Abstract:
본발명에의하면, 석유자원유래의경화성소재를대체할수 있는바이오매스유래의신규퓨란계화합물을기본골격으로하는친환경의차세대경화성화합물및 이를포함하는조성물을제공할수 있다. 또한, 본발명에의하면, 종래의라디칼형경화소재와비교하여, 경화시에발생하는수축률이적은경화소재를얻을수 있으며, 이러한신규경화소재에적용되는화합물을우수한효율및 경제적합성경로를통해제조할수 있다.
Abstract:
PURPOSE: A method for preparing 5-hydroxymethyl furfural(HMF) is provided to easily isolate and purify metal catalyst after HMF conversion. CONSTITUTION: A method for preparing 5-hydroxymethyl furfural comprises: a step of mixing fructose and irregular metal catalyst in an organic solvent; a step of heating the mixture and stirring. The irregular metal catalyst is denoted by chemical formula I and contains imidazole ligand of solid phase. The heating temperature during the reaction is 50-130°C.
Abstract:
PURPOSE: A salting-out crystallization method is provided to reduce production cost and energy for reactive black 8 and to maximize the production yield of reactive black 8. CONSTITUTION: A salting-out crystallization method for producing reactive black 8 comprises the steps of: bonding trichlorotriazine and chromophore of the chemical formula 1 to prepare a colorant intermediate; adding NH4OH to a pigment intermediate to prepare a dye synthetic fluid in which reactive black 8 is included in 20~25 weight%; adding salt of 10~15 weight% to the dye synthetic fluid to prepare a mixed solution; and filtering reactive black 8 extracted in the mixed solution.
Abstract:
본 발명은 콜로이달 나노 입자를 이용한 바이오 필름 형성 방지용 기판의 제조방법, 이로부터 제조된 기판 및 상기 기판을 포함하는 수질 검사 센서에 관한 것으로서, 보다 상세하게는 콜로이달 나노 입자를 기판 상에 배열한 후 상기 기판 상부에 홀 및 다공성 구조물을 형성시켜 바이오 필름 형성 방지용 기판을 제조하는 방법, 상기 방법을 이용하여 제조된, 기판, 기판 상부에 형성된 다수의 홀 및 상기 기판 상부 전면 및 상기 홀에 형성되는 다공성 구조물을 포함하는 바이오 필름 형성 방지용 기판, 및 상기 기판을 포함하는 수질 검사 센서에 관한 것이다.
Abstract:
PURPOSE: A method for screening a large amount of Aspergillus terreus with excellent itaconic acid productivity using a microtiter culture system is provided to quickly select mutant strains with high productivity and to reduce a screening time. CONSTITUTION: A method for screening a strain with excellent itaconic acid productivity comprises: a step of inoculating 10-20%(v/v) of Aspergillus terreus mutant strain into a microtiter plate(MTP) containing a growth medium and culturing at 28-40 deg. C and 200-250 rpm for 2-4 days; and a step of inoculating 10-20%(v/v) of the cultured Aspergillus terreus mutant strain in the microtiter plate and culturing at 28-40 deg. C and 200-270 rpm for 3-5 days. The Aspergillus terreus is induced by treating with NTG(N-methly-N'-nitro-N-nitrosoguanidine). The growth medium contains 50-60 g/L of glucose, 3-7 g/L of a yeast extract, 1-5 g/L of NH4NO3, 1-3 g/L of MgSO, and 0.01-0.04 g/L of KH2PO4. [Reference numerals] (AA) MTP cultured strain number; (BB) Temperature(°C); (CC) Inoculated amount(%); (DD) Growth culture stirring speed(rpm); (EE) Production culture stirring speed(rpm); (FF) Culture period(days); (GG) Working volume(ml); (HH) 12 well MTP; (II) 24 well MTP