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polymeric
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  聚合物
    Design, Synthesis and Properties of Novel Electro-Optical Polymeric Materials and High Performance Polymers
    新型电光高分子和高性能聚合物的设计、合成与性能
短句来源
    Study on the Preparation and Properties of Novel Second-Order Nonlinear Optical Polymeric Films
    新型二阶非线性光学聚合物膜材料的设计、制备与性能研究
短句来源
    Polymer Catalysts Ⅰ.Tetraalkyl Ammonium Polymeric Reagents as Catalyst in Decomposition of Trichloroacetic Acid
    聚合物催化剂——Ⅰ.季铵盐聚合物试剂作三氯乙酸分解的催化剂
短句来源
    Syntheses of Phenol-Formaldehyde and Acetal Types Polymeric Crown Ethers Containing Benzo-15-Crown-5 and Their Complexing and Catalytic Properties
    含苯并15-冠-5的酚醛型和缩醛型聚合物冠醚的合成及其络合与催化性能
短句来源
    Synthesis of Some New Polymeric Ligand-Anchored Rhodium Catalysts and Their Hydroformylation Properties
    几种新型聚合物配体的合成及其固载化铑催化剂的醛化性能研究
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  高分子
    Design, Synthesis and Properties of Novel Electro-Optical Polymeric Materials and High Performance Polymers
    新型电光高分子和高性能聚合物的设计、合成与性能
短句来源
    Study on the Morphology and Olefin/Paraffin Permeation Properties of Metal Doped Polymeric Membranes
    含金属高分子膜形态及烯烃、烷烃渗透行为研究
短句来源
    AESCRPTION AND DETERMINATION OF TRACE BENZENE HYDROCARBON IN WATER WITH POLYMERIC MICROBEADS GDX——502
    高分子微球GDX—502对水中痕量苯系物的吸附富集
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    THE ACTIVITY AND STABILITY OF POLYMERIC PHOSPHINE-PALLADIUM CATALYSTS FOR HYDROGENATION OF OLEFINS
    高分子膦-钯络合催化剂的氢化催化活性和稳定性的考察
短句来源
    SYNTHESIS OF POLYMERIC METALLOPORPHYRINS SENSITIZERS AND THEIR ABILITY OF SINGLET OXYGEN PRODUCTION
    高分子金属卟啉敏化剂的合成及其产生单线态氧的能力
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  聚合的
    Polymeric metavanadate species existed on the surface of wire-mesh-honeycomb loaded with V(l)-W(3)/TiO_2. Almost no entrance effect was observed for wire-mesh-honeycomb with its length above 5cm.
    V( 1) W ( 3 ) /TiO2 的蜂窝状筛网催化剂表面存在聚合的钒基物种。 催化剂长度大于 5cm时 ,不存在进口效应。
短句来源
    Study of Ultrasonically Initiated Emulsion Polymerization of Styrene in the Presence of Polymeric Surfactant
    高分子表面活性剂存在下超声辐照引发苯乙烯乳液聚合的研究
短句来源
    Influenceof differeYt polymeric conditions, such as tdrie, solveni, catalyst, cocata1yst, onpolymerization were studied in detail.
    详细研究了聚合条件(时间、溶剂、催化剂、共催化剂)对聚合的影响。
短句来源
    3. The objective monomers were polymerized by free radical polymerization method. Influence of different polymeric conditions, such as temperature, solvent, time and catalyst, were investigated in details.
    3.采用自由基聚合法,对四个目标单体进行了聚合,详细研究了聚合条件(温度、溶剂、时间、催化剂比例)对聚合的影响,选择最佳聚合条件;
短句来源
    In this paper, Nation/polymeric composite membranes were prepared by recast membrane and polymerize in situ method. The composite membranes were characterized by IR and SEM methods.
    本文以重铸膜和原位聚合的方法制备Nafion/聚合物磺酸复合膜,采用IR和SEM等手段对复合膜进行表征。
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  “polymeric”译为未确定词的双语例句
    On the Modification of Polymeric Stationary Phases GDX by Oxidation and the Evaluation of the Perfor-mance of Chromatographic Columns
    GDX固定相的氧化改性及柱效评价
短句来源
    STUDIES ON ADSORPTION BEHAVIOUR H-103 POLYMERIC ADSORBENT FOR DILUTE SOLUTION OF SORBIG ACID
    H—103树脂对山梨酸稀溶液吸附行为的研究
短句来源
    The Investigation of the Adsorption for Au(Ⅲ) by Macroporous Polymeric Adsorbent Made of Poly (Triallyl Cyanurate)
    聚三烯丙基氰尿酸酯大孔吸附树脂对Au(Ⅲ)吸附性能的研究
短句来源
    Selective and Reversible Sorption of Target Solutes Through Polymeric Ligand Exchange
    Selective and Reversible Sorption of Target Solutes Through Polymeric Ligand Exchange
短句来源
    ADSORPTION OF THE POLYMERIC ADSORBENT AB-8 FOR MOGROSIDE
    AB—8树脂对罗汉果皂甙的吸附
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  polymeric
Both metalation reaction with n-butyllithium and hydrochlorination reaction with dry hydrogen chloride selectively and quantitatively occurred at the pendant reactive sites, generating polymeric benzyllithium and 1-chloroethylbenzene species.
      
