酯化作用 的英文怎麼說

中文拼音 [zhǐhuàzuòyòng]
酯化作用 英文
esterification
  • 酯 : 名詞[化學] （有機化合物的一類） ester
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  1. The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition

    系統研究了ba 、甲基丙烯酸甲酯（ mmal苯乙烯舊t ）以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素，結果表明： ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。
  2. Activation of calix 6 arene in the ring - opening polymerization of - caprolactone catalyzed by rare earth aryloxide catalysts in low temperature

    己內酯低溫開環聚合中的活化作用
  3. 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。
  4. Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso - amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid

    摘要以活性炭固載磷鎢酸作為催化劑，用沒食子酸與異戊醇直接酯化合成了沒食子酸異戊酯。
  5. Isopropylidene glycerol is prepared by condensation of acetone with glycerol, thereafter it was esterified with octanoyl chloride in pyridine as catalyst, and finally the latter was decomposed with boric acid

    摘要以甘油和丙酮為原料制得異丙叉甘油，其與辛酰氯在吡啶催化下酯化，再經硼酸作用下分解得到單辛酸甘油酯。
  6. In this research, the plant esterase of wheat and - ethanoic acid naphthalene ester were taken as materials to inspect the relation between the wheat esterase and the organic phosphorus, ten linearity equations were established which expressed the esterase vigor and the organic phosphorus density logarithm with the change of the numerical value of ultraviolet resorption, and the monotony range and the extremum of the function were confirmed

    摘要本研究以小麥為植物酯酶的酶源， -乙酸萘酯為底物，考察了小麥酯酶與有機磷農藥之間作用的關系，建立了10個以吸光值變化表示的酶活性與有機磷農藥濃度對數之間的線性方程，並確定了函數的單調區間和極值。
  7. The catalytic mechanism of expansible graphite in esterification and the causes behind the lower esterification were discussed

    推斷了可膨脹石墨在乙酸乙酯合成中的催化作用機理，分析了可膨脹石墨催化乙酸乙酯合成產率偏低的原因。
  8. Phytosterol and phytostanol have been converted to the corresponding fatty acid esters via lipase - catalysed esterification with fatty acid or transesterification with mythyl esters of fatty acid or triacylglycerols

    摘要植物甾醇和植物甾烷醇在脂肪酶催化作用下同脂肪酸酯化或同脂肪酸甲酯或三酰甘油酯交換可形成植物甾醇酯和植物甾烷醇酯。
  9. Based on the extensive studies of subtilisin - like protease ( prl ) of metarhizium anisopliae, extracellullar serine protease is suggested to be a key enzyme involved in the fimgal penetration to invertebrates. the investigation of serine protease in the nematode infected by owvtl may help to understand the mechanism of nematophagous fimgi as biological control agents. a 3l kda serine protease was isolated and purified from the liquid culture of h rhossiliensis owvtl challenged with nematode panagrellus redivivus

    本研究利用線蟲誘導下owvt - 1菌株液體發酵，通過粗分級分離、離子交換層析和凝膠過濾層析分離提純了一個分子量為31kda的絲氨酸蛋白酶，生物學測定表明其對大豆胞囊線蟲二齡幼蟲具有致死作用，同時測定了該酶理化特性，酶活力在75附近酶活力最高，隨著ph的增加酶的穩定性升高，與膽堿酯酶具有相似的ph曲線，對特異性底物aape （ suc - ala - ala - pro - glu - pna ）具有作用， ssi和ci - 2抑制該酶的活性。
  10. Vanadate, a potent ptpase inhibitor, locks adipocyte differentiation at an early stage in the program and leds to the accumulation of p - c - crkii, a phosphotyrosyl protein that is a substrate for ptpase ha2

    研究發現一種強烈的磷酸酯酶抑制劑- -釩酸鈉能夠作用於脂肪細胞的分化早期過程從而抑制其分化，並使一種ptpha2的底物即酪氨酸磷酸化的蛋白質p - c - crkii累積。
  11. The subsidiary company, yongan fuhuaxian articles supply factory, can produce 191 serial unsaturated polyester resin which is a clear and heavy - bodied liquid. it is made by the method of the solvation of linear unsaturated polyester resin, which is condensated and polymerized after the esterification of biatomic acid and diatomic alcohol, into phenylethylene solvent, which is a crosslinking active monomer

