Results 31 to 40 of about 29,309 (59)
, 2016 We present electron spin resonance (ESR) experiments that describe the interaction of β-cyclodextrin (β-CD) with spin adducts of three spin traps: 5,5-dimethyl-1-pyrroline N-oxide (DMPO), N-tert-butyl-α-phenylnitrone (PBN), and 2-methyl-2-nitrosopropane (
Shulamith Schlick (1659718) +1 more
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, 2009 一种制备2，6-二叔丁基萘(DTBN)的方法。本发明中采用叔丁基为取代基团进行萘择形烷基化反应，得到2，6-DTBN组分含量较高的混合液，该混合液可以通过低级醇重结晶方法进行分离提纯，获得高纯度的 2，6-DTBN结晶。该方法克服了采用小体积取代基团如甲基、乙基、异丙基等进行萘择形烷基化反应时，二烷基萘(DAN)选择性差，2，6-/2，7-DAN 低，而且目的产物2，6-DAN分离困难的问题。在草酸络合脱铝改性的Y 型沸石分子筛催化剂上，萘转化率可达到70摩尔％，2，6-/2，7-DTBN比接近9.0 ...
刘中民, 张新志, 王莹利, 许 磊
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, 2008 HY zeolite was modified by chemical liquid deposition with i-C(4)H(9)Si(OC(2)H(5))(3) and a hydrothermal treatment. The samples were characterized by X-ray diffraction. N(2) adsorption, and pulse mass analysis to investigate the influence of modification
Liu Zhongmin +4 more
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, 2015 Steric interaction of reagents with nanospace of zeolites was studied in alkylation: isopropylation, sec-butylation, and tert-butylation of naphthalene (NP) over several large-pore zeolites to elucidate the mechanism of shape-selective catalysis ...
Vinu, Ajayan, Sugi, Yoshihiro
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Manufacturing facility for nylon-6,6 [PDF]
, 2017 The purpose of this project is to evaluate the feasibility of constructing a nylon-6,6 plant from grassroots in Calvert City, Kentucky. While designing, evaluating, and optimizing the production process of nylon-6,6, there were several conclusions that ...
Gade, Noah +3 more
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Synthesis of 6,6'-methylenebisquinazolinones and 7,7′-methylenebis-1,4-benzodiazepine- 2,5-diones
, 2002 2405-2409New C-C linked bisquinazolinones, 6,6'-methylenebis-2-aryl-3-methyl-1,2,3,4-tetrahydroquinazolin-4(3H)-one 4, 6,6'-methylenebis-2-alkyl-3-methyl-3,4-dihydroquinazoli n-4(3H)-one 6, 6,6'-methylenebis-4-oxo-2-thio-3-aryl-1 ,2,3,4-tetrahydro ...
Reddy, P Pratap +5 more
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, 2015 Two multinuclear complexes synthesized from Cu(NO3)2 and 6,6′-dihydroxybipyridine (dhbp) exhibit bridging nitrate and hydroxide ligands. The dinuclear complex (6,6′-dihydroxybipyridine-2κ2N,N′)[μ-6-(6-hydroxypyridin-2-yl)pyridin-2-olato-1:2κ3N,N′:O2](μ ...
Matthias Zeller +5 more
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, 1987 Oxidation of cis-[RuII(6,6′-Cl2bpy) 2(OH2)2]2+ with CeIV gave cis-[RuVI(6,6′-Cl2bpy)2O 2]2+, isolated as the diamagnetic ClO4 - salt, which rapidly oxidizes Cl- (to Cl2) and a wide variety of organic substrates (tetrahydrofuran to butyrolactone and ...
Che, CM, Leung, WH
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, 2017 In this study, the production of weight ratios of 1, 3 and 5 % multi-walled carbon nanotubes (MWCNT) reinforced / unreinforced Nylon 6,6 (N-6,6) nanofiber mats was carried out by electro spun method.
Fırat Durmuş +3 more
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