二酸

With toluene two isocyanogen diethylene glycol dinitrate, the polyester or the polyether dihydroxy alcohol, two methylol propionic acid, the triethylamine, the ethylene diamine and so on are raw materials, uses the prepolymer dispersion method, has prepared a series of anion river character polyurethane emulsion.

用甲苯二异氰酸酯、聚酯或聚醚二元醇、二羟甲基丙酸、三乙胺、乙二胺等为原料，采用预聚物分散法，制备了一系列的阴离子水性聚氨酯乳液。

Based on reviewing of functionalization of saturated carbon by catalytic oxidation with metalloporphyrins and metal phthalocyanines as a mimic of the enzyme cytochrome P-450, two reaction systems of which one was the preparation of 4, 4'-dinitrostilbene-2, 2'-disulfonic acid from 4-nitrotoluene2-sulfonic acid and the other was the preparation of 4, 4'-bis (dimethylamino -diphenyl) phenylmethanol from 4, 4'-bis (dimethylamino-diphenyl) phenyl methane , were specifically studied as carfunctionalization and oxyfunctionalization of saturated carbon.

本文在全面综述金属卟啉和金属酞菁类模拟细胞色素P-450酶催化剂催化氧化饱和碳原子功能化的基础上，选择由4-硝基甲苯-2-磺酸制取4，4'-二硝基二苯乙烯-2，2'-二磺酸和由4，4'-二苯基甲烷制取4，4'-二苯基甲醇两个反应体系进行饱和碳原子碳功能化和氧功能化的具体研究。

The aqueous polyurethane prepolymer was prepared through step-growth polymerization of diphenylmethane diisocyanate with polyester glycol and dimethylol propionic acid, which was then neutralized by triethylamine to form the stable transparent aqueous polyurethane dispersion.

以二苯基甲烷二异氰酸酯、聚酯二醇、二羟甲基丙酸等为原料合成了水性聚氨酯预聚体，用三乙胺中和制备了水性聚氨酯的透明乳液。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本论文主要研究了亚甲基环丙烷类化合物的一些化学反应性能，共由以下六部分组成：1、亚甲基环丙烷类化合物与苯硫氯、苯硒氯及二苯基二硒的反应；2、亚甲基环丙烷类化合物开环产物的偶联反应；3、单芳基取代的亚甲基环丙烷类化合物在钯催化剂作用下的扩环反应；4、金化合物催化磺酰胺对亚甲基环丙烷类化合物的串联开环关环氨氢化反应；5、路易斯酸催化亚甲基环丙烷类化合物与丙酮二羧酸二乙酯在有水存在下的反应；6、醋酸碘苯促进的亚甲基环丙烷类化合物、亚乙烯基环丙烷类化合物及亚甲基环丁烷类化合物与邻苯二甲酰肼的新型1，3-偶极环加成反应。

Based on the study of the adsorption mechnism between the macroporous weak base anion-exchange resins and the aromatic sulfonic acid, a pretreatment method for the wastewater from 4, 4'-diaminostilibene-2, 2'-disulfonic acid manufacturing process, a refractory dye intermediate wastewater, was developed.

在对芳香磺酸化合物吸附机理研究的基础上，开发了大孔弱碱性阴离子交换树脂吸附法处理4，4'-二氨基二苯乙烯-2，2'-二磺酸氧化工序生产废水的新技术，并得到了工业化应用。

Main types of fatty acids found in the oils were normal saturated, mono-branched, multi-branched, cyclopropane, furanoid, normal monounsaturated and polyunsaturated fatty acids.

不饱和脂肪酸含量为73.6%，其中多不饱和脂肪酸含量为25.4%，以C18∶2(4.9%)，C18∶3(3.1%)，C20∶4(1.3%)，C20∶5(二十碳五烯酸， 9.4%)和C22∶6(二十二碳六烯酸， 6.7%)为主。

To observe the effects of EPA and DHA on the proliferation and apoptosis of glomerular mesangial cells induced by lipopolysaccharide.

目的 观察二十碳五烯酸和二十二碳六烯酸对正常及在脂多糖诱导下的肾小球系膜细胞增殖和凋亡的影响。

Inosine -5'- monophosphate (5'-IMP) and guanosine-5'-monophosphate (5'-GMP) in samples were separated successfully using an Inertsil ODS-3 column (250 mm×4.6 mm, 5 μm) when 0.02 mol/L monopotassium phosphate (pH 4.5) was employed as the mobile phase with a flow rate of 1.0 ml/min at 250 nm and 25℃.

采用Inertsil ODS-3色谱柱(250 mm×4.6 mm， 5μm)；以0.02 moL/L磷酸二氢钾溶液(pH 4.5)为流动相，流速1.0 mL/min，柱温25℃，检测波长250 nm，同时分离了样品中5'-鸟苷酸二钠和5'-肌苷酸二钠。

A series of newl naphthalenic sulfonated polyimides were synthesized using 1,4,5,8-naphthalenetetracarboxylic dianhydride, 2,2'-benzidinedisulfonic acid by one-step high temperature polymerization method. The sulfonated degree of SPI-X membranes was controlled through adjusting the molar ratio of BDSA to the non-sulfonated diamines.

采用1，4，5，8-萘四酸二酐、2，2′-联苯二胺双磺酸和APBA为单体，通过高温一步聚合法合成了含有噁唑环的新型磺化聚酰亚胺，通过调节二胺单体的比例控制磺化程度。

Ethyl alcohol, 3-methyl-4-oxo- pentanoic acid, acetic acid butyl ester, 2-methyl-butanoic acid ethyl ester, diethyl phthalate,-2,4-Decadienal were the same volatiles d from the 10 cultivars.

其中共有组6种，为乙醇、3-甲基-4-羰基戊酸、乙酸丁酯、2-甲基丁酸乙酯、邻苯二甲酸二乙酯、-2，4-癸二烯醛。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。