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고분자에 결합된 금속-프탈로시아닌의 과산화수소수 분해반응에 대한 촉매활성
김공수,전용철,이영우,이상호,KimKong Soo 김공수,Yong Chul Chun,Young Woo Lee,Sang Ho Lee 대한화학회 1989 대한화학회지 Vol.33 No.6
Metal-4,4',4",4"'-tetraaminophthalocyanine [Mt-$PcNH_2$, Mt = Fe(III), Co(II), Ni(II), Cu(II)] 및 Mt-$PcNH_2$가 styrene-methacrylic acid 공중합체(STMA)에 고정화된 Mt-PcSTMA를 촉매로 사용한 불균일 수용액계에서 과산화수소의 분해반응에 대한 촉매활성에 대하여 실험하였다. 이 촉매들은 효소반응과 비슷한 촉매활성을 나타내었고, Fe(III)-$PcNH_2$이 공중합체에 결합되어 고정화된 Fe(III)-PcSTMA가 가장 촉매활성이 우수하였다. 분해반응율은 높은 pH 범위에서 증가하였으며, $CN^-,\;CNS^-,\;{C_2O_4}^{-2},\;I^-$ 등의 공존 음이온의 영향을 받았다. 또한, 반응속도론적인 고찰을 통하여 열역학적 특성값을 구한 결과로부터 촉매반응이 Michaelis-Menten형의 반응기구로 진행됨을 알 수 있었다. The decomposition reaction of hydrogen peroxide was carried out by using metal-4,4',4",4"'-tetraaminophthalocyanine [Mt-$PcNH_2$, Mt = Fe(III), Co(II)] supported on poly (styrene-co-methacrylic acid), in heterogeneous aqueous system. These catalysts showed a catalse-like activity and Fe(III)-$PcNH_2$ supported on the copolymer was particularly effective for the decomposition of hydrogen peroxide. It was found that the rate of decomposition increased smoothly in the higher pH region and catalytic reaction was interfered by adding $CN^-,\;CNS^-,\;{C_2O_4}^{-2},\;I^-$ ions. The kinetics of the catalytic reaction was also investigated and the reaction proceeds according to the Michaelis-Menten type mechanism.
Methylene-bis-salicylaldehyde 誘導體를 基礎로한 高分子schiff鹽基의 金屬킬레이트에 關한 硏究
김공수,孟琦錫 충남대학교 1977 工業技術開發硏究所論文集 Vol.4 No.2
Several derivatives of methylene-bis-salicyladehyde were prepared by treating salicyladhyde and nitrosalicylaldehyde with trioxane in presence of sulfuric acid catalyst in acetic acid media. These methylene-bis-salicylaldehyde derivatives were converted to polymeric schiff bases with molecular weight of about 1×10^4∼1.2×10^4 by polycondensation with diamines, ethylenediamine, hexamethylenediamine, p-phenylenediamine and m-phenylenediamine in tetrahydrofuran-aceticacid media. The divalent metal, Cu(Ⅱ), Zn(Ⅱ), Fe(Ⅱ), Co(Ⅱ) and Ni(Ⅱ) chelates of polymeric schiff bases have been prepared, and their thermal stability were also studied. 1. In the preparation of methylene-bis-salicylaldehyde derivatives were also found the optimum reaction condition, and the yield of dialdehyde was related to the amount of sulfuric acid catalyst used, and a low sulfuric acid concentration helped the ratio of reactant favorable for the preparation of methylene-bis-salicylaldehyde derivatives. 2. It was evident that the electron withdrawing substituent in nitrosalicylaldehyde accerelated the rate of reaction, and in the reaction with trioxane of p-nitrosalicylaldehyde proceeded rather rapid than that of o-nitrosalicylaldehyde under the same reaction condition. 3. These metal chelates of polymeric schiff bases exhibited the maximum absorption in the 380mm∼525mm region. 3. The metal chlates of polymeric schiff bases prepared from methylene-bis-salicylaldehyde derivatives with p-, and m-phenydenediamine showed higher thermal stability and decomposed in air over 300℃. 5. The thermal stability increased in the order Co(Ⅱ), Cu(Ⅱ), Fe(Ⅱ), Ni(Ⅱ), to Zn(Ⅱ) chelate of poly(3,3'-methylene-5,5-dinitro-N,N'-bis-salicylaldehyde)-p-phenylenediimine, and in the order Co(Ⅱ), Cu(Ⅱ), Ni(Ⅱ), Zn(Ⅱ) to Fe(Ⅱ) chelate of poly (5,5'-methylene-3,3'-dinitro-N, N'-bis-salicylaldehyde)-p-phenylenediimine when heated in the open air at 250℃ for periods up to 3 hrs.
김공수 최신의학사 1975 最新醫學 Vol.18 No.3
The present report is the result in the management of 72 patients with traumatic hemothorax seen in the department of Thoracic Surgery, Chunnam University hospital from 1965 to August 1972 and Jeonbug Provincial Medical Center from 1973 to November 1974. Penetrating injuries were 48cases and non-penetraing injuries were 24 cases. Among 53 patients received thoracentesis or intercostal tube drainage for removal of hemothorax, elemination of hemothorax obtained 33 cases and the other 20 cases who had continuous bleeding or were unable to remove bolod clots, required thoracotomy. 19 patients who needed immediate thoracotomy or thoraco-abdominal operation had also intercostal tube drainage for prevention from the development of tension pneumothorax during the induction of anesthesia. Indications of thoracotomy in 39 patients were as follow; contineuous bleeding 10 cases, removal of blood clots and decortication 5 cases, suspected concomitant thoracic and abdominal organ injuries 13 cases, multiple rib fracture 5 cases, cardiac injuries 4 cases, foreign body in the thoracic cavity I cases and lung destruction with chest wall defect 1 case. Two patients died, and one had multiple stab wounds in both chest and abdomen expired due to postoperative renal and cardiac failure; the other who sustained chest injuries during a traffic accident developeda wet lung syndrome. He expired due to pulmonary insufficiency and cardiac failure.