氮氧自由基

  • 网络nitroxide;nmp
氮氧自由基氮氧自由基
  1. 二叔丁基氮氧自由基对AN,MA和MMA的高效阻聚作用

    High inhibition effect of di - tert - butyl nitroxide on acrylonitrile , methyl acrylate and methyl methacrylate

  2. 鬼臼酰乙基肼和鬼臼酰肼哌啶腙氮氧自由基(GPI)对小鼠移植性肿瘤作用的实验观察

    Podophyllic Acid Ethyl Hydrazide and Podophyllic Acid Piperidyl Hydrazone Nitroxide Radical on the Transplanted Tumours in Mice

  3. 受阻胺光稳定剂在~(60)Coγ射线辐照下直接生成氮氧自由基的研究

    Nitroxyl free radicals formed from hindered amine light stabilizers under ~ ( 60 ) Co γ - ray irradiation

  4. 鬼臼酰肼哌啶腙氮氧自由基和鬼臼乙叉甙对体外培养癌细胞增殖、有丝分裂指数和DNA合成的影响

    Effects of podophyllic acid piperidyl hydr-azone nitroxide radical on the proliferation , mitotic index and DNA synthesis of some cancer cells in vitro

  5. 氮氧自由基化合物对L7712细胞dnarna和蛋白质合成的抑制作用

    Inhibition of nitroxy radical compounds on the synthesis of dna , RNA and protein of leukemia 7712 cells in vitro

  6. 通过氮氧自由基与维生素C的反应也可制备还原产物哌啶羟胺。

    In order to examine this reaction , an alternative route to prepare the piperidine hydroxylamines was carried out via the reactions of the nitroxides with vitamin C .

  7. 含稳态氮氧自由基的光稳定剂对PE/EVA薄膜老化性能的影响

    Effect of Light Stabilizer Containing Stable Nitroxyl Oxides of Free Radical on Light Aging-Resistance of PE / EVA Films

  8. 本文研究不同PH和去氧对数种哌啶系氮氧自由基在溶液中的ESR波谱的影响。

    Effects of different PH 's and deoxygenation were studied on ESR spectra of several piperidine nitroxyl radicals in solutions .

  9. 四种哌啶系氮氧自由基的ESR特性研究Ⅲ.pH效应和去氧效应

    Studies on the ESR characteristics of four piperidine nitroxyl radicals . ⅲ . pH effects and deoxygenation effects

  10. 合成了含稳态氮氧自由基的光稳定剂,其结构通过ESR、元素分析表征,考察了其热稳定性。

    An light stabilizer containing stable nitroxyl oxides of free radical was synthesized and characterized using ESR and element analysis .

  11. 双-全氟烷基氮氧自由基从取代苯甲醛的攫氢反应&用EPR方法建立取代基自旋离域参数σ的新尝试

    H-Abstraction from p-Substituted Benzaldehydes by Bis-perfluoroalkyl Nitroxides ── A New Attempt for Establishing Substituent Constants of Spin Delocalization σ by EPR Method

  12. 本文研究了五种哌啶类稳定氮氧自由基在九种极性不同的溶剂中EPR谱特性。

    In this paper the behaviour of five title nitroxides in nine solvents with different polarity has been studied by EPR spectrometry .

  13. 本文应用UV法研究了哌啶氮氧自由基与卤代甲烷所形成CCT络合物及其光诱导的电子转移反应。

    The contact Charge transfer ( CCT ) complexes formed from piperidine nitroxides and halomethanes and their photo-induced electron transfer reactions were studied by UV absorption spectrometry .

  14. 本文首次合成和使用自旋标记的血卟啉氮氧自由基,研究了人参皂甙对HPD光敏作用的影响。

    The HPD nitroxide free radical was first synthesized and used to study the influence of ginsenoside on the photosensitization of HPD .

  15. 采用2-巯基苯并噻唑(2-Mercaptobenzothiazole)(MBT)为引发剂,在2,2,6,6-四甲基哌啶氮氧自由基(TEMPO)存在下,研究了苯乙烯的氮氧稳定自由基聚合。

    2-mercaptobenzothiazole ( MET ) was used as initiator for the stable free radical polymerization of styrene in the presence of TEMPO .

  16. 还讨论了HALS在γ射线辐照下生成氮氧自由基的机理。

    Mechanisms of the nitroxyl free radical forma - tion from the γ - ray irradiated HALSs were was discussed .

  17. 本文首次制备了胰岛素氮氧自由基,研究了胰岛素探针与其受体结合过程中ESR波谱参数的动力学变化。

    The insulin nitroxide free radical was first prepared and used to study the kinetic changes of the spectral parameters in the process of combination between the insulit : probe and its receptor .

  18. 本文通过原子转移自由基(ATRP)和氮氧自由基可控聚合(NMP)活性聚合方法有效地控制聚合物分子链结构,合成了一系列具有功能性侧基的活性嵌段共聚物和星形聚合物。

    Atom transfer radical polymerization ( ATRP ) and nitroxide-mediated polymerization ( NMP ) were employed to control the macromolecular chain structure efficiently .

  19. 结论:氮氧自由基引入GP中,使其衍生物抗氧化作用大大增强,必需活性基因为NO基和NOH基。

    CONCLUSION : Introduction of nitroxyl radical moieties into GP generated potent derivatives with antioxidative activity . The essential antioxidation active groups of spin labeled derivative of GP are NO or NOH group in nitroxyl radical moieties .

  20. 方法:自旋探针咪唑类氮氧自由基(IN)、血红蛋白(Hb)溶液和N-甲基-D-葡糖胺二硫代甲酸铁[(MGD)2-Fe2+]捕集生物体内外的NO自由基。

    Methods Comparing the spin trapping function in vitro and in vivo of some spin probes , such as imidazole analogs nitroxide radicals ( IN ), Hemoglobin ( Hb ), N-methyl-D-glucamine dithiocarbamate and reduced iron ( MGD ) 2-Fe 2 + ) .

  21. 一种长链结构稳态氮氧自由基的合成

    Synthesis of a Stable Free Radical of Nitroxyl Oxides with Long-train

  22. 植物生长调节剂氮氧自由基衍生物的合成

    Synthesis of derivatives containing plant growth regulator moiety and nitroxyl radical moiety

  23. 氮氧自由基&过渡金属配合物的结构和磁性研究

    Structures and Magnetic Research of Nitroxide Radicals-Transition Metal Coordination Complexes

  24. 含氮氧自由基分子非线性光学性质的计算研究

    The Calculated Study on Nonlinear Optical Properties of Nitrogen-oxide Radical

  25. 氮氧自由基光阻聚剂的研究

    A study on modern light retarder & nitroxyl oxides of free radical

  26. 三种受阻胺氮氧自由基光稳定剂的合成工艺研究

    Synthesis of three hindered amine N - oxyl light stabilizers

  27. 氮氧自由基的研究(Ⅱ)&哌啶类氮氧自由基的溶剂效应及其分子结构的研究

    Studies on nitroxides ⅱ the solvent effect of nitroxides and their molecular structure

  28. 受阻胺氮氧自由基光稳定剂的研制

    Research and Synthesis of Hindered Amine N-Oxyl Light Stablizers

  29. 氮氧自由基的研究(Ⅺ)&哌啶氮氧自由基与羟胺的单电子转移反应

    Studies on Nitroxides (ⅺ) & One-Electron Transfer Reaction of Piperidine Nitroxides with Hydroxylamine

  30. 氮氧自由基的研究&Ⅷ.关于溶剂极性经验参数的讨论

    Studies on nitroxides & ⅷ . a discussion on the empirical parameters of solvent polarity