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imide group
相关语句
  酰亚胺基团
     PREPARATION AND CHARACTERIZATION OF EPOXY FOAM CONTAINING IMIDE GROUP
     含酰亚胺基团环氧泡沫的制备及其性能
短句来源
  “imide group”译为未确定词的双语例句
     Real-time Fourier-transformed infrared spectroscopy (FTIR) was used to monitor the curing process of hybrid sol, indicating the formed imide group decreased with increasing titania content.
     通过实时傅立叶红外光谱(FTIR)研究了杂化溶胶的凝胶固化过程。 采用热重分析研究了杂化膜在氧气和氮气气氛下的热降解行为。
短句来源
     In this paper,a novel curing agent(MDIA) containing imide group was synthesized and an epoxy foam was prepared using MDIA as curing agent and DMF as blowing agent at different temperature and different DMF content.
     合成了一种端氨基酰亚胺固化剂MDIA,以其在不同温度、不同发泡剂含量下固化双酚A环氧树脂制备大孔环氧泡沫材料。
短句来源
  相似匹配句对
     . group's.
     而且实验组的增量显著高于控制组的增量。
短句来源
     group.
     静脉组未测得代谢物。
短句来源
     PREPARATION AND CHARACTERIZATION OF EPOXY FOAM CONTAINING IMIDE GROUP
     含酰亚胺基团环氧泡沫的制备及其性能
短句来源
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  imide group
Molecules with bulky 2'-substituents show larger rotations between the mean phenyl and maleimide ring planes, and varying degrees of distortion to the imide group.
      
Kinetic analysis was studied with dynamic DSC, which revealed a relatively lower curing activation energy of III/I systems, because the tertiary amine on the imide group catalyzed the curing reaction.
      
Though the imide group has a catalysis effect on the curing reaction of DGEBA with DDS, however, its poor compatibility with epoxy resin retards the curing reaction.
      
The imide group, a tertiary amine, is a catalyst of the curing reaction of DGEBA with DDS, but it is poorly compatible with uncured epoxy resin.
      
In the second stage pyrolysis, the decomposition of partially carbonized solid residue and the remaining imide group produced CO2 as a major product along with benzene and small a amount of benzonitrile.
      
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This paper produces modified phenolic resin of high temperatureresistance, with the method of imide group linked to phenolic resin(PF) side chain. The high stability of modified PF resin, the effects of PF/BMI on the thermal decomposition temperature and mechanical property are discussed.

采用酚醛树脂侧链上连接酰亚胺基团的方法,制备了耐高温改性酚醛树脂,探讨了改性树脂的耐热性能、酚醛树脂与双马来酰亚胺的配比对其热分解温度以及力学性能的影响。

The structure of N,N′ meta phenylene bis maleimide(MPBM)/EPDM valcanization was studied with FT IR in this paper. It is shown that in MPBM/EPDM peroxide curing vulcanizate, there appear some special absorption bands assigned to imide group, benzene ring vibration, C-N stretching vibration, tertiary carbon atom C-H stretching vibration and defromational vibration, respectively, while the bands due to cis double substitution alkene, carbonyl conjugate double bond and unsaturated ring disappear....

The structure of N,N′ meta phenylene bis maleimide(MPBM)/EPDM valcanization was studied with FT IR in this paper. It is shown that in MPBM/EPDM peroxide curing vulcanizate, there appear some special absorption bands assigned to imide group, benzene ring vibration, C-N stretching vibration, tertiary carbon atom C-H stretching vibration and defromational vibration, respectively, while the bands due to cis double substitution alkene, carbonyl conjugate double bond and unsaturated ring disappear. So, it can be deduced that MPBM opens the cis double bonds in pentac heterocyclic ring and crosslinks with EPDM, therefore introduces the MPBM bridge bond" into EPDM crosslinking network and changes the structure of the network and than proceed to affect the properties of vulcanizate.

采用傅立叶变换红外光谱( F T I R)对 N, N′间苯撑双马来酰亚胺( M P B M )/ E P D M 硫化胶的结构进行研究。结果表明,在 M P B M / E P D M 过氧化物硫化胶中,出现了代表酰亚胺( C O- N- C O)基,苯环振动、 C- N 伸缩振动、叔碳原子碳氢伸缩振动和变形振动特征峰,而顺式二取代烯烃,羟基共轭双键以及不饱和环的吸收峰消失,从而推论了 M P B M 在硫化过程中打开了五元杂环中顺式双键,与 E P D M 分子间发生化学交联,从而在 E P D M 交联网络中引进了 M P B M“桥键”,改变了网络结构进而影响硫化胶的性质。

The thermo oxidative degradation of polyamide 6 (PA 6) was investigated by means of detailed analysis of the reaction products. The changes in the contents of main groups produced in PA 6 during thermo oxidation were determined by chemical methods. The volatile products of PA 6 during thermo oxidation were collected and characterized by GC MS. The hydrolysis products of oxidized PA 6 were also characterized by GC—MS.Experimental results showed that the hydroperoxide was the initial oxidation product of PA 6,...

The thermo oxidative degradation of polyamide 6 (PA 6) was investigated by means of detailed analysis of the reaction products. The changes in the contents of main groups produced in PA 6 during thermo oxidation were determined by chemical methods. The volatile products of PA 6 during thermo oxidation were collected and characterized by GC MS. The hydrolysis products of oxidized PA 6 were also characterized by GC—MS.Experimental results showed that the hydroperoxide was the initial oxidation product of PA 6, and through its decomposition and further reactions, various oxidation products were formed, such as keton group and carboxylic group. From the analysis of hydrolysis products of oxidized PA 6, it was shown that a large amount of imide group was formed on the main chain. But at the same time some keton amide group was also formed on the main chain. It means that although hydrogen abstracting reaction by radicals mainly occurs at the methylene group adjacent to the nitrogen atom, it can occur at the methylene group adjacent to the carbonyl group of amide group as well. From the analysis of the volatile products, of great interest is that a lot of cyclic compounds, which had not been reported yet, were formed during thermo oxidation of PA 6.It indicates that some cyclization reactions should be included in the oxidation process of PA 6.On the basis of all the obtained experimental results a complete mechanism of PA thermo oxidative degradation was suggested. The mechanism contains the hydrogen abstracting reaction by radicals at the methylene group adjacent to nitrogen atom and at the methylene group adjacent to the carbonyl of amide group, a series of radical addition cyclization reactions, and radical induced chain scission reactions. It can well explain the results of the product analysis.

通过详细分析测定反应产物 ,研究了聚酰胺 (PA6)的热氧化降解机理 .用化学方法测定了PA6热氧化过程中几种主要基团含量的变化 ,对PA6热氧化的气相挥发产物进行收集和分析鉴定 ,还对经过氧化的PA6样品进行水解并用GC MS法对水解产物进行了分析鉴定 .在这些实验结果的基础上 ,提出了较完整的聚酰胺热氧化降解机理 .该机理包含了自由基在与酰胺基的羰基相连的亚甲基上的夺氢反应及一系列自由基加成环化和诱导断链的反应 ,能很好地解释反应产物的分析结果 .

 
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