甲基丙烷

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

Ophenyl phenol,ophenyl phenol sodium salt tetrahydrate,7ADCA,2ethyl phenyl hydrazine hydrochloride,2,3dihydrofuran,7ethyl3(2hydroxy ethyl)indole,methyl ester of etodolac; 1,8diethyl1,3,4,9tetrahydropyrano[3.4b] indole1acetic acid methyl ester,5chloro2methoxy benzoic acid,4(2aminoethyl)benzene sulfonamide,5cyano phthalide,phthalhydrazide,9thioxanthenone,n[(1,4benzodioxane2yl)carboxyl]piperazine HCL,2chloro4amino6,7dimethoxyquinazoline,2chloro benzimidazole,1(4fluorobenzyl)2chlorobenzimidazole,2methylthio4pyrimidone,5amino4imidazole carboxamide HCL,6chloro2hexanone,11oxo6.11hydrodibenzothiepin,6,11dihydrodibenzooxepin11one,10,11dihydrodibenzocyclohepten5one;dibenzosuberone,dibenzo cyclohepten5one;dibenzosuberenone,3,5dihydroxy benzoic acid,3,5dihydroxy benzyl alcohol,2mercapto benzimidazole,3,4dihydroxy benzaldehyde,3,4dihydroxy benzonitrile,2amino5chloro benzonitrile,2(4chlorophenoxy)ethyl chloride,2(4chloro phenoxy)tert,butane,ditrimethylol propane;DTMP,2,2bis(4hydroxyphenyl)butane; bisphenol B,1,1'bis(4hydroxyphenyl)cyclohexane;bisphenol Z,tetrabromobisphenolS,3,5ditertbutyl salicylic acid,3,4,5trihydroxy benzoic acid stearyl ester,1,2,4trimethoxybenzene.

华业公司产品：邻苯基苯酚，邻苯基苯酚钠盐，7氨基3去乙酰氧基头孢烷酸，邻乙基苯肼盐酸盐，2，3二氢呋喃，7乙基色氨醇，依托度酸甲酯，5氯2甲氧基苯甲酸，4(2氨乙基)苯磺酰胺，5氰基苯酞，双酮酞嗪，9噻吨酮，N〔(1，4苯并二恶烷2基)羰基〕哌嗪盐酸盐，2氯4氨基6，7一二甲氧基喹唑啉，2氯苯并咪唑，1(4氟苄基)2氯苯并咪唑，2甲硫基4嘧啶酮，5氨基咪唑4 甲酰胺盐酸盐，6氯2已酮，11氧6.11二氢苯并〔b.c〕虑平，11氧代6，11二氢二苯并氧杂卓，10，11二氢二苯并环庚烯5酮，二苯并环庚烯5酮，3，5二羟基苯甲酸，3，5二羟基苯甲醇，2巯基苯并咪唑，3，4二羟基苯甲醛，3，4二羟基苯腈，2氨基5氯苯腈，2(4氯苯氧基)1氯乙烷，2(4氯苯氧基)叔丁烷，双丙烷，2，2二(4羟基苯基)丁烷；双酚B，1，1'双(4羟基苯基)环己烷；双酚Z，2[3，5二溴4(2，3二溴丙氧基)]苯砜，3，5二叔丁基水杨酸，3，4，5三羟基苯甲酸十八烷基脂，1，2，4三甲基氧基苯。

The invention relates to a silver polyethylene perchloride external anticorrosive coating and the making method thereof, adding polyethylene perchloride resin into mixed solvent of dimethylbenzene and butyl acetate, then adding in epoxy resin, chlorinated paraffin, epoxy chloropropane, polyacrylate copolymer solution, polymethyl alkyl siloxane solution, polyamide wax, and aluminum silver pulp, blending and grinding to make it.

本发明涉及一种银色高氯化聚乙烯外防腐涂料及制造方法，是将高氯化聚乙烯树脂加入二甲苯和醋酸丁酯的混合溶剂中，再加入环氧树脂、氯化石蜡、环氧氯丙烷、聚丙烯酸酯共聚体溶液、聚甲基烷基硅氧烷溶液、聚酰胺蜡、铝银浆经混合、搅拌、研磨制成银色高氯化聚乙烯外防腐涂料，可用于储罐、化工设备、钢架、桥梁、集装箱的外防腐蚀。

In this paper, WAXD was used to investigate a series of liquid crystalline and non liquid crystalline sequential copolyester, which was synthesized from 1,10 decanediol, 2,2 bis(4 hydroxyphenyl) propane and the mesogenic monomer 2 methyl 1,4 phenylene bis(4 chloroformyl) benzoate.

