酯鍵 的英文怎麼說

中文拼音 [zhǐjiàn]
酯鍵 英文
ester bond
  • 酯 : 名詞[化學] （有機化合物的一類） ester
  • 鍵 : 名詞1 [機械工程] （使軸與齒輪、皮帶輪等連接並固定在一起的零件） key 2 [書面語] （插門的金屬棍子）...
  1. Lipoprotein lipase ( lpl ) is a critical enzyme of catabolic metabolism in lipoproteins, its major function is the hydrolysis of the core triglycerides of circulating chylomicrons and very low density lipoproteins

    脂蛋白脂肪酶是脂蛋白分解代謝的關鍵酶，其主要功能是水解cm和vldl這些脂蛋白中的甘油三酯核心。
  2. It was the first time that the nano - ceria and aqueous polyurethane was combined together, the microemulsion of aqueous polyurethane coating ceria nanoparticles was obtained and characterized. the results showed that the ceria is combined with polyurethane by electrostatic action, chemical bond and absorption media action

    首次將稀土納米ceo2和水性聚氨酯復合，得到了包覆有ceo2納米粒子的水性聚氨酯微乳液，表徵結果表明， ceo2和聚氨酯通過靜電作用、化學鍵作用和吸附層媒介作用結合在一起的。
  3. First, a terminal double bond was introduced into 3 - amino - 9 - ethylcarbazole ( aec ) via methacryloyl chloride to obtain the compound, 3 - ( n - methacryloyl ) amino - 9 - ethylcarbazole ( mec ). second, mec was copolymerized with butyl methacrylate to prepare the mec - immobilized polymer particles. the resultant polymer particles were used as a fluorescence probe, which was almost free of dye leaching, and had higher photostability in comparison with free aec

    首先利用甲基丙烯酰氯向3 -氨基- 9 -乙基咔唑（ aec ）分子中引入末端雙鍵，得到帶末端雙鍵的熒光指示劑3 - （ n -甲基丙烯酰基）氨基- 9 -乙基咔唑（ mec ） ，然後通過乳液聚合技術將mec共價固定到聚甲基丙烯酸丁酯基體上，制得一種共價固定了mec的聚合物顆粒。
  4. [ objective ] heparin is linear polysaccharides consisting of repeating disaccharide unit backbones of n - acetyl - d - glucosamine that is linked to d - glucuronic acid. the disaccharide repeat unit can be modified to include n - and o - sulfation ( 6 - o and 3 - o sulfation of the glucosamine and 2 - o sulfation of the uronic acid ). these specific sulfate patterns are involved in the interaction of heparin with other molecules

    [目的]肝素是由n -乙酰葡萄糖胺與d -葡萄糖醛酸以1 4糖苷鍵連接起來的重復二糖單位組成的線性多糖，葡萄糖胺可帶有n -硫酸基團，可在c6上形成0 -硫酸酯，帶有硫酸基團的獨特結構參與了肝素與其他分子的相互作用。
  5. Tannin acyl hydrolase ( tannase ) is an enzyme that hydrolyzes the ester bonds of tannic acid to produce gallic acid and some other compounds. tannase is widly used in beverage, food, leather and chemical industry

    單寧酶（ tannase ）是一種水解酶，能夠水解沒食子酸單寧中的酯鍵和縮酚酸鍵，生成沒食子酸和其它化合物。
  6. Thisarticle studies the synthetic process of di - n - hexyl adipate. it discusses the kinds ofnon - acidic catalyst used in the process. it points out the characteristic and the keytechnology of the synthesis, and the application of the product in pvb resin

    研究了己二酸二正己酯的合成方法，介紹了己二酸二正己酯合成中的非酸催化劑的種類，討論了工藝特點、工藝關鍵以及產品與pvb樹脂配套應用檢驗結果。
  7. The article analyze the concrete drying shrinkage mechanism, find the major factors of affecting the drying shrinkage, analyze the lack of shrinkage reducing agent, who be of low molecular weight and line chain, design a new shrinkage reducing agent ? ? shrinkage reducing agent of poly - acrylate. the shrinkage reducing agent of poly - acrylate is mainly composed of crylic acid 、 cinnamene 、 poly - glycol 、 solicitating agent 、 chain transferring agent and activator, which come by these processes of polymerization 、 esterifing and neutralization to form a pectinate polymer, which have a high molecular weight and many poly - oxidative alkenes

    論文分析了混凝土乾燥收縮的機理，確定了影響乾燥收縮的關鍵因素，分析已有低分子量的、直鏈型減縮劑的不足，設計了一種新型的減縮劑? ?聚丙烯酸鹽類減縮劑，其主要由丙烯酸、苯乙烯、聚乙二醇、引發劑、鏈轉移劑、催化劑等經過聚合、酯化和中和反應，生成一種高分子量的、含聚氧化烯鏈的聚合物。
  8. Cleavage of phosphide ester linkage

    磷酯鍵裂解
  9. The theory hypothesis of " pore restriction " is first proposed in this paper. during polymerization, one end of linear molecule inserts the channels of zeolite to form hard end through chemical bond or supermolecule acting force, the other end forms soft end through condensing or polymerizing with other monomer molecule. on the basis of the theory hypothesis, a kind of novel pattern of organic - inorganic composite materials - pu / zeolite composite materials - has been designed

    本文首次提出了「孔約束」的理論假說，即在高分子材料聚合過程中，線型分子的一端通過化學鍵或超分子作用力插入分子篩的孔道中形成硬端，而另一端則與其它單體分子縮合或聚合形成高分子材料的軟端；在此假說的基礎上，設計了一類孔約束型有機?無機復合高分子材料的新模式，即聚氨酯/沸石分子篩復合材料。
  10. The utilization of organosilicon which has higher bond energy and lower surface energy to modify the acrylate latex can markedly improve and enhance those properties mentioned above for acrylate polymers, and to date, it has become one of the most important research directions in this field

