• 简要介绍二苯酮基大分子光敏引发剂合成制备、引发聚合机理应用方面研究进展情况。

    This paper discusses, the synthesis, photoinitiation polymerization mechanism and applications of polymer photosensitized initiator containing side chain benzophenone chromophores.

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  • 磺胺嘧啶酮基布洛芬合成制药废水微生物抑制作用,故不能使用生物法对其进行处理

    Containing sulfadiazine and ketoprofen on the synthesis of pharmaceutical wastewater has a stronger effect on treatment of microbes. It is not used to be dealt with by biologic wastewater treatment.

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  • 一部分:3 -- 6 - O -甲红霉素- 9 -取代衍生物合成体外抗菌活性

    The first part: synthesis and in vitro activity of 3-keto-9-o-substituted oxime derivatives of 6-o-methyl erythromycin a.

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  • 通过IRNMR谱图分析,得知该聚合物含有的结构单元以及

    The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.

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  • 低能离子注入2--L-古龙(2-KLG)生产生物学效应注入离子对DNA的损伤效应进行了初步研究。

    The biological effect of 2-keto-L-gulonic acid strains and their DNA implanted by low energy ions have been studied.

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  • 综述了甾体化合物11 -位引入各种化学合成方法,主要包括酮基还原法、上脱卤素法、硼烷双氧水法、过氧化-还原法

    Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.

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  • 各种类型富含某种被称为类黄抗氧化物质,黄体的起防止自由破坏细胞作用

    Both types of tea are abundant in certain antioxidant chemicals called flavonoids, which obstruct the action of cell-damaging free radicals.

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  • 而冷冻干燥疫苗置入微针模子乙烯吡咯烷单体混合室温紫外光混合物聚合

    Freeze-dried vaccine was mixed with the vinyl-pyrrolidone monomer before being placed into microneedle molds and polymerized at room temperature using ultraviolet light.

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  • 冰片氯化镁反应产物二苯冰片甲醇、二苯甲醇氧化产物冰片烯。

    The reaction products of bornyl magnesium chloride with diphenyl ketone are diphenyl bornyl carbinol, diphenyl carbinol and its corresponding oxidation product, bornylene.

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  • 常温常压下,纳米级催化剂苯乙烯二苯甲分别催化加氢活性

    Nanosized nickel based catalysts can be used to carry out the hydrogenation of styrol and benzophenone at normal temperature and pressure.

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  • 本文用自由捕捉esr结合方法系统研究了各种取代苯胺与二光化反应中的活泼自由

    Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.

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  • 对于硫醯亚胺自由反应,则是得到低产率简单产物不是预期烯醇化合物

    In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound.

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  • 本文对的二甲硅双烯醇醚合成反应机理反应条件进行了探讨,在此础上合成四个二甲硅双烯醇醚,较高

    The synthetic mechanism and conditions of dimethylsilyl bis-enol ethers of ketones were studied and four dimethylsilyl his-enol ethers of ketones were synthesized and the yields were high.

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  • 共培养培养中添加乙酰丁香提高转化频率

    It was beneficial to add acetosyringone into cocultivation medium for improving transformation frequency.

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  • 对于吡咯开始生产n -乙烯吡咯1939年路德维希港自1992年以来生产巴斯夫的盖斯马在美国网站

    The starting product for PVP, namely N-vinylpyrrolidone, has been produced since 1939 in Ludwigshafen and since 1992 also at BASF's Geismar site in the United States.

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  • 与亲株相比,菌株完全丧失了醇酶活性能够培养大量积累D核糖

    The mutant had entirely lost transketolase activity and could accumulate a large amount of D? ribose in the culture medium. The amount of D?

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  • 二向色性改性引入磺酸偏光分析表明水溶液中分子自组装致液晶,织构呈带状

    The polarized light analysis of modified indanthrene blue RSN aqueous solution showed that their molecules were self-assembled lyotropic liquid crystal phases with strip textures.

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  • 探讨苯环条件以及查尔合成方法条件。

    The synthesis methods of chalcone and benzene ring alkylation are discussed.

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  • 聚乙烯吡咯烷(pvp),水溶性精细高分子聚合物。

    Polyvinylpyrrolidone (PVP) is a kind of fine polymer obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).

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  • 目的正常大鼠组织浆、亚细胞给药小鼠肝匀浆、血清等为材料研究62341H吡啶HDP氧化作用

    AIM To study anti oxidation of 6 phenylthio 2 ethyl 3 hydroxy 4(1H) pyridinone (HDP) in tissues homogenates, livers subcellular and in serums from mice.

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  • 提出了一合成氟喹诺抗菌剂沙星马沙星的方法

    A new synthetic method for preparing two arylfluoroquinolone antimicrobial agents, difloxacin and temafloxacin, was reported.

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  • 本研究核心利用N-乙烯吡咯烷NVP进行共聚反应,制得目前国内外最新型的组织工程支架材料

    A series of biodegradable crosslinked NVP scaffold materials were prepared by radical polymerization of the biodegradable crosslinking agents and NVP using azoisobutyronitrile (AIBN) as initiator.

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  • 法制得的聚乙烯吡咯烷适用药物食品工业

    The PVP obtained can be applied to the pharmaceutical and food industries.

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  • 反应产生的乙醛有机酸可以培养积累

    The products acetaldehyde, ketones and organic acids accumulate in the culture medium.

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  • 研究了聚合物分子量联剂N-乙烯吡咯与引发剂过氧化苯甲酰的含量最高交联温度固化时间压缩强度压缩量的影响

    The effect of UPPE molecular weight, NVP/UPPE ratio, BPO/UPPE ratio on the crosslinking temperature, setting time, compressive strength and compressive modulus was investigated.

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  • 异丙烯合成工艺进行了改进比较了不同温度下中间体脱水反应收率的影响。

    Improvement of synthesis process of methyl isopropenyl ketone was introduced, and the yields in different temperature was compared.

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  • 目的设计合成1位为52吡啶的吡衍生物抗菌活性进行初步评价。

    AIM to design and synthesize 1 (5 fluoro 2 pyridyl) quinolone derivatives, and to study their in vitro antibacterial activities.

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  • 通过甲酰异长叶烯缩合反应合成出具有香气化合物

    Six types fragrant new compounds were synthesized by the condensation reactions of formylisolongifolene with ketones.

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  • 以硅胶催化剂甲醛可经常压缩合反应合成乙烯

    Atmospheric vapor phase catalytic condensation of formaldehyde with acetone for manufacture of methyl vinyl ketone has been studied.

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  • 以硅胶催化剂甲醛可经常压缩合反应合成乙烯

    Atmospheric vapor phase catalytic condensation of formaldehyde with acetone for manufacture of methyl vinyl ketone has been studied.

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