烯醇化作用 的英文怎麼說
中文拼音 [xīchúnhuàzuòyòng]
烯醇化作用
英文
enolization-
Using bf3 - et2o as a catalyst, the title compound was synthesized from allyl alcohol and epichlorohydrin by a series reaction included addition and cyclization
烯丙醇和環氧氯丙烷在三氟化硼乙醚絡合物的催化作用下進行加成和環化反應制得標題化合物。It is also used as adhesion agent to replace starch. pva is widely used in textile, paper making, building materials, packing, glass, and medicine. good character of service has been displaying when it is used as textile warp size, fabric finishing agent, reagent and additive in polymerization for industry of fine chemicals, adhesion agent for construction coating, and packing material film
聚乙烯醇是一種水溶性高分子聚合物，它具有化學性能穩定溶解性能良好粘著力大等優點，可用作聚合反應的乳化劑和分散劑，同時可取代澱粉等作為膠粘劑，廣泛應用於紡織造紙建築材料包裝玻璃醫藥等行業，在作為紡織用經紗漿料織物整理劑精細化工用聚合物助劑建築塗料用粘合劑以及製成薄膜後作為包裝材料等方面，日益顯示出其良好的使用性能。It is also used as adhesion agent to replace starch. pva is widely used in textile, paper making, building materials, packing, glass, and medicine. sound character of service has been displaying when it is used as textile warp size, fabric finishing agent, reagent and additive in polymerization for industry of fine chemicals, adhesion agent for construction coating, and packing material film
聚乙烯醇pva是一種水溶性高分子聚合物，它具有化學性能穩定溶解性能良好粘著力大等優點，可用作聚合反應的乳化劑和分散劑，同時可取代澱粉等作為膠粘劑，廣泛應用於紡織造紙建築材料包裝玻璃醫藥等行業，在作為紡織用經紗漿料織物整理劑精細化工用聚合物助劑建築塗料用粘合劑以及製成薄膜後作為包裝材料等方面，日益顯示出其良好的使用性能。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。Granular anhydrous calcium chloride can be used as drying agent for drying nitrogen, oxygen, hydrogen, and sulfur dioxide gases. it also can be used as dehydrating agent in producing alcohol, ester, ether and propylene resin
無水氯化鈣可用作多用途的乾燥劑脫水劑，如用於氮氣氧氣氫氣氯化氫二氧化硫等氣體的乾燥，在生產醇酯醚和丙烯樹脂時用作脫水劑。Ppsa and tkta are the key genes in central metabolism of aromatic amino acids biosynthesis. ppsa encoding phosphoenolpyrucate synthetase a ( ppsa ) which catalyzes pyruvate into pep ; tkta encoding transketolase a which plays a major role in erythrose - 4 - phosphate ( e4p ) production of pentose pathway
Ppsa基因編碼磷酸烯醇式丙酮酸合成酶a （ ppsa ） ，該酶催化丙酮酸合成磷酸烯醇式丙酮酸； tkta基因編碼轉酮酶a ，該酶在磷酸戊糖途徑中生成4 -磷酸赤蘚糖起主要作用。Heteropoly blue q7pmo12o42 ( q = c5h5nc16h33 ) has been designed and synthesized as reaction - controlled phase - transfer catalyst for catalytic epoxidation of cyclohexene and catalytic oxidation of benzalcoho with h2o2 as the oxidant
設計合成了第一個由磷鉬雜多藍作為反應控制相轉移化劑的反應體系，用於對環己烯進行催化環氧化，苯甲醇進行催化氧化。Usage of neuron specific enolase in diseases of central nerve
神經元特異性烯醇化酶在中樞神經疾病中的作用Moreover, because there are many kinds of surface - active agents, there are many kinds of prescription and making technology, therefore, it is various in style that the iodine produced is bent over, the iodine with the document report bends over more than 100 kinds, in market not of our country sell iodine bend over because too it more than 10 kinds, like gathering there aren t ethylene glycol the iodines, ren base phenol, the iodine can only exist to bend over with the liquid state, the stability is bad, the sterilization level is low, the poisonous side effect is different, have been eliminated for a long time in the western developed country
再者，由於表面活性劑有很多種，配方和製作工藝也有很多種，因而，生成的碘伏種類繁多，有文獻報道的碘伏就有100多種，我國市場上銷售的碘伏也有10多種，像聚乙二醇碘、壬基酚聚氧乙烯醚碘、聚醇醚碘、洗必泰碘等等，這些碘伏都只能以液體狀態存在，穩定性差，殺菌水平低，毒副作用參差不，在西方發達國家早被淘汰。不同的碘伏，從理化特性到消殺效果是大不一樣的。Pva polyvinyl alcohol is a kind of water soluble polymer with stable chemical property, good dissolution and strong
聚乙烯醇是一種水溶性高分子聚合物，它具有化學性能穩定溶解性能良好粘著力大等優點，可用作聚合反Pva polyvinyl alcohol is a kind of water soluble polymer with stable chemical property, good dissolution and strong a.
聚乙烯醇pva是一種水溶性高分子聚合物，它具有化學性能穩定溶解性能良好粘著力大等優點，可用作聚合反應? .Compared with cotton, vinylon has stronger tenacity and elongation, better abrasive resistance, stronger hygroscopicity, and better heat preservation, and it has better resistance to chemical corrosion, sunlight, moth, mold, and radiation as well. vinylon can be spun with cotton or other fibers into knitting goods and other cloth. it is also used as industrial fiber for the manufacture of tire cord, conveyer, fire hose, fish net, ropes, canvas, filter cloth, and rubber items etc
維尼綸是以聚乙烯醇為原料紡成的合成纖維，其性能與棉花相似，與棉花相比又有強伸度大耐磨性好吸濕性強的優點和更好的耐化學腐蝕性耐曬性耐蛀霉性保暖性及耐輻射性等，可與棉花及其它纖維混紡以織造針織物及其它用布，同時作為工業用纖維，廣泛用於製造輪胎簾子線運輸帶水帶魚網繩索帆布過濾布及橡膠製品等。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。Based on the liquid crystal polymer theory, two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group. an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group. mixture was made of the additive and liquid crystalline polymer, which structure was identified by ftit, " ii nmr, dsc and pom
本論文根據液晶分子結構理論，選擇聯苯基作為介晶基元的剛性核、柔性的六亞甲基脂肪鏈為柔性間隔基，與丙烯酸反應，合成了兩種丙烯酸酯型聚合物；以拆分的l （ - ） 2 -辛醇為手性基團合成了一種液晶手性添加劑，並將所合成的手性添加劑與液晶聚合物共混，採用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段對合成的化合物、共混物進行了表徵。Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide
摘要利用脂肪酶在有機介質中催化制備過氧酸，丙烯醇在過氧酸的作用下發生環氧化反應生成環氧丙醇。Phase transfer catalysis of polystyrene triethanol amine resin
聚苯乙烯三乙醇胺樹脂的相轉移催化作用" ocean grand chemicals " or the " group " sehk code : 2882, a subsidiary of hong kong - listed ocean grand holdings limited sehk code : 1220, today announced its university - industry collaboration programme. it is a joint project with the university of hong kong " hku " to carry out research on efficient extraction of trace precious metals from industrial effluents via novel water compatible solid - phase separable scavengers
海域化工或集團香港聯交所股份編號： 2882今日宣布一項大學與工業合作計劃，由集團與香港大學共同研究通過用新創水容聚乙二醇聚苯乙烯固相分離萃取劑方法，更有效地從工業排放物中提取貴金屬。分享友人