    所屬子公司永安市福化纖用品廠生產的191系列不飽和聚脂樹脂，系由二元酸酐和二元醇及其縮合物經酯化反應，縮聚成線性不飽和聚酯樹脂，然後經具有交聯作用的活性單體溶劑苯乙烯所溶解而配製成的透明粘稠液體。
  12. In the volume change study, we found appropriate temperature is helpful for shrinkage control, and different lpas have different shrinkage control effects due to their dipole moment, tg, miscibility with upr and morphology after blending. there existed an optimal concentration range of poly ( vinyl acetate ) based lpas for shrinkage control. lpa was effective for shrinkage compensation in this range, on the other hand, lpa only acted as filler and the low profile effect vanished out of this range, however, for polystyrene based lpa, the more concentration the better shrinkage control

    在膨脹研究中，發現適當的溫度條件更有利於upr達到好的收縮控制效果；不同類型的lpa隨著偶極矩、玻璃化溫度、與upr的相容性、與upr的混合形態的不同，表現出不同的收縮控制效果；聚醋酸乙烯酯類的lpa - a存在一個最佳收縮控制的濃度范圍，在這個范圍之內， lpa起到補償收縮的作用；而在這個范圍之外， lpa的作用僅相當于填料，不能起到收縮控制。
  13. 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。
  14. A butylated hydroxyanisole or butylated hydroxytoluene or mixtures thereof within the limits specified in part ii of this schedule may be used in conjunction with propyl gallate or octyl gallate or dodecyl gallate or mixture thereof within the limits specified, provided that the total amount of antioxidant shall not exceed, in the case of anhydrous oils and fats and vitamin oils and concentrates, and partial glycerol esters, 300 parts per million, in the case of butter for manufacturing purposes, 240 parts per million and in the case of essential oils and isolates from the concentrates of essential oils, 1000 parts per million

    A不超逾本附表第ii部所指明分量的經丁化作用的羥基茴香醚或經丁化作用的羥基甲苯或其混合物，可與不超逾指明分量的丙基?酸鹽或辛基?酸鹽或十二烷基?酸鹽或其混合物同時使用，但添加於無水食油及脂肪維他命油及其濃縮物及部分丙三醇酯的抗氧化劑總分量，不得超逾百萬分之300 ，添加於作製造用途的牛油的抗氧化劑總分量，不得超逾百萬分之240 ，而添加於香精油及香精油濃縮物的分離物的抗氧化劑總分量，則不得超逾百萬分之1000 。
  15. The development of research on synthesis of butyl butyrate and the catalysis of sulfonic acid, inorganic salt, solid superacid, heteropoly acid, enzyme catalysis compound are summarized

    摘要綜述了磺酸、無機鹽、固體超強酸、雜多酸、酶催化體系等對合成丁酸丁酯的催化作用及研究進展。
  16. The catalytic properties of zinc oxide catalysts from zinc oxide, zinc acetate calcined at 600 and zinc carbonate prepared through deposition, in the synthesis of dimethyl carbonate by alcoholysis of urea were studied

    摘要研究了在600煅燒氧化鋅、醋酸鋅和沉澱法制得碳酸鋅而得到的氧化鋅催化劑，對尿素醇解制備碳酸二甲酯的催化作用。
  17. Synthesis of dioctyl phthalate catalyzed by so2 - 4 al2o3 solid acid

    3固體酸對鄰苯二甲酸二辛酯的催化作用
  18. Experiment shows that tpsl gene can endow organism the ability of synthesis trehalose, the dephosphorylation of the trehalose - 6 - phosphate is not special, and it can be replaced by other phosphatases. the tpsl gene from saccharomyces cerevisiae was cloned by pcr amplification

    實驗證實tps1基因就可以使生物體獲得產生海藻糖的能力，酵母的海藻糖合成酶復合體中6 -磷酸-海藻糖的脫磷酸化作用是非特異性的，它可由生物體內的其它酯酶所代替。
  19. The catalytic properties of solid super acid for the synthesis of dioctyl melate

    固體超強酸對合成馬來酸二辛酯的催化作用
  20. This article aims at summarizing the development of research on synthesis of tributyl citrate and the catalysis of sulfonic acid, inorganic salt, solid superacid, heteropoly acid, rare earth compound

    綜述了磺酸、無機鹽、固體超強酸、雜多酸、稀土化合物等催化體系對合成檸檬酸三丁酯的催化作用及研究進展。
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