烷氧基化的 的英文怎麼說
中文拼音 [wányǎngjīhuàde]
烷氧基化的
英文
oxyalkylated-
Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions.
醛類和其他的羰基化合物,由於烷氧基離子的穩定性,最容易通過本質上是負離子的機理進行聚合。Direct alkoxylation of aromatic compounds is virtually unknown.
事實上還不知道芳香族化合物的直接烷氧基化的方法。Epoxy structures can be similarly identified, provided they are not fully alkylagted.
沒有完全烷基化的環氧結構也可以同樣地加以鑒識。R" is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
R」是取化基,如乙氧基、甲氧基及它們的環氧和烷氧同系物或鹵基。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
五,三個類型化合物16ia至16id 、 16ila至16lid 、 17ia至17id 、 17ila至17lid 、 18ia至18id和18ila至18lid的熔點和液晶態的清亮點均化合物分子中末端烷氧基增大逐漸降低;近晶相的溫度范圍和近晶相一向列相轉變溫度逐漸增大,而向列相的溫度范圍遞減。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,並進行了化學結構和液晶性能的表徵。Sodium ethoxylated alkyl sulfate - determination of unsulfated matter content
乙氧基化烷基硫酸鈉未硫酸化物含量的測定Surface active agents - determination of the water number of alkoxylated products
表面活性劑.烷氧基化產品的水數測定Sodium ethoxylated alkyl sulfate - determination of total active matter content
乙氧基化烷基硫酸鈉總活性物含量的測定And they are different with the common liquid crystal compound in the molecular structure, property and application function. up to now, people have more interest on the them in the field of transferring signal and information at the molecular level. starting from the molecular design, three novel series of schiff base type liquid crystal crown ethers were synthesized
從分子設計出發,設計併合成了三類新的席夫堿型液晶冠醚化合物,根據分子中冠醚環和木端烷氧基的不同和大小以及化合物的構型將其分為六個系列, 24個化合物。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
合成了三種烷氧基取代的金屬酞菁鉛類光限幅材料,利用元素分析、紅外光譜、核磁共振氫譜等方法,驗證了化合物的分子結構。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
為探索有機非線性光學材料在光限幅方面的應用,本論文合成了四種烷氧基取代的金屬酞菁化合物,並利用元素分析、紅外光譜、核磁共振氫譜等方法,驗證了化合物的分子結構。Non - ionic surface active agents - polyalkoxylated derivatives - determination of hydroxyl value - phthalic anhydride method
非離子表面活性劑聚烷氧基化衍生物羥值的測定鄰苯二甲酸酐法Organosilicon polymer ( silicone ) has the potential application in many industry areas as new material owing to its excellent properties
摘要以聚硅氧烷為基礎的有機硅材料作為一種新型材料,具有特殊的物理化學性能,在許多工業領域中得到了廣泛應用。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:利用苯駢三氮唑、丙醛分別和甲醇、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反應合成了八種烷氧基烷基苯駢三氮唑,通過元素分析、 ir 、 1hnmr對上述化合物的結構進行了測定,並討論了這類加成反應的歷程。Surface active agents - determination of the water number of alkoxylated products ; german version en 12836 : 2002
表面活性劑.烷氧基化產品的水分子數測定;德文版本eSodium ethoxylated alkyl sulfate - determination of the mean relative molecular mass
乙氧基化烷基硫酸鈉平均相對分子量的測定Surface active agents - sulfated ethoxylated alcohols and alkylphenols - determination of total active matter content
表面活性劑乙氧基化醇和烷基酚硫酸鹽活性物質總含量的測定Surface active agents. sulfated ethoxylated alcohols and alkylphenols. determination of content of unsulfated matter
表面活性劑.硫酸化乙氧基化醇和硫酸化乙氧基化烷基酚.非硫化物含量的測量Recent advances in direct synthesis of trialkoxysilanes from silicon and alcohols were reviewed, including the raw material, solvent, catalysts and reaction conditions
摘要綜述了硅與醇直接合成三烷氧基硅烷所用的原料、溶劑、催化劑以及催化反應的工藝條件。分享友人