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- However when the solvent is isopropyl alcohol or non polar solvent the decomposition value of monocrotophos is about 5% in the same condition. 但用异丙醇或非极性溶剂作溶剂时,在相同的条件下,久效磷的分解率为5%25左右。
- Fluorobenzonitrile(4 FBN) was prepared by fluorination of 4 chlorobenzonitrile(4 CBN) with potassium fluoride using 1,3 dimethyl 2 imidazolidone (DMI) as a non polar solvent. 以4氯苯甲腈(4CBN)和无水氟化钾为原料,1,3二甲基2咪唑啉酮(DMI)为反应介质,经氟化反应合成了4氟苯甲腈(4FBN)。
- Anionic polyelectrolytes can ionize in polar solvent, forming macromolecule chains with lots of anionic charge. 阴离子型聚电解质在极性溶剂中会发生电离,导致大分子链上带有大量的净负电荷。
- The multiphase copolycondensation of PMDA,BOPDPA and ODA was carried out in polar solvent. 以均酐 (PMDA)、双醚酐 (BOPDPA)和 4 ,4 -二氨基二苯醚 (ODA)为原料 ,在极性溶剂中进行多相共缩聚。
- The influence on separating non polar systems of C4 fractions by extractive distillation with addition of salt in terms of relative volatility at infinite dilution was studied. 以C4为例利用无限稀释相对挥发度的试验测定结果,研究加盐萃取精馏分离非极性体系的影响规律。试验研究表明,溶剂加盐能够提高C4组份之间的相对挥发度,且比一般有机溶剂效果明显;
- The paper studied a method of preparing noncovalent molecular imprinting polymer(MIP) in polar solvent. 本文对极性溶剂中非共价型分子烙印聚合物的制备条件进行了研究。
- For arginine,the yield was improved to nearly 80% by using weakly polar solvent such as DCM and simultaneously increasing the reaction time to 20 h in the method of acyl chloride. 在酰氯法中;对于精氨酸;选择弱极法溶剂如DCM;延长反应时间至20 h;连接效率接近80%25.
- Nonpolar solvent with little dielectric constant has good effcet to the rate of the reaction,while larger polar solvent without H + also can increase the rate of the reaction. 可以知道对甲醇羰基化这一反应 ,在极性溶剂中 ,极性较大且为非质子型的溶剂能显著提高反应的速率 ;在非极性溶剂中 ,介电常数较小的溶剂能增加反应速率。
- The vapor liquid equilibria and critical properties for 10 non polar chain like fluids and 6 associating fluids are investigated by combining the renormalization group (RG) theory and the Yukawa EOS extended for chain like fluids. 结合重整化群 (RenormalizationGroup ;RG)理论和适用于链状流体的Yukawa状态方程 ;研究了 10个非极性链状流体和 6个缔合流体的汽液相平衡和临界性质 .
- Nonpolar solvent with little dielectric constant has good effcet to the rate of the reaction,while larger polar solvent without H+ also can increase the rate of the reaction. 可以知道对甲醇羰基化这一反应,在极性溶剂中,极性较大且为非质子型的溶剂能显著提高反应的速率;在非极性溶剂中,介电常数较小的溶剂能增加反应速率。
- This orientation will lead to a higher oxygen concentration in the catalyst layer (O2 has a much higher solubility in non polar backbone) and should produce a much improved ORR performance. 这一方针将导致更高的氧气浓度在催化剂层( O2已经相当高的溶解度在非极性骨干) ,并应产生一个很大的改进奥尔性能。
- If unclear or unknown of polarity of circuit indication. Non polar capacitor is recommended to be used. 在电路回路中如不清楚或不明确线路的极性时,则建议使用无极性电解容器。
- In the presence of ZnCl_2 , the gels can be formed by PAATEA in many strong polar solvent, for example, methanol, propylene carbonate, water, DMSO. PAATEA is not dissolved in non-polar solvent such as DME, DOL. 这种凝胶因子在ZnCl_2 的存在下,能够在甲醇、碳酸丙烯酯、水、二甲亚砜等强极性溶剂中形成凝胶,在乙二醇二甲醚等非极性溶剂中不溶解。
- Nonpolar solvent with little dielectric constant has good effect to the rate of the reaction, while larger polar solvent without H(superscript +) also can increase the rate of the reaction. 可以知道对甲醇羰基化这一反应,在极性溶剂中,极性较大且为非质子型的溶济能显著提高反应的速率;非极性溶剂中,介电常数较小的溶剂能增加反应速率。
- non polar velocity-diagram method 无极速度图法
- Introduction: the product has a very high dilatability in the polarity solvent such as water base and alcoholic group. 介绍:产品在水基,醇基等极性溶剂中具有很高的膨胀性,增稠和悬浮稳定性。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The super-molecular structures of the solute and the solvent molecules connected by hydrogen bonding have been constructed for four kinds of polar solvents. 在四种极性溶剂中,我们构造了包括氢键作用的超分子结构。
- It is believed that a small polarity of the CNF surface leads to its higher wettability in a non-polar solvent such as cyclohexane than in polar solvent such as water. 不同的表面改性手段可对CNF的表面性质进行调变以控制其在不同溶剂中的润湿行为。
- Because ultrafine TiO_2 is strong polarity material, the nano-scale TiO_2 can not be dispersed in non-polarity solvent well and is easy to agglomerate in the polarity solvent. 同时,由于纳米TiO_2具有强极性,使得TiO_2不易在非极性介质中分散,在极性介质中易于团聚,直接影响二氧化钛本身优异性能的发挥。