烯醇化物 的英文怎麼說
中文拼音 [xīchúnhuàwù]
烯醇化物
英文
enolate-
The technical character of two kinds of chemical synthesis process from ethylene oxide and acrolein as raw material to produce 1, 3 - propanedi - ol as well as compared with the production process which using glycerol and glucose biological produce 1, 3 - propane - diol is analyzed
重點分析了以丙烯醛和環氧乙烷為主要原料的兩種化學合成工藝的技術特徵,並與以葡萄糖甘油為原料、生物法和一1 , 3 -丙二醇的生產工藝進行了對比。To the mosquito some people ' s sweat simply smells better than others because of the proportions of the carbon dioxide, octenol and other compounds that make up body odour
對蚊子而言,一些人的汗味,由於二氧化碳、八烯醇等組成身體氣味的復合物比例,聞起來就是比其他人好。Chiral quaternary ammonium salts were synthesized from cinchonine in cinchona alkaloids using chloromethylated polystyrene - polyethylene glycol, diethylene glycol, triethylene glycol and glycol as polymer - supported phase transfer catalysts, finsl products were characterized by ftir, elemental analysis, scanning electron microscopy, x - ray photoelectron spectroscopy ( xps )
摘要以金雞納生物堿中的辛可寧為原料,氯甲基化聚苯乙烯聚乙二醇、一縮二乙二醇、二縮三乙二醇、乙二醇等為載體合成了幾種聚合物負載的手性季銨鹽,並對它們的結構用紅外光譜、元素分析、掃描電鏡和x射線光電子能譜等測試手段進行了表徵。Enolase isolated from peas was sensitive to fluoride.
從豌豆提取的烯醇酶對氟化物敏感。Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate
約有30種化合物已從綠茶的香氣中鑒別出來,其中主要的有苯甲醇、苯乙醇、已烯醇、沉香醇、香茅醇和甲基水楊酸酯。The metabolism of these extreme microbes during the production of maotai liquor would further produce multiple enzymes of thermal stability such as amylase, protease, saccharifying enzyme, cellulose, glucase, xylanase, and each kind of dehydrase involved in redox reaction, and dna polyase etc
茅臺酒釀造過程中極端釀酒微生物代謝產生多種熱穩定性的酶,如澱粉酶、蛋白酶、糖化酶、纖維素酶、葡萄糖甘酶、木聚糖酶、參與氧化還原反應的各種脫氮酶、磷酸烯醇丙酮酸激酶及dna聚合酶等。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。Unsaturated alkynyl alcohols, such as dehydronerolidol, dehydrogeranyllinalool, and dehydroisophytol, were prepared by ethynylation of turpentine derivatives, namely terpenylacetones, e. g. geranylacetone, farnesylacetone, and phyton under normal pressure in presence of alkali metal hydroxide and organic solvents
摘要松節油衍生物格萜烯基丙酮,如香葉基丙酮、金合歡基丙酮和植物酮在常壓條件,堿金屬氫氧化物和有機溶劑存在下可發生乙炔化反應,形成對應的, -不飽和炔醇化合物脫氫橙花叔醇、脫氫香葉基芳樟醇和脫氫異植物醇。The obtained biosensor exhibits high sensitivity, excellent reproductivity and good stability with substantially improved performance. part two describes the manufacture and characterization of glucose oxidase - silver sol - polyvinyl butyral modified platinum electrodes with tris ( 2, 2 ' - bipyridyl ) cobalt ( iii ) perchlorate as an electron transfer mediator in the glucose solution
用納米ag溶膠固定god ,採用聚乙烯醇縮丁醛為輔助固酶膜基質修飾鉑絲電極,並以葡萄糖溶液中的co恤pyh ( cio4 ) 3為電子媒介體組成葡萄糖氧化酶生物傳感器。The substitution of pervaporation for traditional separation in organic mixtures is of energy - saving and environment - protecting significance. in this paper, pervaporation of two kinds of organic mixtures is investigated : one is using ca membrane and ca - eva ( ethylene - co - ethylene acetate ) composite membrane for methanol removal from mtbe ( methyl t - butyl ether ), focused on the influence of casting solvent mixtures ; the other is utilizing proper membrane stuff and additive to separate p - xylene from m - xylene
