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-methylthiophene
相关语句
  2-甲基噻吩
     Theoretical Study of the Photoisomerization of 2-Methylthiophene to 3-Methylthiophene
     2-甲基噻吩光异构化成3-甲基噻吩的理论研究
短句来源
     The photoisomerization of 2-methylthiophene to 3-methylthiophene was studied at the CASSCF level with a 6-31G* basis set. The reaction channels on the ground state(S_0) and excited state(T_1) were investigated.
     用CASSCF方法以6-31G基组研究了2-甲基噻吩光异构化为3-甲基噻吩的光化学反应和基态(S0)及三重激发态(T1)的相关势能面.
短句来源
     The results show that the sequence of sulfur-containing compounds cracking from difficulty to ease is thiophene, 2-methylthiophene, 2,5-dimethylthiophene.
     结果表明,噻吩类硫化物的裂化难易顺序为噻吩<2-甲基噻吩<2,5-二甲基噻吩。
短句来源
     The alkylation performance of thiophene and its derivatives(such as 2-methylthiophene,3-methylthiophene,and 2,5-dimethylthiophene) with 1-hexene was investigated in a fixed-bed reactor.
     研究了噻吩、2-甲基噻吩、3-甲基噻吩和2,5-二甲基噻吩等硫化物与己烯进行烷基化反应的性能.
短句来源
     Detection reproducibilities of main sulfur compounds(thiophene,n-butyl mercaptan,2-methylthiophene,3-methylthiophene,2,4-dimethylthiophene) in Gasoline Range Petroleum Products were satisfactory (RSDs were no more than 5.0%) and detection limit for sulfur was 0.1mg/L.
     汽油中几种主要硫化物(噻吩、正丁硫醇、2-甲基噻吩、3-甲基噻吩、2,4-二甲基噻吩)浓度测定值重现性的相对标准偏差(RSD)均小于5.0%。
短句来源
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  “2-methylthiophene”译为未确定词的双语例句
     Five symmetric 1,1-bis(heteroaryl)alkanes were synthesized in excellent yields from N-( α -benzotriazolyalkyl)carbamate,2-methylthiophene or 2-methylfuran.
     以N-(α-苯并三唑)氨基甲酸酯和2-甲噻吩或2-甲呋喃为原料,合成了5种对称的1,1-双杂芳基烷,并以元素分析和1HNMR确定了其结构
短句来源
     Detection reproducibilities of main sulfur compounds (thiophene, n-butyl mercaptan, 2-methylthiophene, 3-methylthiophene, 2,4-dimethylthiophene ) in FCC gasoline were satisfactory (RSDs were no more than 5.0%) and detection limit for sulfur was 0.1 (mg/L).
     FCC汽油中几种主要硫化物(噻吩、正丁硫醇、2 甲基噻吩、3 甲基噻吩、2,4 二甲基噻吩)的浓度测定值的相对标准偏差(RSD)均小于5 0%。 当信噪比为3时,测得噻吩硫的检测限为0 1mg/L。
短句来源
     KINETIC INVESTIGATION OF 2-METHYLTHIOPHENE HYDRODESULFURIZATION OVER CoMo/γ-Al_2O_3
     钴钼催化剂上2-甲基噻吩加氢脱硫的动力学考察
短句来源
     However, when the liquid feedstock comprising benzene, model sulfur compounds (such as thiophene, 2-methylthiophene and 2-ethylthiophene) and isobutylene was used, the AlCl 3-CT175 resin catalyst showed high stability in the 1*! 160 h-duration test, and the conversion of thiophene was higher than 95% under WHSV=2.33 h -1 , isobutylene volume velocity of 7.5 ml/min and reaction temperature of 65 ℃.
     考察了AlCl3 CT175树脂催化剂催化模型硫化物如噻吩、2 甲基噻吩及 2 乙基噻吩与异丁烯的烷基化反应性能 ,采用GC FPD和GC MS技术研究了AlCl3 CT175树脂催化剂的失活机理 .
短句来源
     Results showed that when the mercaptan content in jet fuel was in the range of over 300μg/g, between 30-300μg/g, and below 30μg/g, the measuring result was seriously interfered, interfered and basically not interfered, respectively. Other kinds of sulfide, such as ethyl thioether, 2-methylthiophene, 2-ethylthiophene etc.
     结果表明,质量分数在300μg/g以上的硫醇硫严重干扰测定结果,30~300μg/g的硫醇硫对测定结果影响较大,30μg/g以下的硫醇硫和其它类型硫化物对测定结果影响不大。
短句来源
  相似匹配句对
     2.
     2.
短句来源
     2. C.
     (2)C.
短句来源
     m~(-2) .
     m~(-2).
短句来源
     m~(-2).
     间作玉米光合速率平均为28.55μmol.m~(-2).s~(-1),比玉米单作提高了11.5%。
短句来源
     Theoretical Study of the Photoisomerization of 2-Methylthiophene to 3-Methylthiophene
     2-甲基噻吩光异构化成3-甲基噻吩的理论研究
短句来源
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  -methylthiophene
Curves are derived for the effective yield of negative ions from the interaction of electrons with thiophene, 2-methylthiophene, 2-propylthiophene, 3-methylthiophene, 3-propylthiophene, furan, and selenophene.
      
