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- Elimination of an alkyl chain substituted on an aromatic ring results in the appearance of free radicals. 在一芳香环上一个取代烷链的消失,结果出现自由基。
- The results showed that the biodegradability of PAEs decreased with the increase of the carbon number of alkyl chain. 结果表明,邻苯二甲酸酯的好氧生物降解性随烷基链含碳数的增加而降低;
- In contrast, the BP-5 molecule with short alkyl chain forms spherical surface micelle at the interface. 含有较短烷基链的BP-5分子在液/固界面上形成球状的表面胶束;
- And the length and branching of alkyl chain in the hydrophobic group are main structure factors affecting surfactants' efficiency and effectiveness. 而表面活性剂亲油基的碳链长度和亲油基的支化是影响效率和效能的主要结构因素。
- The low-viscosity ILs were rationally designed and synthesized.In addition, serial ILs based on imidazolium with long alkyl chain were synthesized. 通过阴离子交换的方法,得到了以氯离子、溴离子、碘离子、六氟磷酸根和四氟硼酸根等为阴离子的一系列离子液体。
- When the length of alkyl chain increases, their water solubility decrease quickly and limits the dyeing effect and surfactivity partly. 但随着碳链长度的增加,它们的水溶性大大降低,部分地限制了其染色性能和表面活性。
- And there is 53.37% stearic acid and 9.19% azo contained alkyl chain in the weight of ADW.The left weight belongs to the hydrophilic polymer backbone. 另外;该聚合物中含有重量比为53.;37%25的硬脂酸尾链和9
- The viscosity and polarity of the medium can be increased by theadded SDS while CTAB acts only as a salt due to its alkyl chain coiling. 但CTAB,则由于其烷基链的绻曲,只起到盐的作用。高温虽然破坏了碱基所诱导产生的振动结构,但对激基缔合物有利。
- Dialkyl quaternary ammonium salts can be used as fabric softeners with high performance, their biodegradation can be improved by inducing unsaturated bond into their alkyl chain. 摘要双烷基季铵盐类产品是一种性能优良的织物柔软剂,如果在烷基链中引入不饱和键,就会提高其生物降解性。
- The results showed that dyes with strong electron-withdrawing group, asymmetrical structure and short alkyl chain substituents have better bleaching properties. 结果表明,油溶性染料分子中,取代基团的吸电性强,不对称性大,取代基含脂肪链短的,其漂白性能好。
- The results show that the number of the gauche conformation is increasing as the temperature increasing.When it is coming to the isotropic phase,the alkyl chain is in disorder. 结果表明在液晶分子中象羰基这样的偶极矩较大的极性基团,对分子所处的相态分子间的相互排列比较敏感。
- The results showed that their surface tension decreased with an increasing alkyl chain length(n) at the 1-position of the cation. The values of surface tension covered a relatively wide range from 48.0 mJ/m2(PF6) to 35.7 mJ/m2(PF6). 采用Wilhelmy白金板法在室温25℃测定了离子液体的表面张力;随着1位氮上取代基碳链的增长;表面张力从[C4mim]PF6的48.;0 mJ/m2逐渐下降到[C7mim]PF6的35
- With ethidium bromide (EB) as probe, it was found by fluorescence spectra that DNA conformation was more compacted as the alkyl chain of APG increased. However, even C 12APG could only partially compact DNA. 以溴化乙锭为探针 ;荧光光谱法研究证明 ;随APG链长增加 ;DNA构象缩拢程度加大 ;但即使是C12 APG也仅能使DNA构象部分缩拢 ;推测DNA仅是部分链段对APG胶束进行包裹 ;其它链段仍处于伸展状态 .
- Whereas every DCOQA molecule is surrounded by two alkyl chains and two quinacridone cores in crystal. 而在DCOQA晶体结构中,每个喹吖啶酮中心被毗邻分子的两个辛基链和两个喹吖啶酮基团包围。
- So we can get to the result that every molecue of ADW has 80.5 stearic chains and 10.5 azo contained alkyl chains in average. 并可以由此进一步计算出平均每个ADW聚合物分子(分子量为42375)含有80.;5个硬脂酸尾链;10
- The molecular structure of microcrystalline wax can be regarded as cycloalkanes with 1 or 2 rings and various long alkyl chains. 微晶蜡的平均分子结构可看作是带不同长度与个数的长侧链的含1个或2个环的环烷烃。
- Moreover, the results of IR spectrum and apolar component of surface free energy showed that the alkyl chains of OTS tilted on the surface of PTW after the modification. IR分析和色散分量测定表明,改性后OTS的烷基链倾斜在PTW表面。
- N-alkylacrylamide, including DDA, DDMA, HDA, HDMA, is a kind of amphiphiles which have long alkyl chains, and they have the ability of forming stable films. N-烷基丙烯酰胺DDA,DDMA,HDA,HDMA是一类长链两亲性分子,成膜性能较好。
- Effect of alkyl chain on N-alkyl dimethyl betaine 烷基碳链对N-烷基二甲基甜菜碱性能的影响
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。