是什么让一个分子呈极性或者非极性？
在某一极性介质中，游离的分散剂分子通过非极性尾链间的吸附作用被拉向那些已经吸附在颜料表面的分子。
In certain polar media, free molecules are drawn to those already attached to the pigment surface through apolar-apolar interaction of the tails.
往一种极性和非极性液晶混合物中添加3%的这些化合物，可以大大降低液晶混合物的阈值电压，而只引起粘度的小量增加。
Adding 3% of these compounds to a polar and a nonpolar liquid crystal mixtures significantly reduces their threshold voltage while only causes a modest increase in viscosity.
结果表明，所合成树脂在极性溶剂中的溶胀性能均比在非极性溶剂中好；
The results show that the swelling properties of the synthetic resins in polar solvents are better than those in nonpolar solvents.
极性溶剂和非极性溶剂的两步提取法是迷迭香抗氧化剂和精油综合提取的有效方法，操作简单，容易实施。
Two-step extraction with polar solvents and nonpolar solvents was an effective comprehensive extraction for antioxidant and essential oil of rosemary Rosmarinus officinalis l.
对用非极性固定相分离不同极性的化合物时色谱峰的峰形与保留值的关系进行了研究。
The relationship between the chromatographic peak form of the compounds with different polarity and the retain value has been studied by using non-polar stationary phase.
该酶的氨基酸组成为：中极性酸性氨基酸占17.29%，极性碱性氨基酸占4.50%，极性中性氨基酸占38.50%，其它为非极性氨基酸；
The acidic amino acid content of the enzyme was 17.29%, alkaline amino acid 4.50% and neutral amino acid 38.50%, and others were nonpolar amino acids.
并用非极性溶剂或弱极性溶剂进行重结晶。
The product was recrystallized by non-polar or low-polar solvent.
在极性溶剂(丙酮)或非极性溶剂(甲苯)中，用三甲基氯硅烷对全硅介孔分子筛m CM - 41进行了表面修饰。
The pure silica mesoporous molecular sieve (MCM-41) was modified on the surface by trimethylchlorosilane in polar solvent (acetone) and apolar solvent (toluene).
邻苯二甲酸氢铷(RAP)是一种有机极性离。产型晶体。本文通过实验研究了它在非极性轴方向的介电、DC电导、P -e曲线、光透过率等有关性能。
Rubidium acid phthalate (RAP) is an ionic organic polar crys-tal. In this paper, the experimental studies of its dielectric property, DCconductivity, P-E curve and transmission are reported.
山羊fgf 5基因所编码的蛋白质中，20种氨基酸的含量差异很大，极性氨基酸含量高于非极性氨基酸含量。
The composition analysis of amino acid showed that the contents of 20 kinds of amino acid were unbalanced, the contents of polar amino acid were higher than that of nonpolar amino acid in FGF5 gene.
结果表明：该离子液体能溶于常见极性有机溶剂，不溶于非极性有机溶剂。
The results show the ionic liquid is soluble in common polar organic solvents and dissoluble in common non-polar organic solvents.
请依据氨基酸支链的性质来分类：疏水性、亲水性、极性与非极性。
Please group amino acids according to the nature of their side chains: hydrophobic, hydrophilic, polar and nonpolar.
聚丙烯为非极性的高聚物，只有经过特殊的表面处理使其变为极性表面，才能得到高的粘接强度。
Polypropylene is a non-polar high polymer. During the treatment, a polar surface layer is formed which gives rise to a higher adhesion strength.
本文在中等极性和强极性玻璃毛细管柱研究的基础上，对弱极性和非极性固定液在硫酸钡微晶改性表面上的涂渍情况作了详细的研究。
Based on the research in the medium and strong polar glass capillary column, the coating on the barium sulfate micro crystal modified surface with apolar and weak polar liquid phase is investigated.
广泛用作脱漆剂、稀释剂、洗涤剂、萃取剂。对极性及非极性物质均具有极强之溶解力。
Extensive application in paint remover, diluent, cleaning agent, extraction. It has high solvent power for both polar and non-polar substances.
研究表明，只要对这种改性表面进行钝化处理，即可涂渍出高效弱极性和非极性毛细管柱。
The results show that high-efficient apolar and weak polar glass capillary columns can be coated only if this modified surface is treated with deactivation.
同一岩样浸入极性和非极性的流体中，其膨胀性能是不同的，这与水分子的极化特性及其表面张力有关。
Very important for the swelling behaviour Is the polar character of the water molecule. Experiments with nonpolar fluids like heptanor benzine showed no or only very small swelling.
初步判定这两种植物中毒力较强的活性成分主要是一些非极性或极性较弱的物质。
Finally we drew an elementary conclusion that the fairly strong poisonous components in the two plants were mainly non - polar or weak-polar substance.
还讨论了非极性和极性溶质的保留机理。
In addition, the retention mechanism of apolar and polar solute was also discussed.
非极性、弱极性和中等极性毛细管色谱柱；
The nonpolar, weak polarity and medium polar capillary vessel chromatographic column.
本法不仅适用于非极性和弱极性液体，而且也适用于强极性和缔合液体。
This method is applicable not only to non-polar and slight polar liquids, but also to strong polar and associated liquids.
用非共价法，在极性溶剂中，以丙烯酰胺作功能单体，以强极性化合物槲皮素为模板，制备了分子烙印聚合物(mip)。
A molecularly imprinted polymer (MIP) was prepared using quercetin as the template and acrylamide as the hydrogen-bonding functional monomer in a polar solvent.
非极性或低极性的溶剂适合于长碳链酯完整晶形的生长。
In the solvent with low polarity or non-polarity complete crystal of series of esters adapted to grow.
极性溶剂和非极性溶剂的两步提取法是迷迭香抗氧化剂和精油综合提取的有效方法，操作简单，容易实施。
One-step extraction with polar and nonpolar mixed solvents was a method of effective comprehensive extraction for antioxidant and essential oil of rosemary(Rosmarinus officinalis L.
酸性、碱性、极性与非极性残基，以及特定氨基酸的特殊性质。
Acidic, basic, polar, and nonpolar residues, and special properties of specific amino acids.
第二种构成，需要空间非极性，就是需要极性键的空间对称分布。
The second way to have something that is net nonpolar is to have spatially symmetric disposition of polar bonds.
前期工作中，曾发现在非极性-极性双液体系中，加入某种能引起该体系分层的盐量与其相应的分层温度之间，存在有良好的线性关系。
In previous work the linear relation between the amount of a certain salt added and the miscible temperature has been found for the non-polar-polar binary liquid system.
洗脱液以常规的顺序更换，首先用非极性溶剂，然后逐步被极性较强的所替换。
The eluent is changed in a regular manner starting with a nonpolar solvent and gradually replacing it by a more polar one.
空间对称的极性键分布，还是会导致整个分子为非极性分子。
Symmetric disposition of polar bonds still results in a nonpolar molecule.
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