醚化了的 的英文怎麼說
中文拼音 [míhuàlēde]
醚化了的
英文
etherfied-
In this paper, glycidyl ether, which was high epoxide value and low viscosity, was synthesized from 2 - trimethylene glycol, epichlorohydrin and the normal butyl alcohol by phase transfer catalyst based on the orthogonal experiment design
摘要採用1 , 2 -丙二醇、正丁醇和環氧氯丙烷為原料,在相轉移催化劑的作用下反應,通過正交實驗合成了的高環氧值、低粘度的混合醇縮水甘油醚。The applications of etherified end group capped polyether in the fields such as cleaning, textile dyeing and printing, food processing and synthesizing polyether modified organosilicon were introduced through practical examples
並通過實例介紹了醚化封端聚醚在清洗、紡織印染、食品加工及在合成聚醚改性有機硅等領域的應用。Meanwhile, the pervaporation of pvb membrane containing etherified p - cd and ca membrane containing etherified p - cd were measured respectively, obtaining a permeation flux greater than other membranes with p - cd
同時,測試了醚化- cd與聚乙烯醇縮丁醛( pvb )共混膜,醚化- cd與ca共混膜的滲透汽化性能,獲得了比較理想的滲透通量。The title mid - etherified melamine - formaldehyde resin was synthesized in two steps and used as a curing agent of water borne paint, the best reaction conditions were investigsted, in ferms of the influence of temperature, time and catalyst
摘要採用兩步法合成了用於塗料交聯劑的甲醚化三聚氰胺樹酯,考察了溫度、時間、催化利等因素對交聯劑中不同組分含量的影響。The main synthetic methods of etherified end group capped polyether, the molecular structure of etherified end group capped polyether influencing on the product characteristics and the technical progress of etherified end group capped polyether in recent years were discussed emphatically
摘要重點論述了醚化封端聚醚的主要合成方法、醚化封端聚醚的分子結構對產品特性的影響,以及近年來醚化封端聚醚的技術進展。As to the separation of p - xylene / m - xylene, in order to blend polymer hydrophobe with p - cd which is preferential to adsorb p - xylene, etherified p - cd was synthesized using benzyl chloride ( phch2cl ). the influences of etherification conditions on the reaction conversion and the degree of substitution of etherified p - cd were investigated. the reaction conversion increases with the increasing of molar ratio of phcr ^ cl : p - cd and the concentration of p - cd
對于px mx體系的分離,為使對px具有優先絡合能力的一環糊精( cd )能夠與油溶性高分子共混,本文採用williamson合成法運用氯化芐( phch _ 2cl )使-環糊精( - cd )醚化,並由元素分析結果,計算出醚化產物的取代度和轉化率,系統地考察了反應條件對轉化率和取代度的影響。In this paper, two kinds of polyazomethine / nylon - 6 ( pam / pa - 6 ) composites with different chemical structures were prepared by means of in - situ polymerization. pam1 and pam2 were prepared from the reaction of terephthalaldehyde with l, 6 - hexanediamine ( paml ), and terephthalaldehyde with 4, 4 ' - diamiediphenyl ( pam2 ). during the preparation, pam chain ends played a retard role in the polymerization of s - caprolactam obviously
本文通過原位聚合法制備了兩種不同化學結構的聚甲亞胺尼龍6 ( pam pa6 )分子復合材料, pam1為對苯二甲醛與1 , 6 -己二胺反應制備的聚甲亞胺, pam2為對苯二甲醛與4 , 4 』 -二氨基二苯醚合成的聚甲亞胺。The summary of manufacturing situation of perfluoroelastomers is made. a brief introduction and analysis of the physical property and application are discussed
摘要概述了國內外全氟醚橡膠的生產和應用情況,並介紹了硫化膠的物理機械性能以及產品應用領域。By static tests, studied the uf characteristics of the uf membranes, which have two kinds of intercept molecular eight, and made from pes, pek, spes and spk , in treating black liquid from basic straw pulp. the result showed : at the condition of static contacting, the pes and spes spk are polluted by composition of black liquid in a less degree, and the pek is in the heaviest edgree. the sulphonaled membranes with higher negative charge have better uf characteristics of black liquid. the uf membranes characteristics of 20 thousand intercept molecular weight are superior to 50 thousand intercept molecular weight
通過靜態試驗,研究了兩種截留分子量的聚醚碸、聚醚酮、磺化聚碸/聚醚碸、磺化聚碸/聚醚酮等超濾膜處理堿法草漿黑液的超濾特性,結果表明:靜態接觸條件下,聚醚碸及磺化類膜受黑液組份的污染程度較輕,聚醚酮膜的污染程度最重;荷負電性較高的磺化類膜具有較好的黑液超濾特性;截留分子量2萬的超濾膜特性要優於5萬的膜。Abstract : propylene alcohol ethers is one of the fine chemicals with many uses and lower toxicity, which is widely studied now. the research progress on the catalysts in the etherification of propylene oxide with alcohol was reviewed in this paper
文摘:丙二醇醚是一種低毒用途廣泛的精細化學產品,目前國內外對其生產工藝與催化劑的開發廣為關注.本文作者較為系統地概述了國內外有關合成丙二醇醚催化劑的研究現狀This paper discusses methods of synthesizing fomesafen technical having high active ingredient percentages, with special emphasis on the key processes of nitration and acylation, and with the goal of manufacturing low cost fomesafen technical with > 98 % purity