本文對兩類有機有機混合體系進行了滲透汽化膜過程的研究,其一為醋酸纖維素( ca )膜及ca -乙烯醋酸乙烯共聚物( eva )復合膜用於甲基特丁基醚( mtbe )中少量甲醇( 5 meoh )的脫除,探討鑄膜混合溶劑及后處理技術對膜分離性能的影響。其二為運用適當的膜材料及添加劑去除間二甲苯( mx )中的少量對二甲苯( 10 px ) 。The major products includes 1 ) food additives : citric acid & its derivatives, l - lactic acid & its derivatives, msg, starch sugar etc ; 2 ) feed additives : lysine & its salts, corn gluten powder etc ; 3 ) bio - energy : fuel ethanol, bio - diesel etc ; 4 ) biochemical products range : bio - ethylene & its derivatives, poly lactic acid ( pla ) bio - degradable plastics, poly lactic acid polymer fiber fabrics etc
主要產品有檸檬酸及其鹽類、 l -乳酸及其衍生物、味精、澱粉糖等食品添加劑;賴氨酸及其鹽類、玉米蛋白粉、氨基酸蛋白粉等飼料添加劑;燃料乙醇、生物柴油等生物能源產品;生物乙烯及其衍生物、聚乳酸生物可降解塑料、聚乳酸聚酯纖維布料、無毒綠色溶劑、無毒增塑劑等生物化工系列產品。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 thesis, we have done some research on the characterization of cu, zn - sod from hog blood by polyacrylamide gel electrophoresis, electric focusing electrophoresis and dealing with some different reagents
本文採用聚丙烯酰胺凝膠電泳,巰基已醇- sds -聚丙烯酰胺凝膠電泳,等電聚焦電泳以及各種凝膠層析的方法對豬血銅鋅超氧化物歧化酶進行了研究。The gc - ms analysis indicated that the principal constituent of the volatile oil was alkyl - alcohol and alkene compound ( account for 62 ~ 78 percent of the total ), the content of saturation hydrocarbon and organic acid was in the secondary place
揮發油的gc - ms分析表明:川白芷揮發油的主要成分是烷醇類和碳烯類化合物,含量較高,約占整個揮發油的62 78 ,其次為飽和烴類與有機酸類。The modified pva fiber ultra short staple is a new product of modification based on the original production process for the vinylon fiber in the way of physical and chemical reactions. it is applied to replace the asbestos to make cement products
改性聚乙烯醇纖維超短纖是我公司在原維綸纖維生產工藝上加以物理化學的辦法進行改性,使之適合於取代石棉製水泥製品的纖維。Peg and superfluous aa reaction by complete concatenation method, the esterify production " esterify water " and acid number were mensurated, it shows that the esterify reaction would be processed under 100 esterify temperature and with amine accelerantthe tide of esterify reaction was substantiated by ir. in the ir spectrum, the characteristic peak of hydroxy of peg and carboxyl of aa were weakened. and the ester link of peg was reinforce. the " esterify water " was increased gradually and the acid number of esterify production was debased gradually along with the extent of esterify time and the augmentation of molecular weight of peg
通過聚乙二醇與過量的丙烯酸採用全連續法進行反應,測定酯化產物「酯化水」和酸值等宏觀手段反映出在胺類促進劑、 100的酯化溫度等條件下的酯化進程,而利用紅外光譜( ir )分析所反映的聚乙二醇的羥基和丙烯酸的羧基特徵峰減弱,而pea的酯基特徵峰加強等特徵進一步證實了宏觀手段所表現出來的酯化趨勢:隨著酯化時間的延長和聚乙二醇分子量的增大,產生的「酯化水」逐漸增加,酯化產物的酸值逐漸降低;從酯化時間看,當反應時間達到300min時,酯化物的酸值達到最小,而從ir分析來看,酯化物pea4的羥基峰在300min時減弱到最小, pea23在120min時羥基峰的表現出酯化基本完全。Fibers based on poly ( acrylic - co - acrylamide ) ( caa ) and poly ( vinyl alcohol ) ( pva ) blends were prepared using n - hydroxymethyl acrylamide as a post - crosslinking agent. the blend aqueous solution was extruded into an acetone coagulation bath to form continuous caa / pva ( camp ) gel fibers via a wet - spinning method. the camp gel fibers were dehydrated by exchanging water with acetone, thermal - crosslinked
以n -羥甲基丙烯酰胺為后交聯劑,制備丙烯酸-丙烯酰胺共聚物聚乙烯醇共混物( camp )溶液,擠出成形后,經丙酮浴固化成形,並經后交聯,制備出具有較強吸水和保水能力,且有一定強力的camp纖維。分享友人