Regioselective C- or O-alkylation of alkyl 4-hydroxy-2-methylthiophene-3-carboxylates with α-halo ketones is possible, depending on the solvent nature.
      
Regioselective C-alkylation of alkyl 4-hydroxy-2-methylthiophene-3-carboxylates with α-halo ketones
      
The yield of 2-methylthiophene obtained from piperilene and I2S is independent of the catalyst texture.
      
At this step the texture of the catalyst affects the yield of 2-methylthiophene.
      
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In situ monitoring of conductivity and potential response of conductive polymers during electrochemical process had been described. A renewable carbon fibre array ring-glassy carbon disk electrode was used for this purpose. Poly (3-methylthiophene) and polythiophene were 1nvestigated with this method, and some 5 orders in magnitude of conductivity changes were observed during the electrochemical redox process.

本文提出一种研究导电聚合物的现场电位、电导测量/电化学方法。该实验方法基于一种可重复使用的玻璃碳-碳纤维组双电极。用该方法研究了聚(3-甲基噻吩)和聚噻吩的现场电位、电导/电化学行为。

The Electrochemical stability of poly(3-methylthiophene) (PMT) thin film modified glassy carbon electrodes was investigated experimentally with successive cyclic voltammetry (CV) The effects of electrolyte solutions on the stability were studted. In the presence of small hydrated anions (≤3.5nm) in the solution, the electroactivlty of PMT films decreased with the characteristies of second order kinetics. In a solution with large hydrated anions (≥4nm), PMT films have good stabtlity. PMT/GC electrode can...

The Electrochemical stability of poly(3-methylthiophene) (PMT) thin film modified glassy carbon electrodes was investigated experimentally with successive cyclic voltammetry (CV) The effects of electrolyte solutions on the stability were studted. In the presence of small hydrated anions (≤3.5nm) in the solution, the electroactivlty of PMT films decreased with the characteristies of second order kinetics. In a solution with large hydrated anions (≥4nm), PMT films have good stabtlity. PMT/GC electrode can electrocatalyse the oxidation of Br~- and Cl~- anions, and loses its electroactivity rapidly. X-ray photoelectron spectra(XPS) have demonstrated that chlorine has bonded covalently onto the PMT structure after CV cycles in NaCl solutions.

用连续循环伏安法研究了电化学法制备的聚(3-甲基噻吩)(PMT)薄膜修饰玻璃碳电极在不同支持电解质溶液中的电化学稳定性。在易嵌入PMT的阴离子存在下,PMT电活性随扫描次数按表观二级反应降低;在难嵌入PMT的离子存在下,PMT具有良好稳定性;在含有氯、溴离子的水溶液中,PMT可将卤离子电催化氧化,并引起PMT电活性迅速下降。光电子能谱分析表明氯已键合到PMT结构上。

Small amplitude potential step experiments were carried out to study the counterion transfer process in oxidized poly(3-methylthiophene) (PMT) film. The results demonstrate that anion transfer process in PMT film is migration rather than diffusion. A porous metal electrode model——single hole model, which takes into account both the ionic resistance of the film and the uncompensated solution resistance, was found suitable to describe the potential step experiments. According to this model, the ionic resistivity...

Small amplitude potential step experiments were carried out to study the counterion transfer process in oxidized poly(3-methylthiophene) (PMT) film. The results demonstrate that anion transfer process in PMT film is migration rather than diffusion. A porous metal electrode model——single hole model, which takes into account both the ionic resistance of the film and the uncompensated solution resistance, was found suitable to describe the potential step experiments. According to this model, the ionic resistivity of oxidized PMT film was calculated to be 5.0×10~4Ω·cm, and, in turn, the diffusion coefficent of ClO_4~- ion in PMT film 3.7×10~(-9)cm~2/s.

在聚(3-甲基噻吩)(PMT)氧化态进行的小幅度电位阶跃计时电流实验证明,氧化态PMT膜中阴离子的传输是迁移过程,而非扩散过程.适用于该电位跃过程的模型是考虑膜离子阻抗及未补偿溶液电阻的多孔金属电极模型——单孔模型.用该迁移模型得到的PMT膜离子电阻率为5.0×10~4Ω·cm,进而求得ClO_4~-离子在膜内的扩散系数为3.7×10~(-9)cm~2/s.

 
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