Surface active agents - determination of the water number of alkoxylated products ; german version en 12836 : 2002 表面活性剂.烷氧基化产品的水分子数测定;德文版本e
Surface active agents - alkoxylated derivatives - determination of hydroxyl value - n - methyl imidazole method 表面活性剂.烷氧基化衍生物.羟基值的测定. n -甲基咪唑法
Non - ionic surface active agents - polyalkoxylated derivatives - determination of hydroxyl value - phthalic anhydride method 非离子表面活性剂聚烷氧基化衍生物羟值的测定邻苯二甲酸酐法
Surface active agents - alkoxylated derivatives - determination of hydroxyl value ; n - methyl imidazole method ; german version en 13926 : 2003 表面活性剂.烷氧基衍生物.羟基值的测定. n -甲基咪唑法
A series of triarylphosphine ligands with alkoxyl groups have been prepared through five steps from commercially available 3 - bromophenol by a new synthetic route 摘要从间溴苯酚出发，利用新的合成方法经五步反应合成了一系列具有不同烷氧基的芳基膦配体。
Recent advances in direct synthesis of trialkoxysilanes from silicon and alcohols were reviewed , including the raw material , solvent , catalysts and reaction conditions 摘要综述了硅与醇直接合成三烷氧基硅烷所用的原料、溶剂、催化剂以及催化反应的工艺条件。
Three derivatives of alkoxy phthalocyanine pb were synthesized as optical limiting materials . the structures of products were characterized by means of ir , hnmr spectra and elementary analysis . and then , the phthalocyanine pb / polymethy methacrylate ( pmma ) were prepared 合成了三种烷氧基取代的金属酞菁铅类光限幅材料，利用元素分析、红外光谱、核磁共振氢谱等方法，验证了化合物的分子结构。
In order to research the application of nonlinear optical materials for optical limiting , four derivatives of alkoxy metal phthaloyanines were synthesized . the structures of the products were characterized by means of ir . 1hnmr spectra and elementary analysis 为探索有机非线性光学材料在光限幅方面的应用，本论文合成了四种烷氧基取代的金属酞菁化合物，并利用元素分析、红外光谱、核磁共振氢谱等方法，验证了化合物的分子结构。
Abstract : benzotriazole is a good corrosion preventive compound that can reacts with aldehyde and alcohol . the addition reaction is used to synthesize eight alkoxyalkyl benzotriazoles by benzotriazole , propionaldehyde and methanol , ethanol , propanol , iso - propyl alcohol , n - but anol , iso - butanol , sec - butanol , tert - butanol . their structures were confirmed by elemental analysis , ir and 1hnmr . the mechanism of addition reaction was discussed 文摘:利用苯骈三氮唑、丙醛分别和甲醇、乙醇、丙醇- 1 、丙醇- 2 、丁醇- 1 、丁醇- 2 、 2 -甲基丙醇- 1 、 2 -甲基丁醇- 2反应合成了八种烷氧基烷基苯骈三氮唑，通过元素分析、 ir 、 1hnmr对上述化合物的结构进行了测定，并讨论了这类加成反应的历程。
5 , both melting point ( tm ) and isotropization temperature ( tj ) of all the three series compounds change regularly with the carbon numbers of the end alkoxy group increased . there is a gradual increase in smectic phase length and in the smectic - nemetic transition temperature . at the same time there is a gradual decrease in nemetic phase length 五，三个类型化合物16ia至16id 、 16ila至16lid 、 17ia至17id 、 17ila至17lid 、 18ia至18id和18ila至18lid的熔点和液晶态的清亮点均化合物分子中末端烷氧基增大逐渐降低；近晶相的温度范围和近晶相一向列相转变温度逐渐增大，而向列相的温度范围递减。
