这些表面活性剂具有较高的表面活性和相同的亲水基,1 ,3二氧杂环戊烷基团也有一定的亲水性。
The results showed that these surfactants have high surface activity and same hydrophilic group, and the 1,3dioxolane ring are also hydrophilic.
根据中国锡矿床产出的地质地球化学资料,划分出了三种锡矿床的地球化学系列,即亲铁系列、亲硫系列和亲氧系列。
Three geochemical series, i. e. , the siderophile, chalcophile and lithophile series, have been classified for tin deposits based on geological-geochemical data on tin mineralization in Chi-na.
分析了铝和铬亲石、亲氧的二重性及其晶体化学的依存关系。
It is studied that the duality of lithophile and oxygenphile of aluminum and chromium, and the dependence among their crystal chemistry.
聚醚改性聚硅氧烷中的有机硅链段的良好靶向作用,充分提高了聚醚链段表面迁移的效率,实现对PP的亲水改性。
The efficiency of surface migration of polyether chain segment was fully raised and hydrophilic modified on PP was implemented.
本文比较了在甲醇介质下,2-苯基吲哚(1)单重态氧反应中的捕捉反应以及2-苯基-3H-吲哚-3-酮(4)的亲核加成反应特征。
Trapping reactions in singlet oxygenation of 2-phenylindole (1) and nucleophilic addition reactions of 2-phenyl-3H-indol-3-one (4) both in methanolic media were studied comparatively.
吸水测试发现,固化后环氧预浸料的平衡吸水率虽然略微上升,但由于两亲性偶联剂的作用,其界面吸水受到明显抑制。
Normalized water sorption by gravimetric measurement showed that the interfacial debonding time of composites with the oligomeric silane is increased significantly.
另外,各类亲核试剂对环氧的开环得到了区域选择性和反式的立体选择性都较高的开环产物。
In addition, high reactivity with various nucleophiles leads to high regioselective and trans-stereospecific ring-opening products.
另外,各类亲核试剂对环氧的开环得到了区域选择性和反式的立体选择性都较高的开环产物。
In addition, high reactivity with various nucleophiles leads to high regioselective and trans-stereospecific ring-opening products.
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