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氧化膦

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The experimental results indicate that the autoxidation of phosphine has two types of reaction operating at the same time: a free radical chain reaction and the direct reaction between phosphine and oxygen.

实验结果表明,膦化物在燃油介质中的氧化反应有两种反应类型同时进行,即:自由基链反应及膦化物与氧气的直接作用。

Durable formaldehyde-free phosphorus flame retardant for cotton,FRC-F,was synthesized with dimethyl methylphosphonate,phosphoric pentaoxide and ethylene glycol-glycerol mixt.

利用甲基膦酸二甲酯、五氧化二磷、乙二醇、丙三醇的混合物成功地合成了一种无甲醛棉用耐久性膦系阻燃剂,探讨了阻燃剂FRC-F、多元羧酸交联剂BTCA、催化剂NaH2PO2、柔软剂等应用于棉织物的工艺。研究结果表明:阻燃剂FRC-F是一种值得研究和开发的无甲醛棉用阻燃剂

When using urea-hydroperoxide as oxygent, just the trimethylphosphine adsorbed on the Lewis acid sites in TS-1 zeolite was oxidized. It further confirmed that the hydroperoxo-titanium species formed by the interaction between the titanium in Lewis acid sites and urea-hydroperoxide are the active oxidation center, and the titanium in the framework as Lewis acid sites enhances the oxidation ability of hydroperoxide. 3. Phenylacetaldehyde and benzaldehyde are found to be the major products in the catalytic oxidation of styrene over TS-1 zeolite, and styrene epoxide is not as speculated detected.

当以过氧化氢尿素为氧化剂时,室温条件下吸附在TS-1分子筛Lewis酸性位的三甲基膦即能被氧化,由此进一步证明,TS-1分子筛中由Lewis酸性位的骨架钛与过氧化氢相互作用形成的过氧化钛物种是三甲基膦氧化反应的活性中心,骨架钛作为Lewis酸中心提高了过氧化氢的氧化能力。

DDPA adsorbs on zirconia with only one phosphonic group, and another is free.

研究结果表明,DDPA仅以一个膦酸基与氧化锆结合,因而DPZ固定相表面上除了有长链的疏水烷基外,还有酸性的膦酸基和碱性的氨基。

The results of color reaction of zirconia with ammonium molybdate indicate that, in both cases, DDPA adsorbed on zirconia via the combination of one phosphonic group with zirconia, and another phosphonic group was free.

通过磷的显色反应发现,DDPA只以1个膦酸基团与氧化锆结合,而另一个膦酸基团则处于游离状态。

Study on synthesis of phosphonic acid with thiadiazole and corrosion resistance on copper;2. Synthesis of N,N-dimethyl-1-aminomethane-1,1-di phosphonic acid N-oxide and researches on its corrosion and scale inhibition performances;3. Two phosphonic acid s: dodecylamine-N,N-dimethylene phosphonic acid and dodecyl phosphonic acid,were used to modify zirconia stationary phase in this paper.

通过红外、元素分析对2种不同类型的膦酸化合物改性氧化锆的改性条件和改性机理进行了研究,结果表明:十二烷基膦酸通过Lewis酸碱作用改性,室温浸泡即可达到满意的吸附量;而具有螯合结构的十二胺-N,N-二亚甲基膦酸与氧化锆结合时存在较强的络合作用,最佳改性条件为酸性条件下加热回流。

The effects of technologic parameters, including concen- tration and temperature of ADP solution and galvanizing time on rising time of anodic oxide films are discussed. 2. After dipped in amino trimethylene phosphonic acid solution, anodic oxide films are annealed in pipe stove.

将化成箔在氨基三甲叉膦酸溶液中浸渍,取出烘干后再进行热处理,研究了 ATMP 溶液浓度、浸渍温度和热处理温度对氧化膜升压时间、比容、耐电压的影响,找到其最佳耐水合处理工艺;采用FT-IR对水合作用后的 ATMP 处理氧化膜和未经耐水合处理氧化膜进行了分析。

Lithium perfluoroalkylphosphonate was synthesized by LiF and perfluoroalkylphosphonate acid obtained by electrochemically fluorinating chlorodiisopropylphosphine. Some properties of a kind of electrolyte that was made from dissolving the lithium perfluoroalkylphosphonate in the mixed solvent with ethylene carbonate and dimethyl carbonate mass ratio 1∶1 were investigated, such as conductivity, stability toward hydrolysis and oxidative decomposition potential, and so on.

选取氯代二异丙基膦(C6H14PCl)为原料,利用电化学氟化方法,得到全氟烷基膦酸[(C3F7)2PF3],(C3F7)2PF3与氟化锂反应得到全氟烷基膦酸锂Li[(C3F72PF4],将其溶于碳酸乙烯酯和碳酸二甲酯质量比为1∶1的混合溶剂中得到电解液,考察电解液的电导率、抗水性及氧化分解电位。

In this dissertation, preparation of polysubstituted ethene and heterocyclic compounds based on 2-hydroxyalkyl phenyl selenides andα-phenylselenopropionic acid reagents were further investigated as follow: Firstly, O-ethyl-O-vinyl phosphonates were prepared in a one-pot, two-step transformation by Mitsunobu reaction of 2-hydroxyalkyl phenyl selenides with monoethyl esters of phosphonic acid in the presence of diethyl azodicarboxylate and triphenyl phosphine (PPh3) followed by oxidation-eliminatio...

中文摘要:本文主要进一步探索了2-羟基烷基苯基硒醚、α-苯硒基丙酸试剂在制备多取代乙烯和杂环化合物反应中的应用,具体研究内容和结果如下:一、在偶氮二羧酸乙酯和三苯膦(PPh3)存在下,苯基-2-羟基烷基硒醚和O-乙基膦酸单酯发生Mitsunobu反应,无需分离和纯化反应中间体,直接使用30 %的双氧水进行氧化-消除反应,提供了&两步、一锅&合成O-乙基-O-乙烯基膦酸酯的新方法,该方法反应条件温和,操作简便,产物收率良好(76-82 %)。

Three phosphorus-containing polybibenzimidazoles, namely, poly [2,2'-di-p-phenylene methyl phosphine oxide-5,5'-bibenzimidazole], have been prepared by condensing 3,3'-diaminobenzidine with di-(p-carboxy phenyl) methyl phosphine oxide.

用双烷基氧膦与3,3'-二氨基联苯胺缩聚,合成了三个在主链上带有联苯并咪唑和氧化三烃基膦结构的高分子化合物。

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