環醚 的英文怎麼說
中文拼音 [huánmí]
環醚
英文
cyclic ether-
Synthesis and characteristic of unsaturated alicyclic nitrogen heterocyclic crownethers
不飽和脂環氮雜冠醚的合成和結構表徵In this paper, we reported the synthesis of three supramolecular complexes between - cyclodextrin and anisole, ethyl benzoate, m - cresol, respectively, which are identified by means of 1hnmr technique
摘要以-環糊精與苯甲酸乙酯、苯甲醚和間甲酚在水相中通過范德華力發生包合反應形成了主客體超分子絡合物,並用核磁共振氫譜對絡合物進行了表徵。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。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。In the work, it was systemically studied that the effects of two suggested modifying ways on electrochemical characteristics of lithium metal electrode and its behaviors in lithium cell. finally, the action mechanisms of these two modifying ways were analyzed. through the study on pretreatment effects of different cyclic ether on lithium electrode, it was found that 1, 4 - dioxane ( doa ) and 1, 3 - dioxolane ( dol ), both could form a favorable passivating sei film on lithium electrode surface through
研究不同環醚對鋰電極的預處理作用發現, 1 , 4 -二氧六環( doa )和1 , 3 -二氧五環( dol )對金屬鋰電極的表面預處理均可以在金屬鋰表面形成一層良好的sei鈍化膜,對鋰金屬電極起到了保護性作用,使鋰電極具有較小的界面阻抗,有效地提高了金屬鋰電極的充放電循環效率,改善了鋰金屬電極在循環過程中的表面形貌;而doa和dol對金屬鋰電極的表面預處理,不會明顯的影響鋰電極的動力學性能。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。Hydrophilic modification of poly phthalazinone ether nitrile ketone s containing heterocycle moiety
含雜環聚芳醚腈酮的親水改性Study of hydroxylation of poly ether sulfone keton containing the phthalazinone moiety copolymer
含氮雜環聚醚碸酮的羥基化改性Synthesis and properties of new aromatic polyamides containing methyl substituted phthalazinone moiety
新型雜環氯代聚芳醚的合成與性能( 1 ) the pbs nanoparticles were prepared in quaternary system containing p - octyl polyethylene glycol phenylether ( op ) / n - pentanol / cyclohexane / aqueous solution by different homogenization methods, such as shake by hand, stir by machine and disperse by ultrasonic
本論文的主要內容如下: ( 1 )採用乳化劑op (聚乙二醇辛基苯基醚)正戊醇環己烷水溶液四組分體系,不同均化手段(手搖、攪拌、超聲)制備納米pbs 。One was using the cyclic ether to pretreat the lithium metal electrode. and a favorable surface sei film was wished to form on the lithium metal, to enhance the interface stability of lithium electrode and the cycleability of lithium battery
方法一:嘗試採用環醚類化合物對金屬鋰電極進行表面預處理,預先在金屬鋰表面形成良好的表面sei膜,提高鋰電極界面穩定性和鋰負極的電化學性能。Borohydride which supported by strongly basic ion exchange resin reduced phseseph giving polymer - supported phenylselenide anion. it reacted with, - unsaturated aldehyde or epoxide to produce corresponding selenide. respective conditions were studied also
強堿型離子交換樹脂支載的四氫化硼與二苯聯硒反應,得到載體化的苯硒陰離子試劑,它與, -不飽和醛及環氧化物反應,生成相應的硒醚.對各自的反應條件也進行了探討Toughness and mechanical properties of epoxy modified with poly ether sulphone at cryogenic temperature
聚醚碸對環氧樹脂在低溫下韌性和力學性能的影響Filling flexibilizer, such as epoxy terminal block, polyurethane ether structure, thiokol and liquid ctbn to the system of expoxy - mannich amide, through the test on shear strength, bounding elasticity modulus and break strength of cured products, the different fuction could be found using different flexibilizers
摘要在環氧酚醛胺體系中使用端環氧基聚氨酯醚、聚硫橡膠、液體丁腈橡膠等活性增韌劑,通過對固化物剪切強度、彎曲彈性模量及斷裂強度的測試對比,可以看出不同增韌劑效果不同。Method for the determination of cinmethylin residues in cereals for export
出口糧谷中環庚草醚殘留量檢驗方法The structure elucidation of iridoid glycosi des by spectroscopic technique
利用波譜技術確定環烯醚甙的結構Among them, sea - island structure flexibilizer had good synthetical properties
相比較而言,端環氧基聚氨酯醚海島結構增韌劑的綜合性能較好。Gardenia blue is the blue product of the reaction between iridoids extracted from gardenia and - amino acid with the presence of proteolytic enzyme
梔子藍色素是利用梔子中提取的環烯醚萜類化合物與伯氨基酸能在水解酯作用下產生的藍色物質。The result of routine tissue dyeing assay showed symptoms of hyperemia, swell, fatty, vacuolar and granular degeneration in the liver cells of treated carp ; hyperemia, swell and vacuolar degeneration in the renal tubular epith epithelial cell and lymph cell inroad ; hyperemia, swell, hyperplasia and slough in the gill lamella epithelium ; hyperplasia in lymph cell, gill lamella length becomed different and frame foul - up. the influence become severer with the concentration increasing
其破壞程度隨著濃度的增加而愈發嚴重。建議在使用中一定要科學施藥,環境水域中乙氰菊酯的濃度以不超過0 . 685mg l為宜,醚菊酯的濃度以不超過0 . 057mg l為宜,氯氰菊酯的濃度以不超過0 . 020 g l為宜。Upper - year students are required to take " chemical bonding ", " transition metal chemistry ", " alcohols, ethers, carbonyl compounds ", " amines, arenes and heterocycles ", " chemical kinetics ", " molecular spectroscopy ", " instrumental analysis ", which are continuations of the courses they have taken earlier. the related laboratory courses focus on modern chemical technology
高年級必修化學鍵、過渡金屬化學、醇,醚與羰基化合物、酉安,芳烴與雜環、化學動力學、分子光譜學等與低年級相應之延續科目,而有關的實驗課則注重近代化學技術。分享友人