New approaches to stimuli-responsive polymeric micelles and hollow spheres
      
This article briefly describes some new approaches to stimuli-sensitive polymeric micelles and hollow spheres, which were developed in the authors' laboratory in recent years.
      
Generalization of in-situ polymerization method for preparing core-shell polymeric nanospheres and hollow spheres
      
They were crosslinked in situ via the radical polymerization of the vinyl group initiated by BPO after doping with lithium trifluoromethanesulfonimide (LiTFSI) to give rise to tough polymeric electrolyte films.
      
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A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow...

A new iodine heterocycle, 3,6-dinitro-dibenzopyriodonium bisulfate (Ⅲa), prisms, m.p. 217.5° (dec.), was found to be readily prepared in 86% yield by treating 4,4'-dinitrodiphenylmethane with iodosyl sulfate, which was conveniently obtained by stirring a stoichiometric mixture of iodine and sodium iodate in concentrated sulfuric acid. The iodonium compound (Ⅲa) could be converted to the chloride (Ⅲb), colorless needles, m.p. 211.5° (dec), bromide (Ⅲc), yellowish needles. m.p. 217.5° (dec.), iodide (Ⅲd), yellow powder, m.p. 164° (dec.) and picrate (Ⅲe), yellow needles, m.p. 183-184° (dec.) by treating its solution in formic acid with a 50% formic acid solution of sodium chloride, sodium bromide or potassium iodide or with an alcoholic solution of picric acid respectively. The structural formula (Ⅲ) of the new iodonium compounds was derived by means of potassium permanganate oxidation of the bisulfate (Ⅲa) to 2-iodo-4-nitrobenzoic acid, and by thermal decomposition of the iodide (Ⅲd) to 2,2'-diiodo-4, 4'-dinitro-diphenyl-methane (Ⅵ) (60% yield), m.p. 158-159°, the structure of which was shown by analysis and by comparison with what is known about the behavior of other iodonium iodides, e.g., 4,4'-dicarboethoxy-diphenylene iodonium iodide (Ⅷ), which decomposes on heating yielding 2,2'-diiodo-4,4'-dicarboethoxydiphenyl (Ⅸ). Compound (Ⅵ) could be reduced with tin and hydrochloric acid to a diamino compound (Ⅶ).The iodonium salt (Ⅲa) possessed the interesting property that when it was treated with dilute sodium hydroxide solution at room temperature with the addition of ethyl acetate or pyridine, a beautiful bluish-green color gradually developed in the organic layer. When it was heated with dry pyridine, the same color developed. The colored ethyl acetate solution changed to brownish yellow on acidification with dilute sulfuric acid and regained its bluish-green color when the acidified solution was made alkaline.Under similar conditions as described above, reaction between diphenylmethane and iodosyl sulfate gave a grayish substance, m.p. 210-212°, which was insoluble in common solvents. This substance was possibly a polymeric compound of formula (Ⅺ).

1.4,4'-二硝基二苯甲烷(Ⅰ)與硫酸亚碘醯(Ⅱ)作用,生成一种新型的含碘杂環化合物(Ⅲ_a)。 2.化合物Ⅲ_a與氯化鈉、溴化鈉、碘化鉀或苦味酸作用,置换成为相應的鹵化物(Ⅲ_(b-d))或苦味酸盐(Ⅲ_e)。 3.用鹼性高錳酸鉀溶液氧化化合物Ⅲ_a得2-碘代-4-硝基苯甲酸。 4.碘化物(Ⅲ_d)在它的熔點温度进行熱解,得2,2'-二碘代-4,4'-二硝基二苯甲烷。继还原,得相應的二氨基化合物。二者均为新化合物。 5.化合物Ⅲ_a用氢氧化鈉溶液处理,得到蓝绿色物質,溶於乙酸乙酯、丙酮、吡啶中成鲜明的蓝绿色溶液。乙酸乙酯溶液酸化後变成黄棕色,再鹼化復现蓝绿色。将化合物Ⅲ_a在无水吡啶中加熱,亦呈现蓝绿色。 6.在类似的条件下,二苯甲烷與硫酸亚碘醯起作用。

Dithio-oxamide condensed with 1,3-dichloroacetone in acetone in the presence of precipitated calcium carbonate to form 4,4'-dichloromethyl-2,2'-dithiazolyl (Ⅰ). It melted at 165°. The condensation between these two compounds was complicated by the formation of polymeric compound in case they were heated in ethanol at its boiling temperature.

