The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

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We devote in the research, development, production and marketing of precious metal compound and related products with reliable quality, such as; potassium gold noncyanide, Rhodium sulphate, potassium tetrabroaurate, Chloroplatinic acid, gold chloride, Ammonium chloropalladate, Ammonium tetrachloropalladate, recycled and refined precious metals etc.

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After the click reaction of the SCL micelles and azide-terminus PNIPAM homopolymer, the novel PNIPAM-functionalized SCL micelles with pH-responsive cores and outer thermosensitive coronas were prepared, which was investigated act as excellent candidate of nanosized drug delivery vehicles. Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

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This paper is studied on a new synthesis method of amino-modified organic silicone micro-emulsion of cationic style by one step with a silane-alkyl coupling,3-(2-aminoethyl)-aminopropyl methyl dimethoxy silane while opening-cyclo polymerization of the octa-methyl cyclo tetra siloxane,thus the optimal manufacturing conditions are determined by comparing test of their properties.

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In this Ph. D. dissertation, reverse microemulsion method was fully used infabricating and modifying polyacrylamide with functional and high-relative moleculeweight. The copolymerization of 2-acrylamide-2-methylpxopanesulfonic acid, fluorescent monomer 4-methoxy-N-(2-N\', N\'-dimethylamino ethyl)naphthalimide alkyl chloride quaternary ammonium salt, fluorescentmonomer 4-(N\'-methyl-1-piperazinylallyl)-N-butyl-naphthalimide chloride quaternaryammonium salt, Cationic monomer dimethylethylammonium bromide and hydrophobical monomer octadecylacrylate with acrylamide and properties of the copolymers werestudied. The interaction between five polymers and Al_2O_3(012) crystal surface have beensimulated by Materials Studio 3.0 program package, binding energies and non-bondinteraction energies and deformation energies have also been acquired.

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Bromoesters can react with diselenide s by metallic tin in THF to give α-selnoesters in moderate togood yields.

本文報道在四氫呋喃中通過金屬錫促進α-溴代酯與二硒醚反應生成α-硒代酯亚洲欧美日韩人人涩涩日日，反應條件溫和日韩无码激情免费网站视频，產(chǎn)率良好

Second, Electroreduction of Carbon Dioxide on Nanocrystalline TiO2-CNT Complex Film Electrode in tetrabutylammonium bromide solution and fixation of Carbon Dioxide to organic compounds.

第二部分納米TiO_2/碳納米管復合膜電極在四丁基溴化胺水溶液中對二氧化碳的電催化還原及電解固定CO_2為有機化合物的研究 1。

In the presence of alkalinity and tetraethyl ammonium bromide, 2,4-dihydroxy benzophenone reacts with allyl glycidyl ether to form an ethylenic derivative of benzophenone, 2-hydroxy-4-(β-hydroxy-γ-allyloxy) propyloxy benzophenone, which can further undergo hydrosilylation with polyhydromethylsiloxane.

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Chapter 2 has analysized the conversly synthetic means of solanesol and designed novelly synthetic routes of solanesol and key intermediate Chapter 3 has summarized the preparation of trans-3-methyl-4-hydroxy (bromo-2-butenyl oxy methyl benzene In chapter 4 ,a novel technology of important intermediate(all trans-8-bromo geranyl acetate),which is suitable for industrial procedure , was found .meanwhile,an another new way has been invented ,of which the key intermediate (all trans-8-hydroxy geranyl acetate) has been produced.

第二部分分析了茄尼醇的逆合成方法，設(shè)計了一條適合于合成茄尼醇的合成路線及其重要中間體的合成路線亚洲色图国产专区。第三部分研究了重要中間體[Trans-3-甲基-4-羥基-2-丁烯基乙醪ǘ嘈园悠担基(芐基，2国产精品一区二区精品视频，3-二氫吡喃基)醚]的合成新方法亚欧美黄色网，找到了一條適合于工業(yè)化生產(chǎn)的制備反式-3-甲基-4-羥基-2-丁烯基芐基醚的新方法。第四部分研究了重要中間體[-3国产草莓视频A区在线观看，7-二甲基-8-羥基-2美女跪下吃J8，6-辛二烯-1-醇乙酸酯、-3欧美一级男女插穴视频，7-二甲基-8-溴-2能看的黄色网站福利，6-辛二烯-1-醇乙酸酯]的合成新方法，找到了一條適合于工業(yè)化生產(chǎn)的制備它們的新方法天天操天天操三级；同時研究了一條制備-3欧美体内she精高潮，7-二甲基-8-羥基-2，6-辛二烯-1-醇乙酸酯的另一新方法网黄网址免费。

Examples of monomers which have on average not less than 3 cross-linking groups per molecule include for example tri, tetra, penta and hexa functional isocyanates, alcohols, amines, epoxys,acrylates, siloxanes and imines.

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