脂肪链 meaning in English
aliphatic chain
Examples
- With the increase of the end - group ' s volume , the melting points and clearing points followed the same trend while the stability of liquid crystalline states became worse
随着末端基脂肪链体积的增大，熔点和清亮点具有同样的变化趋势，液晶态的稳定性变差。 - Fluorescein and porphyrin have been linked by an alkyl chain , and been firstly used as a fluorescence carrier of opto - chemical sensors . based on the principle of energy transfer , it examined the iodine in the aqueous solution with high sensitivity and wide detection range
通过脂肪链把荧光素和卟啉连接起来，并首次把它作为荧光载体应用于光化学传感器的研制，基于分子内能量转移原理检测了水溶液中的单质碘，该传感器灵敏度高，检测范围宽。 - Removing partial surfactant covering on nanoparticles reduce the permittivity of particles remarkably , but little effect on the permeability ; decreasing the aliphatic chain length of the surfactant can improve both permittivity and permeability of particles evidently . 2
脱除部分包覆在纳米粒子表面的表面活性剂，可以明显降低铁纳米粒子的介电常数而对磁导率影响不大；减小纳米粒子表面的表面活性剂脂肪链链长使粒子的介电常数和磁导率均有大幅提高。 - Based on the liquid crystal polymer theory , two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group . an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group . mixture was made of the additive and liquid crystalline polymer , which structure was identified by ftit , " ii nmr , dsc and pom
本论文根据液晶分子结构理论，选择联苯基作为介晶基元的刚性核、柔性的六亚甲基脂肪链为柔性间隔基，与丙烯酸反应，合成了两种丙烯酸酯型聚合物；以拆分的l ( - ) 2 -辛醇为手性基团合成了一种液晶手性添加剂，并将所合成的手性添加剂与液晶聚合物共混，采用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段对合成的化合物、共混物进行了表征。 - Phenyl group introducing to cholesteryl ester molecules can enhance the phase transition temperatures of the liquid crystals and their stability . an increase in the chain length for cholesteryl dicarboxylate samples reduced stability of liquid crystal phases . while coattail - like structures on the ester group of the molecules have an adverse effect to form cholesteryl liquid crystal phase
化学结构对液晶性的影响表现为：分子中引入苯环刚性结构可以提高液晶的相变温度和稳定性；脂族二羧酸胆甾醇酯中脂肪链的长度增加会降低液晶的稳定性；而末端含有燕尾结构则对液晶态的形成产生不利影响。