http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
물-에탄올 혼합용매에서 Co(Ⅱ)-THPP(THPP: tetrakis-(ortho-hydroxy)phenylporphyrin) 착화합물 생성반응
朴裕哲,孫景千 慶北大學校 自然科學大學 1987 自然科學論文集 Vol.5 No.-
5, 10, 15, 20-tetrakis(ortho-hydroxy)phenylporphyrin(THPP) was synthesized by refluxation of (ortho-hydroxy)benzaldehyde with pyrrol in propionic acid. The protonation constants(K^H) of THPP were studied by spectrophotometric method at λ=540nm. From the results of this experiment, it showed that THPP exists in three ionic speces, THPPH_3^+, THPPH_2 and THPPH^- in pH=2∼11. The values of the protonation constants were THPPH^-+H^+??THPPH_2 ; K_2^H=3.421×10^5 THPPH_2+H^+??THPPH_3 ; K_3^H=1.887×10^9 The rate constants of the complex formation reaction of Co(Ⅱ) with THPP were studied in ionic strength of 0.1M NaCIO_4 at pH=3.5. The rate constants(sec^-1) were 1.440×10^-4, 1.380×10^-3, 5.400×10^3 and 1.220×10^-2 at T=25, 30, 35 and 40℃, respectively. The activation parameters, ΔH^≠ and ΔS^≠ were 53 kcal·mol^-1 and 102cal·mol^-1·deg^-1, respectively.
남수용 ( Su Yong Nam ),김상진 ( Sang Jin Kim ),손경천 ( Kyoung Cheon Son ),박창원 ( Chang Won Park ) 한국화상학회 2010 한국화상학회지 Vol.16 No.4
그라비어 오프셋 인쇄 공법을 이용하여 미세 패턴 전극 Paste를 제작하였고, 그 물성을 검토하였다. 전도성 필러로써 Flake 형태의 Ag 파우더를 크기별로 비교 검토하였고, 유기 바인더로써 에폭시 수지, 아크릴 수지 등을 비교 검토한 결과, 에폭시 수지 고형분 8%를 첨가하고 2 μm의 Ag 파우더가 기재와의 접착성, 전도성, 내구성에서 가장 우수함을 알 수 있었다. This experimantation was processed by producing fine pattern electrode Paste and tested the properties with using gravure off-set process. The experiment followed these 2 steps. First, as a conductive filler, The various sized Flake typed Ag powder has reviewed and compared. Secondly, as organic binder, the experimentor Compared epoxy resins, acrylic resins and so on.As the result, Addition of 8% solids epoxy resin and adhesive with 2 μm the listing of the Ag powder,conductive, it was found that the most excellent in durability.