醇的酯 的英文怎麼說
中文拼音 [chúndezhǐ]
醇的酯
英文
alcohol ester-
The effects of pressure fermentation on barm propagation, the formation and reduction of diacetyl, the formation of higher alcohols and esters, and beer taste were studied in the experiments
摘要實驗研究了壓力發酵對酵母繁殖、雙乙酰形成及還原、高級醇和酯的形成，以及啤酒口味等方面的影響。Study on the esterifying process and kinetics of polythylene - glycol and methacrylic acid
聚乙二醇與甲基丙烯酸的酯化工藝及動力學研究A series of copoly ( olefin - co - ester ) s were synthesized and characterized by starting from cyclooctene, cyclooctadiene or nobornene with ethanediol di ( 10 - undecenoate ) via metathesis copolymerization and hydrogenation reaction
摘要通過環辛烯、環辛二烯和降冰片烯-十一烯酸乙二醇二酯的易位共聚合及氫化反應合成了烯烴共聚酯。In this text, the developments of hydroformylation of methyl oleate and oleyl alcohol, as well as the reactions and applications of its final products were reviewed
本文綜述了對化學工業具有潛在經濟價值的油酸甲酯和油醇的氫甲酰化反應的進展，並介紹了反應產物的應用前景。Abstract : the esterification of phthalic acid and ethylene glycol under microwave field was studied. the results showed that it could get high yield of product and need less fime to complete the reaction
文摘:觀測了鄰苯二甲酸及乙二醇在微波輻照下的升溫曲線，並研究了鄰苯二甲酸和乙二醇在微波輻照下的酯化反應，結果表明，微波輻照下的酯化反應行為優于常規條件（電爐加熱）下的酯化反應行為。Gardner apha standard test methods for polyurethane raw materials : determination of gardner and apha color of polyols
聚氨基甲酸乙酯原材料的標準試驗方法:多元醇的加德內爾This paper reviewed the progress of structure - activity relationship and chemosynthetic methods of brassinosteroids in recent years
摘要綜述了油菜甾醇內酯類植物生長調節劑的結構與活性關系及近年來的化學合成方法。Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge
對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明：以負載型雜多藍為催化劑，酯化反應轉化率接近100 % ，收率可達98 . 9 % ，選擇性為98 . 9 % ，重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點Taking the discarded polyester ( bottle ) as the raw material, we study a technique in which it is decomposed into deg
摘要以廢聚酯（瓶）為原料，研究了廢聚酯瓶料醇解成芳香族聚酯多元醇的工藝。Preparation and properties of maleopimaric neopentyl glycol ester polyol
馬來海松酸新戊二醇酯多元醇的制備及性能When eaten instead of junk food high in saturated fats ( like potato chips and doughnuts ), nuts lower blood levels of triglycerides and ldl ( bad ) cholesterol while raising hdl ( good ) cholesterol - - a perfect formula for preventing heart disease
用乾果取代含有大量飽和脂肪的「垃圾」食品（如薯片和炸面圈） ，就可以降低血液中甘油三酯和低密度脂蛋白膽固醇（有害的）的水平，同時提高高密度脂蛋白膽固醇的水平? ?這是預防心臟病的完美方法。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Methods cholesterol esterase was modified with a series of polyethylene glycol ( peg ) derivatives and investigated its potential clinical application for measurement of hdl - c
方法：採用各種聚乙二醇修飾劑對膽固醇酯酶進行修飾從而獲得一系列修飾酶，然後研究這些修飾酶在高密度脂蛋白膽固醇的臨床檢驗中的作用。Standard test methods for testing polyurethane raw materials : determination of hydroxyl numbers of polyols
聚氨基甲酸乙酯原料的標準試驗方法:多元醇的羥基數的測定The esterification reactions of rosin with ethanol, ethane glycol and glycol under the irradiation of microwave and ultrasound have been investigated in the present paper
摘要該文對在微波和超聲波輻照下的松香與醇的酯化反應進行研究。Recent progresses in the study on the conversion of syngas to ethylene glycol, including direct synthesis by syngas and indirect synthesis by methanol and formaldehyde or oxalate, are introduced
摘要介紹了合成氣合成乙二醇的工藝進展情況，包括合成氣直接合成法、甲醇甲醛合成法和草酸酯法等。Based on the fact and anticipation of high crude oil price, and comparison of various synthesizing routes, it is suggested that the routes using methanol and formaldehyde or oxalate as the intermediums should be developed according to the recent economical and technological conditions
在比較不同工藝路線的同時，從現有的經濟技術條件出發，尤其是根據原油價格高漲的實際情況和預期，提出了大力發展甲醇甲醛合成法和草酸酯法合成乙二醇的戰略思路。The synthesize and application of
阻燃聚酯多元醇的合成及應用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。Reaction kinetics of transesterification between vegetable oil and supercritical methanol
超臨界甲醇中的酯交換反應及其動力學分享友人