应用广角X射线衍射对2，2－双（4羟基苯基）丙烷，1，10癸二醇与2－甲基－1，4－苯撑双（4氯甲酰）苯甲酸酯的一系列共聚酯进行了研究。

We examined the association between intakes of the heterocyclic amines 2-amino-3,8-dimethylimidazo[4,5,-f]quinoxaline, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine,2-amino-3,4,8-trimethylimidazo[4,5,-f] quinoxaline, and meat-deried mutagenicity and risk of distal colon adenoma using a cooking method questionnaire administered in 1996 in the Health Professionals Follow-up Study cohort.

我们卫生保健跟踪调查组采取烹调方法调查表的形式在1996年调查了摄入杂环胺2－氨基－3，8丙烷[4，5，-f] 喹噁啉，2－氨基－1甲基1－6－苯基亚氨基[4，5-b] 吡啶，2－氨基3，4，8－trimethylimidazo[4，5，-f] 喹噁啉和肉类衍生致突变物与患末端结肠腺瘤危险性的关系。

We examined the association between intakes of the heterocyclic amines 2-amino-3,8-dimethylimidazo[4,5,-f]quinoxaline, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine,2-amino-3,4,8-trimethylimidazo[4,5,-f] quinoxaline, and meat-derived mutagenicity and risk of distal colon adenoma using a cooking method questionnaire administered in 1996 in the Health Professionals Follow-up Study cohort.

我们卫生保健跟踪调查组采取烹调方法调查表的形式在1996年调查了摄入杂环胺2－氨基－3，8丙烷[4，5，-f] 喹噁啉，2－氨基－1甲基1－6－苯基亚氨基[4，5-b] 吡啶，2－氨基3，4，8－trimethylimidazo[4，5，-f] 喹噁啉和肉类衍生致突变物与患末端结肠腺瘤危险性的关系。

Within this study, we found some interesting results, for example, the type of ring opening mode of methylene cyclopropyl ketones was changed from distal to proximal under the catalysis of palladium with the addition of two equivalents of sodium iodide.

我们发现了一个非常有趣的现象：亚甲基环丙烷基酮的开环方式可以得到有效的调控：在没有外加卤离子的情况下，开环方式为distal断裂，从而得到了4—氢吡喃化合物，而在两当量的碘化钠的存在下却发生了proximal断裂，从而能够得到2，4—双取代的呋喃。

In this paper, varied factors which influenced the synthesis of epoxypropyl trimethyl ammonium chloride by the reaction of epichlorlhydrin with trimethylamine were studied.

研究了由环氧氮丙烷与三甲胺反应合成环氧丙基三甲基氮化铵沥青乳化剂中间体的各种影响因素。

Chloro-2-hydroxypropyl trimethylammonium chloride was synthesized by using trimethylamine hydrochloride and epichlorohydrin as the raw materials and anhydrous as solvent.

以无水乙醇作溶剂、三甲胺盐酸盐和环氧氯丙烷为原料合成了3-氯-2-羟丙基三甲基氯化铵，探索出最佳合成条件为：n∶n为0.95∶1，反应温度为40~50℃，反应时间为30m in，所得产品质量分数大于98%，收率达90%。

To study the relationship between the hydrophobic "tail" structure and thecharacterizations of Gemini surfactants, a new gemini surfactant CsH2s-α,ω-bis(dehydroabietylhydroxypropylteteramethylethylammonium Chloride),here s=2, wassynthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The impact factorsin the two steps are discussed.

为研究gemini表面活性剂中疏水&尾巴&结构对性质的影响，本论文以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧-2-羟丙基氯，再与四甲基乙二胺反应，得到一种以脱氢松香酰基为疏水链&尾巴&的对称gemini型双季铵盐阳离子表面活性剂：二氯化-N，N′-二(3-脱氢松香酰氧-2-羟丙基)四甲基乙二胺。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。