on the formation and reductive desorption behavior of SAMs. STM imaging showed that BT and CPT SAMs on Au(111) surface formed at room temperature were mainly composed of disordered domains, whereas CHT SAMs were composed of well-ordered domains with three orientations. From these STM results, we suggest that molecule-substrate interaction is a key parameter for determining the structural order and disorder of simple aromatic and alicyclic thiol SAMs on Au(111). In addition, the reductive desorption peak potential for BT SAMs with aromatic rings was observed at a less negative potential of –566 mV compared to CHT SAMs (–779 mV) or CPT SAMs (–775 mV) with aliphatic cyclic rings. This reductive desorption behavior for BT SAMs is due to the presence of p-orbitals on the aromatic rings, which promote facile electron transfer from the Au electrode to BT as compared to CHT and CPT. We also confirmed that the reductive desorption behavior for simple alicyclic thiol SAMs such as CHT and CPT SAMs on Au electrodes was not significantly influenced by the degree of structural order.
이남석,강훈구,성시천,노재근 대한화학회 2019 Bulletin of the Korean Chemical Society Vol.40 No.12
STM images showing the phase transition of OT SAMs on Au(111) from the closely packed c(4???2) phase to the loosely packed (6???√3)25° phase.