http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Optimization of Aniline Biopolymerization Reaction Conditions By Response Surface Methodology (RSM)
Adnan Aldemir,Emre Birhanlı,Nahit Aktaş,Özfer Yeşilada 보안공학연구지원센터 2014 International Journal of Bio-Science and Bio-Techn Vol.6 No.6
Response Surface Methodology(RSM) was applied to enzymatic polymerization of aniline, which was conducted in a closed system containing sodium acetate buffer and presence of poly(sodium 4-styrene sulfonate)(SPS) polyelectrolyte as a template with laccase enzyme to produce water soluble polyaniline. Laccase enzyme used as catalyst was isolated from Trametes versicolor (ATCC 200801). The enzymatic polymerization rate of aniline based on measurements of initial dissolved oxygen (DO) consumption rate in the closed system, was optimized by the application of RSM. The independent variables, which had been found the most effective variables on the initial DO consumption rate by screening experiments, were determined as monomer concentration, medium temperature and medium pH. A quadratic model was developed through RSM in terms of related independent variables to describe the initial DO consumption rate as the response. Based on statistic analysis, optimum reaction conditions for the maximum initial DO consumption rate determined 42.50 mM, 39.34 °C and 5.45 as monomer concentration, medium temperature and medium pH, respectively.
Nurettin Sahiner,Alper O. Yasar,Nahit Aktas 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.23 No.-
Poly(4-vinyl pyridine)-silica (p(4-VP)-silica) composites were synthesized via micro emulsion polymerization, and the capsule of p(4-vinyl pyridine), as cap-p(4-VP), was prepared by removing the core silica from p(4-VP)-silica composites by HF treatment. Dicationic particles in the form of cappoly( 4-vinyl pyridine)++-1,4-butane (cap-p(4-VP)++-C4), capsule-poly(4-vinyl pyridine)++-1,6-hexane (cap-p(4-VP)++-C6), and capsule-poly(4-vinyl pyridine)++-1,8-octane (cap-p(4-VP)++-C8) were prepared by modifying cap-p(4-VP) particles with corresponding dibromo alkanes. Then, polymer–metal composites were also prepared from cap-p(4-VP) and dicationic cap-p(4-VP) particles by loading CoCl2 from ethanol and the obtained composites were used in H2 generation from hydrolysis of NaBH4, and The Ea for the composite catalyst was calculated as 56.53 kJ/mol.