甲基

Silicone/SiO2 organic-inorganic hybrid sol have been prepared from tetraethyl orthosilicate as inorganic precursor, methyl triethoxysilane and diphenyl dimethoxy silane as organic precursor, the hydrochloric acid and water as catalysts, by sol-gel method through the hydrolysis-polycondensation reaction.

采用溶胶－凝胶法，以正硅酸乙酯为无机相前驱体，甲基三乙氧基硅烷和二甲基二甲氧基硅烷为有机相前驱体，盐酸和水为催化剂，通过水解－缩聚反应制备了有机硅／SiO2有机－无机杂化溶胶。

It is characterized in that: 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine reacts with 1- methylthio - 1- methylamino- 2- nitro ethylene directly in water phase, crystallizing and separating out ranitidine alkali.

其特征在于：它是由2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯直接在水相中反应并结晶析出雷尼替丁碱。

Trifluoromethyl-3-heptadfluoroisopropyl-2-perfluoropentene-4-(N',N'-dimethylamino propyl) imino was prepared by the reaction of hexafluoropropene timer with N,N-dimethyl propanediamine in the molar ratio 1:1.0 at room temperature for 8h, and the structures of VIII were identified by IR and NMR spectra.

以六氟丙烯三聚体与N，N-二甲基丙二胺为原料合成叔胺2-三氟甲基-3-七氟异丙基-2-全氟戊烯-4-(N'，N'-二甲胺丙基)亚胺，利用红外光谱和核磁共振确定其结构，并通过对合成条件的考察得其最佳合成条件：乙醚为溶剂，碳酸钠为缚酸剂，摩尔投料比为1：1.0，在室温下反应8小时。

Dimethylamino)ethyl methacrylate was polymerized using PS-CH_2Cl as macroinitiator and CuCl/ 2,2 '-Bipyridyl as catalyst in toluene to acquire amphiphilic brush-type copolymers of PS-g-PDMAEMA.

再以氯甲基化的聚苯乙烯(PS-CH_2Cl)为大分子引发剂，在CuCl和2，2′-联吡啶(2，2′-Bipyridyl，bpy)存在下，以甲苯为溶剂，进行甲基丙烯酸N，N-二甲胺基乙酯2-(Dimethylaminoethyl methacrylate，DMAEMA的ATRP聚合，得到两亲性的梳状共聚物PS-g-PDMAEMA。

A novel type of amphiphilic tri-block copolymers with both pH and temperature sensitiveness: poly-poly (dimethylamino ethyl methacrylate)-poly (ε-caprolactone)(PEG-PDMAEMA-PCL) was synthesized via sequential oxyanionic polymerization of macro-molecular: PEG, with a hydroxyl at one end, and dimethylamino ethyl methacrylate andε-caprolactone, with the potassium naphthalene as the initiator.

在本文中，报道了一类新型的兼具pH和温度敏感的双亲性嵌段共聚物：聚乙二醇-聚甲基丙烯酸N，N-二甲氨基乙酯-聚己内酯(PEG-PDMAEMA-PCL)及聚甲基丙烯酸N，N-二甲氨基乙酯-聚己内酯(PDMAEMA-PCL)的制备；并利用动态光散射和氢核磁共振光谱(~1H NMR)对该嵌段共聚物的水溶液性质进行研究；在此研究结果的基础上，初步探讨了其在仿生物矿化中的应用。

The polymerization reacts from the inverse emulsion . Selecting white oil as continuous medium , Span60 and TX-10 as the complex emulsifier , AM-01﹑(NH4)2S2O4 and NaHSO3 as new-type complex initiator , the copolymerization of dimethylamino ethyl acrylate methyl chloride/acrylamide was developed . The effects of the concentration of monomer﹑emulsifier and initiator﹑ temperature﹑reaction time and pH on the molecular weight﹑intrinsic viscostity﹑conversion ratio and cation degree of copolymer were studied .

以反相乳液为初始聚合体系，油酸失水山梨醇酯Span60和辛基酚聚氧乙烯醚TX-10构成复配乳化剂，白油为连续介质，AM-01、过硫酸铵和亚硫酸氢钠组成新型复合引发体系，进行丙烯酰胺/（2-甲基丙烯酰氧乙基）三甲基氯化铵的反相准微乳液共聚合，研究了单体浓度、乳化剂、反应温度、反应时间、pH等因素对聚合产品分子量、特性粘数、转化率及阳离子度的影响。

The method comprises following steps: taking diphenol and 3- trifluoromethyl- 4- chloronitrobenzene as raw material, salt precipitating for diphenol and potash, refluxing with water- containing toluene, reacting with 3- trifluoromethyl- 4- chloronitrobenzene and getting dinitro monomer; taking dinitro monomer, ferro powder and HCl as raw material, ethanol and water as disslovant for refluxing and ethanol recrystallization, getting fluorine- containing aromatic diamido monomer.

合成方法是以二酚与3-三氟甲基-4-氯硝基苯作原料，先将二酚与碳酸钾成盐，甲苯带水回流反应，然后与3-三氟甲基-4-氯硝基苯反应制得二硝基单体；再以二硝基单体，铁粉，HCl为原料，乙醇和水做溶剂，回流反应、乙醇重结晶，得到含氟芳香二胺基单体。

In this paper, the host-guest relationship between a general cucurbit [n=7] uril (Q[7]) or a new ellipsoid-host-symmetric tetramethyl-cucurbituril (TMeQ[6]) with hydrochloride salts of 4,4'-dipyridyl (44) or N,N'-dimethyl-4,4'-dipyridyl(dm44) was examined for confirming the interaction between cucurbituril (Q[6]) and these guests.

以七元瓜环(Q[7])和新型椭圆型改性瓜环―对称四甲基取代六元瓜环(TMeQ[6])为主体，4，4'-联吡啶的盐酸盐(44)以及N，N'-二甲基4，4'-联吡啶的盐酸盐(dm44)为客体的主客体相互作用进行了考察。

In order to investigate the mechanism for this reac-tion, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1∶1 or 2∶1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1∶1和2∶1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

In order to investigate the mechanism for this reaction, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1:1 or 2:1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1：1和2：1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？