羧酸脂 的英文怎麼說

中文拼音 [suōsuānzhī]
羧酸脂 英文
carboxylic ester
  • 羧 : 名詞[化學] （羧基） carboxyl
  • 酸 : 酸構詞成分。
  • 脂 : 名詞1. （動植物所含的油質） fat; grease; tallow 2. （胭脂） rouge 3. （姓氏） a surname
  1. A review on application of monohydrated sodium bisulfate as catalyst in synthesis of ester, such as monocarboxylic esters, dicarboxylic esters, chloroacetates, hydroxycarboxylic esters, aromatic esters and the reusability of sodium bisulfate with

    摘要介紹了一水硫酸氫鈉在催化合成酯（如一元羧酸酯、二元羧酸酯、氯乙酸酯、羥基酸脂、芳香酸酯）中的應用及其重復催化性能。
  2. Each fatty acid consists of a hydrocarbon chain with a carboxyl group at one end.

    每個脂肪酸由一端帶有一個羧基的碳酸鏈組成。
  3. Long chain alkyl benzenes is the product of cyclization - decarboxylation - aromatization of fatty acid, with the help of clay minerals catalytic effect, which comes from bacteria, seaseed and higher plant lipid ; or the reaction product of monocylic aromatics and fatty acid alkyl group under the same conditions

    長鏈烷基苯主要是細菌、藻類和高等植物類脂化合物中脂肪酸在粘土礦物催化下發生環化脫羧再芳構化或單環芳烴與脂肪酸烷基化反應形成的產物。
  4. Saturated fatty alcohol dibasic acid ester

    飽和脂肪醇二羧酸酯
  5. Acetyl coa plays a key role in metabolism, being a precursor of the krebs cycle and glyoxylate cycle, and the starting point for synthesis of fatty acids, terpenes, and some amino acids

    它在新陳代謝的過程中扮演非常重要的角色，是三羧酸循環和乙醛酸循環的前體物質，而且還是合成脂肪酸，萜類以及一些氨基酸的起始。
  6. New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded

    闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展；同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。
  7. Synthesis and properties of carboxymethyl cellulose graft sodium acrylate copolymer

    羧甲基纖維素接枝丙烯酸鈉高吸水性樹脂的合成與性能
  8. 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。
  9. ( 3 ) volume shrinkage of composite decreases greatly with wpu increasing, even can arrive a negative number, but thermal stability is still good. ( 4 ) toughening mechanism is that : the formation of high molecular linear amino formate construct is the toughening reason ; hydroxyl - terminated pu - prepolymer and pf react to produce chemical bond effect which participate cure ; carboxyl - terminated pu - prepolymer and pf form semi - ipn which make toughened pf occur maximum

    （ 4 ）通過紅外光譜對pf / pu共混物分子結構進行的定性分析、以及掃描電鏡對沖擊斷面形貌進行的分析，可證明聚氨酯預聚物增韌酚醛樹脂的機理是：兩個體系都是由於高分子量的線形氨基甲酸酯結構而增韌；端羥基pu與pf在共固化中產生化學鍵效應，參與pf的固化；而端羧基pu則與pf形成半互穿網路而增韌。
  10. 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

    化學結構對液晶性的影響表現為：分子中引入苯環剛性結構可以提高液晶的相變溫度和穩定性；脂族二羧酸膽甾醇酯中脂肪鏈的長度增加會降低液晶的穩定性；而末端含有燕尾結構則對液晶態的形成產生不利影響。
  11. The synthesis and current application situations of efficient series of water - reducers, such as melamines, aliphatics, aminosul - phonic acids and polycarboxylates were introduced emphatically

    並著重介紹三聚氰胺系、脂肪族、氨基磺酸系和聚羧酸系等幾類高效減水劑的合成及應用現狀。
  12. The optimum conditions ( enzyme source, enzyme concentration, acid, acid concentration, reaction medium and reaction temperature, et al ) were screened out

    對脂肪酶酶源、脂肪酶濃度、羧酸、羧酸濃度、溫度、溶劑等反應條件進行篩選。
  13. The effect of different additives on the properties of water and oil absorption as well as the maximum load of wheat flour tableware was studied by using liquid paraffin and stearic acid as waterproof agents, sodium alginate and carboxymethyl cellulose sodium ( cmc - na ) as intensifier

    摘要以液態石蠟和硬脂酸作為防水劑，以海藻酸鈉和羧甲基纖維素鈉作為補強劑，研究不同添加劑對小麥粉餐具的吸水性、吸油性和最大承載等使用性能的影響。
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