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- At the sam time, hydroxy fatty acids with longer molecular chain length are superior to those with shorter molecular chain length in terms of friction-reduction and antiwear behaviors. 烷基链较长的羟基廿二酸比羟基十八酸的减摩抗磨性能略好。
- molecular chain length 分子链长
- The chain length must also be specified. 链条长度也必须指定。
- HOMO-LUMO gaps decreased withincreasing chain length. 螺旋双芴基噻吩齐聚物 HOMO-LUMO 带隙随链长增加而减小;
- The calculation formulae which could be used to obtain diad concentration from the peak intensities of carbon spectra ,average block length ,average number of block and the microstructure composition of the molecular chain were derived . 推导出由峰强度求取二元组浓度、平均链段长度、链段平均数和分子链微观组成的计算公式,计算结果表明,不同胶样的序列结构有一定差别,乳聚SBR的微观组成即使十分接近,苯乙烯长嵌段含量也会有较大差别;
- A series of dimmer acid esters were synthesized by using dimmer acid and different chain length alcohols, and the molecular structures of synthetic dimmer acid ester were identified. 以二聚酸和不同链长的醇为原料,合成了一系列二聚酸酯并对其结构进行表征;
- The length of the chain molecule is proportional to the kinetic chain length. 链分子的长度与动力学链长成正比。
- IR ananlysis shows that graft copolyxnerization took place on the tertiary carbon atom of PP molecular chain. 红外光谱分析表明，丙烯酸接枝在聚丙烯大分子链的叔碳原子上。
- After organic modification, the interval between MMT layers expanded evidently, and the longer the length of organic compound molecular chains, the lager the interval of layers. 蒙脱土有机改性后，层间距显著扩大。有机分子链越长，层间距越大，同时带有支链的有机分子对蒙脱土的层间距也有较明显的影响。
- Polymers consist of long molecular chains of covalently bonded atoms. 高聚物都是由共价链联接原子而形成的长链分子所组成。
- Metachromasia, electrophoresis, and gel chromatography have shown that the charge of MPS and its chain length remain unchanged. 利用药物的变色反应性，电泳和凝胶色谱法显示MPS(多磺酸粘多糖)的电荷及其链长没有改变。
- For the same in PO/EO value, thesurface tension decreases with the increase of the chain length of EO. PO/EO 相同,EO 链段越长,表面张力越低。
- The mean relative reactivity of three kinds of protons towards chlorination is R(CH)>R (CH2) >R(CH3), and the chlorine atoms are distributed homogeneously in the molecular chain. 伯、仲、叔三种氢的相对氯化活性为R(CH)>R(CH_2)>R(CH_3),并乒表明氯化反应比较均匀地发生在无规聚丙烯分子链上。
- For the same in the chain length of EO, the surface tensiondecreases with the increase of PO/EO value. EO 链段长相同,PO/EO 越大,表面张力越低;
- The experimental results indicate that the polyethylene synthesized with rare earth cata-lyst shows characteristics of extended molecular chain. 用各种物理方法初步证明,稀土聚乙烯熔点较高的原因可能与其具有伸展链结晶结构有关。
- Its chain length influencesthe rheological and foam properties,the solubilization of sebum and interfacial tention. 其链长决定了流变学和泡沫性质，皮脂的增溶性和界面张力；
- When this process occurs, molecular chains can orient in the fiber direction. 在此处理过程中，分子键能沿纤维轴向定向排列。
- It is obvious that there is an optimum chain length of diblock copolymer for minimizing the mean domain size. 所以，加入等量的嵌段共聚物，存在一个最佳的链长使体系的相区尺寸最小。
- The TEM observation indicated the molecular chain of BR was intercalated into the OMMT layers, and OMMT was dispersed in BR on nano-scale. 结果显示，BR大分子链插入到OMMT片层中，OMMT在橡胶中为纳米级分散；
- Increasing the chain length of the PGA chain, large irregular micelles were obtained. 聚合物脱保护后得到两亲性含糖共聚物。