摘要討論了高含量氟磺胺草醚原藥的合成方法,對關鍵的硝化與酰化工藝進行了探討,使其在較低生產成本下合成98 %以上的氟磺胺草醚原藥。The main achievements are as follows : 1 it ' s for the first time to extensively investigate effects of main combustion system parameters such as plunger diameter, plunger stroke, fuel delivery advanced angle, valve opening pressure of nozzle on performance of dme engine. the parameters are optimized
取得的主要成果有: 1系統地研究了油泵柱塞直徑和行程、供油提前角、噴嘴啟噴壓力等發動機燃燒系統主要參數對二甲醚發動機性能的影響,優化了這些參數。We have synthesized two novel crown ether compounds which possess the properties of lyotropic liquid crystals. the one is n - octoxymethyl - 15 - crown - 5, the other is ( 15 - crown - 5 ) methyl stearate. the hydrolysis of pnpp ( p - nitrophenyl pipolinate ) catalysis by n - octoxymethyl - 15 - crown - 5 micellar solution has been studied spectrephoto - meterically
我們合成了兩種具有溶致液晶性質的冠醚化合物,正辛氧基甲基- 1 , 4 , 7 , 10 , 13 -五氧雜環十五烷和硬脂酸( 15 -冠- 5 )甲酯和3 -正辛氧基- 1 , 2丙二醇。The influence of catalyst on the copolymerization of epoxy and cyanate was investigated, and the mechanism of their copolymerization was discussed. the catalyst can obviously accelerate the curing of the resin to decrease the curing temperature. the three kinds of reactions ( cyclotrimerization, co - reaction and polyetherification ) in their copolymerization are not simultneous and independent to each other. in the lack of cyanate functional group, the main structures are oxazoine and polyether structure in the cured resin, and the triazine ring structure is of miner importance
研究了催化劑對環氧樹脂與氰酸酯樹脂的共聚固化反應行為的影響,並初步探索氰酸酯/環氧固化的反應歷程.研究表明,催化劑能明顯地促進其固化反應,降低固化溫度,縮短固化時間;氰酸酯與環氧共聚反應歷程是首先氰酸酯三聚反應生成三嗪環結構,然後三嗪環開環與環氧共聚反應,最後是未能參與共聚反應的環氧官能團在唑啉結構和三嗪環的催化下發生聚醚化反應;在氰酸酯官能團欠量的條件下,固化樹脂中主要是唑啉和聚醚結構,而三嗪環結構的含量很少Abstract : aim to synthesize a new prodrug, resveratrol trinicotinate. methods in presence of lithium and a catalytic amount of naphthalene, the reaction of p - methoxybenzyl trimethylsilyl ether and 3, 5 - dimethoxylbenzaldehyde gave resveratrol after a series of translation. resveratrol trinicotinate was obtained by the reaction of resveratrol and nicotinoyl chloride hydrochloride. results a mutual prodrug resveratrol trinicotinate was designed and synthesized. conclusion a novel method for synthesis of resveratrol and resveratrol trinicotinate has been afforded. the e - isomer is selectivily obtained by dehydration of the compound 2 with khso4
文摘:目的合成一種前藥白藜蘆醇煙酸酯.方法在金屬鋰片和催化量的萘的存在下, 3 , 5 -二甲氧基苯甲醛與對甲氧基苯甲醇的三甲基硅醚反應經過一系列轉變得到白藜蘆醇,白藜蘆醇與煙酰氯反應得到白藜蘆醇煙酸酯.結果設計併合成了白藜蘆醇煙酸酯.結論提供了一種合成白藜蘆醇及白藜蘆醇煙酸酯的方法,採用khso4脫水可選擇性的得到反式產物Applications of a variety of metal - based catalysts to asymmetric oxidation of sulfides were reviewed
綜述了各類手性金屬絡合物催化劑在硫醚不對稱氧化中的應用。And they are different with the common liquid crystal compound in the molecular structure, property and application function. up to now, people have more interest on the them in the field of transferring signal and information at the molecular level. starting from the molecular design, three novel series of schiff base type liquid crystal crown ethers were synthesized
從分子設計出發,設計併合成了三類新的席夫堿型液晶冠醚化合物,根據分子中冠醚環和木端烷氧基的不同和大小以及化合物的構型將其分為六個系列, 24個化合物。This paper reviewed latest researches in internal donors in ziegler - natta propylene polymerization catalysts, as well as the features of different internal donors ( monoesters, diesters, diethers, diketones and diol esters )
摘要對丙烯聚合齊格勒納塔催化劑內給電子體的研究進展進行了綜述,同時分析了單酯類、雙酯類、二醚類、二酮類和二醇酯類化合物作為內給電子體催化劑的特性。Cyclic voltammetry ( cv ) in sulphuric acid solution and dimethyl ether solution is employed to characterize the catalytic activity of the electrocatalysts ; transmission electron microscopy ( tem ) and x - ray diffraction are employed to characterize the microstructure of the electrocatalysts ; the electrochemical characteristics of the direct dimethyl ether fuel cells ( ddfc ) made from the electrocatalysts are tested by arbin fuel cell test systems
在h2so4溶液中採用循環伏安對催化劑的電化學行為進行了評價;在飽和二甲醚溶液中採用循環伏安研究了pt / c催化劑對二甲醚氧化性能;通過透射電子顯微鏡( tem )和x射線衍射儀( xrd )分析了催化劑的表面物理特徵;通過arbin燃料電池系統對催化劑制備二甲醚燃料電池進行評價。This text carries through investment decision analysis about technology indraught of petrol etherification of liaohe petrifaction company. and combines company reality to draw up feasible and optimal petrol etherification technology project in some aspects which including technology, economic and social benefit
本文採用定性與定量相結合的方法對遼河石化公司引進汽油醚化技術進行了科學的投資決策分析,在結合公司實際的基礎上,給出了技術上,經濟上,社會效益上都可行的也是最佳的汽油醚化技術方案。分享友人