1.二硫代乙二酰胺和1,3-二-氯代丙酮在丙酮中和在沉淀碳酸钙存在时缩合得4,4'-二-氯代甲基-2,2'-双噻唑。 2.4,4'-二-氯代甲基-2,2'-双噻唑的两个氯原子反应性能和一级烷基氯相同,能被(1)碘原子:(2)CH_3COO—基团:(3)C_6H_4(CO)_2N—基团:(4)(CH_3)_2N—基团,(5)基团,(6)C_6H_5O—基团,(7)ρ-CH_3C_6H_4O-基团,(8)(C_2H_5)_2N—基团所取代。 3.2,2'-双噻唑-4,4'-二甲基异硫脲二盐酸盐和氫氧化钾溶液共沸得2,2'-双噻唑-4,4'-二甲基二硫醇。 4.其季铵盐可由二法制得:(1)4,4'-二-氯代甲基-2,2'-双噻唑和三甲胺缩合产生二氯化六甲基2,2'-双噻唑-二甲基二铵。(2)4,4'-(N-四甲基-二-氨甲基)-2,2'-双噻唑和碘代甲烷生成二碘化六甲甚2,2'-双噻唑-4,4'-二甲基二铵;相似地-4,4'-(N-四乙基-二-氦甲基)-2,2'-双噻唑和碘代乙烷生成二碘化六乙基2,2'-双噻唑-4,4'-二甲基二铵。

The radiation copolymerization of tetrafluoroethylene and hexafluoropropylene was investigated at ?78 ℃ with a 20,000-curie Co60 γ-source. Values of the copolymerization rate constant were found to decrease with the increase of the amount of hexafluoropropylene in the monomer mixtures. This indicates that hexafluoropropylene has a lower copolymerization reactivity. Values of n in the rate equation R = KIn are 0.60, 0.78, and 0.85, as the mole fractions of hexafluoropropylene in the monomer mixtures are 0.1,...

The radiation copolymerization of tetrafluoroethylene and hexafluoropropylene was investigated at ?78 ℃ with a 20,000-curie Co60 γ-source. Values of the copolymerization rate constant were found to decrease with the increase of the amount of hexafluoropropylene in the monomer mixtures. This indicates that hexafluoropropylene has a lower copolymerization reactivity. Values of n in the rate equation R = KIn are 0.60, 0.78, and 0.85, as the mole fractions of hexafluoropropylene in the monomer mixtures are 0.1, 0.5, and 0.7, respectively. This signifies that an increase in hexafluoropropylene concentration lowers the propability of biradical termination.A post-effect of the copolymerization was noticed. It was found that values of kp/ki in post-polymerization increase with the irradiation dosage. This fact is explained as due to the decrease in k2 resulting from the enrichment of trapped polymeric radicals as a consequence of increased "in source" conversion on higher irradiation dosages.The effect of some common organic solvents and inhibitors on the copolymerization rate was also studied. Most of the results support a free-radical mechanism for this low-temperature liquid-phase radiation copolymerization; possibilities of simultaneous radical-cationic polymerization or of cationic polymerization, however, can not be ruled out.

进行了四氟乙烯与全氟丙烯在-78℃的辐射共聚合。辐照是在20,000居里的钴源中进行的。测定了不同组分的单体混合物的共聚反应速率常数(是),发现k值随单体混合物中全氟丙烯含量增加而递减。这表示全氟丙烯的共聚活性较低。测得的辐射剂率对共聚反应速率关系式(R=KI~n)中的n值系随全氟丙烯含量增加(克分子分数为0.1,0.5及0.7)而递增(分别为0.60,0.78及0.85)。这意味着增加全氟丙烯含量降低了双基终止的几率。 研究了共聚反应的后效应。发现后聚合反应的k_p/k_t值随辐照剂量增加而递增,这是由于辐照剂量增大相应地增加了“在源”聚合的转化率(共聚物不溶于单体),因而诱陷了较多的游离基,以致降低了k_t值的结果。 观察了一些常用的溶剂及阻聚剂对共聚反应速率的影响。大部分的结果支持这一低温液相辐射共聚反应是游离基型反应。但也不排除在某些情况下是阳离子型和游离基型并存或是阳离子型的可能。

 
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