    利用鍵能較高、表面能較低的有機硅組分改性丙烯酸酯乳液，提高丙烯酸酯聚合物的耐高、低溫性及耐水性能，已成為丙烯酸酯乳液改性的重要方法。
  11. ( 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。
  12. In this paper, a new class of concrete high performance water reducer ( hpwr ) was designed from chemical classification of high performance wra, working principle and unit structure model of poly - carboxylate series wra. the comb - like copolymer structure of hpwr was " carboxylic group - ether link - ester link ". the synthetic chemical materials was polyethylene glycil, acrylic acid and methyl - metacrylic acid ester

    本文從高性能減水劑的化學結構、作用機理以及聚羧酸類減水劑的單元結構模型出發，設計出國內所沒有的一類新型高性能減水劑? ? 「羧酸?醚鍵?酯鍵」為單元結構模型的梳型分子結構的減水劑共聚物，並確定了以聚乙二醇（ peg ）系列、丙烯酸（ aa ） 、甲基丙烯酸甲酯（ mma ）為合成該類減水劑的主要化學原料。
  13. Fluorocarbon paint paint fluorocarbon coating, fluororesin coating : coating, coatings with the introduction of the element fluorine - - negative, fluorocarbon bond energy, and possess exceptional properties : weatherability, heat resistance, low temperature resistance, chemical, but not unique viscosity and low friction, fluoride coatings in the construction, chemical industry, electrical electronics industry, machinery industry, the aerospace industry, household goods in various fields has been extensively applied to become acrylic coatings, polyurethane coatings, silicone coating and other high - performance coatings, the highest performance coatings brands

    氟碳油漆漆、氟碳塗料、氟樹脂塗料：在各種塗料之中，氟樹脂塗料由於引入的氟元素電負性大，碳氟鍵能強，具有特別優越的各項性能：耐候性、耐熱性、耐低溫性、耐化學藥品性，而且具有獨特的不粘性和低磨擦性，氟塗料在建築、化學工業、電器電子工業、機械工業、航空航天產業、家庭用品的各個領域得到廣泛應用，成為繼丙烯酸塗料、聚氨酯塗料、有機硅塗料等高性能塗料之後，綜合性能最高的塗料品牌。
  14. Key are conductive fibers made of polymers doped with additives, such as camphorsulfonic acid, that can conduct charge

    關鍵即在於把聚酯化物以導電性的添加物（例如樟腦磺酸）處理過，而成為具傳導性的纖維。
  15. Abstract : the preparation conditions of unsaturated polyester ( up ) resins modified by pet were introduced in this paper. the copolymerization mechanisms of the synthesis of up resins from cis - and trans - anhydride were researched. the relationship between the modified resins activities and the structure of unsaturated acids were also discussed. the reason for the differences of the exothermal curves of the two resin systems was that the activity of the cis - and trans - unsaturated bonds was different from each other

    文摘:本文研究了由聚酯改性合成不飽和聚酯樹脂的反應機理和工藝條件，討論了改性樹脂反應活性與不飽和酸結構之間的關系，解釋了順、反式雙鍵結構對改性樹脂固化放熱特性和反應活性不同的原因。
  16. Octadecyl and other alkyl - bonded silica gels are most widely used for these purposes

    為了實現這一目的，乙酸十八醇酯和其他烴鍵硅膠得到了廣泛應用。
  17. On the basis of anal zing structure - activity relationship, the key points and solving methods of synthesizing brassinosteroids are introduced from the synthesis of matrix - cycle and introducing side chain

    在分析油菜甾醇內酯類植物生長調節劑結構與活性關系的基礎上，從母環的合成和側鏈的引入兩個方面詳細介紹了該類化合物的合成關鍵及解決方法。
  18. It is the important equipment which produces unsaturated polyester resin, phenolicaldehyde resin, epoxy resin, abs resin and oil paint

    本全套裝置是用於生產不飽和聚酯樹脂酚醛樹脂環氧樹脂abs樹脂油漆的關鍵設備。
  19. It is proposed that in order to improve the production process for 1, 3 - propanediol, it should further enhance the technique level, decrease the production cost and make ptt has competitive advantage compared with pet, pbt, and pa66, which is the key to produce 1, 3 - propanediol at large scale

    提出1 ， 3 -丙二醇生產工藝的改進方向在於進一步提高技術指標，降低生產成本，使得下游ptt聚酯與pet 、 pbt和pa66相比較更具有競爭優勢，這是1 ， 3 -丙二醇形成規模化生產的關鍵。
  20. ( iso ) thiocyanate method is also called schlack - kumpf degradation. we spend much time on the derivatizing reagent which is extremely crucial to this method. four derivatizing reagents that seemed theoretically practical have been introduced, after thoroughly invest igation of them, two of which are practical and can derivatizing the amino acids to their corresponding thiohydantoins : ( 1 ) tributylsilyl isothiocyanate ( tbus - itc ) ; ( 2 ) triphenylgermanium isothiocyanate ( tpge - itc )

    （異）硫氰酸法又稱為schlack - kumpf降解，本文在關鍵的偶聯試劑方面進行了不懈的努力，先後對理論上有可能成為偶聯試劑的四種化學試劑進行了摸索，最後確定了其中兩種是可行的： （ 1 ）三丁基硅異硫氰酸酯（ tbus - itc ） ； （ 2 ）三苯基鍺異硫氰酸酯（ tpge - itc ） 。
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