單酰基 的英文怎麼說

Manufacturer of organic bromine compounds in india. products include alkyl, acetyl, and allyl bromides, bromo - aromatics, and ethylene dibromide, for use as intermediates in fine chemical and pharmaceutical manufacture

-提供紫外線吸收劑benzophenone系列和醫藥中間體：琥珀酸單乙脂酰氯羅紅側鏈二環乙基碳二亞胺溴乙醛縮二乙醇等的單位。

The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm

本論文以開發無機?有機復合納濾膜為出發點，首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜；選用聚乙烯醇和聚酰胺為表面功能層材料，分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑，採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜；以均苯二甲酰氯、哌嗪和二胺為單體，採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜，並對影響膜性能的諸多因素進行系統研究。

In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased

同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。

Hyaluronic acid ( ha ) is a high molecular weight linear polysaccharide composed of repeating disaccharide units of d - glucuronic acid ( glclia ) and n - acetyl - d - glucosamine ( glcnac ) linked by 3 - 1 - 3 and p - 1 - 4 glycoside bonds

透明質酸（ hyaluronicacid ）是一種由葡萄糖醛酸（ glcua ）和n -乙酰氨基葡萄糖（ clcnac ）以- 1 - 3和- 1 - 4糖苷鍵相連的二糖單位重復構建而成的，具有生物相容性的高分子聚合物。

[ objective ] heparin is linear polysaccharides consisting of repeating disaccharide unit backbones of n - acetyl - d - glucosamine that is linked to d - glucuronic acid. the disaccharide repeat unit can be modified to include n - and o - sulfation ( 6 - o and 3 - o sulfation of the glucosamine and 2 - o sulfation of the uronic acid ). these specific sulfate patterns are involved in the interaction of heparin with other molecules

[目的]肝素是由n -乙酰葡萄糖胺與d -葡萄糖醛酸以1 4糖苷鍵連接起來的重復二糖單位組成的線性多糖，葡萄糖胺可帶有n -硫酸基團，可在c6上形成0 -硫酸酯，帶有硫酸基團的獨特結構參與了肝素與其他分子的相互作用。

They may be mono, or triacylglycerols according to the number of ? oh groups esterified

根據氫氧根離子酯化的數目為單，雙，三酰基的酯。

( 2 ) an aminobenthiazole schiff base has been synthesized as a new fluorescence carrier by reacting 2 - aminobenthiazole with p - allyoxybenzoldohyde. the new kind of schiff base can be utilized for preparing an optical sensor, used for determining furazolidone based on the fluorescence quenching. aminobenthiazole schiff base immobilized on a glass plate surface by covalent bonding can circumvent the leakage of the fluorephore from the sensor surface and guarantee a relatively long working lifetime

（ 3 ）用強熒光基團2 -氨基苯並蒽酮與對烯丙氧基苯甲醛合成了另一種新的schiff堿類化合物，與甲基丙烯酸羥乙酯、丙烯酰胺、環乙二醇二丙烯酸酯共聚制得光極膜，制備了一種苯並蒽酮schiff堿光化學傳感器，可用於單質碘的測定。

Ir is often used to investigate the reaction of thermal imine because the groups of amido acid and imide possess characteristic ir spectroscopy and ir method has the merits of simpleness, convenience and speediness

由於紅外光譜法具有簡單、方便、快速等特點，酰胺酸、酰亞胺基團又有著特定的紅外吸收峰，因而成為研究熱亞胺化反應最常用的測試方法。

In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac

為尋找羥乙基甲硝唑的替代物，分別採用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單酯或二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，並對得到的酯的

Essential oils, perfumery isolates and synthetics for export. determination of linalool. dimethyl aniline acetyl chloride method

出口芳香油單離和合成香料芳樟醇的測定.二甲基苯胺-氯化乙酰法

It set up the development of the world recognized high performance nanofiltration composite membrane of aromatic polyamide, on the basis of reviewing the development, the importance in the membrane separation technology, the classification, the fabrication technique and the current development of the research and the application of the nanofiltration membrane. polysulfone was chosen as the material for making the porous substrate because of its excellent compress - to - denseness resistance, its cheap price and its great availability. by fabricating an ultra thin polyamide functional layer on the polysulfone substrate through interfacial polymerization taking piperazine as the monomer in aqueous phase and trimesoyl chloride as the monomer in organic phase, high performance nanofiltration composite membranes of ultra low pressure and ultra high permeating flux were prepared

選擇耐壓密性能優良，價廉易得的聚碸材料為制備復合膜基膜材料，哌嗪為水相單體，均苯三甲酰氯為有機相單體，通過界面聚合反應在基膜表面形成超薄功能層，制備了超低壓高通量聚哌嗪均苯三甲酰胺聚碸納濾復合膜，以0 . 1 mgso _ 4溶液為測試液，所得高脫鹽平板復合膜（ ）在0 . 4mpa下，脫鹽率為96 . 1 ，通量達85 . 2l

Isolate and synthetic aroma chemicals. determination of tertiary content by acetyol chloride - dimethyl aniline method

單離及合成香料叔醇含量的測定氯乙酰-二甲基苯胺法

By sds - page and immuno - blotting, the monoclonal antibody of anti - chick brain cytoplasmic dynein intermediate chain could recognize the 67 kda protein in purified golgi apparatus fraction from lily pollen. subsequently by immuno - gold labeling and transmission electron microscopy, we found that the dynein intermediate chain - like protein bound mainly to the membranes of golgi - associated vesicles. statistics analysis of dynein intermediate chain - like protein on golgi - associated vesciles showed the nearly equal chance of distribution on either cis - or trans - golgi - associated vesciles

對分離純化的百合花粉及花粉管中高爾基體組分進行sds -聚丙烯酰胺凝膠電泳和免疫印跡發現，抗雞腦細胞質力蛋白中間鏈單克隆抗體在67kda處有較強的免疫交叉反應；進而通過免疫金標結合電子顯微鏡觀察發現，大多數類細胞質力蛋白中間鏈存在於高爾基體附近的囊泡膜上；統計結果表明，類細胞質力蛋白中間鏈在順面和反面高爾基體附近囊泡膜上的分佈機率大致相等。

Methylbenzyl amine as chiral auxiliaries to react with racimic ketorolac. then authors got optical amides. the diastereoisomeric mixture were separated by column - chroatography on silica gel. the results of separation depend on the structure of r

苯乙胺作為手性輔基，與外消旋酮咯酸生成一對光學活性的酰胺衍生物，再用簡單易行的柱層析方法分離其非對映異構體。

Through pathway of orientated degradation or decomposition of lignocellulosic biomass, many high - value organic substances of small molecules such as glucose, xylose, phenylpropane units and their dimers, gaseous substances such as ch4 and co, liquid substances such as organic acids, aldehydes, alcohols and other platform chemicals such as furfurals, levulinic acids, xylitols and ethanols can be produced

木質生物質通過一定的降解或分解途徑，可產生很多有重要價值的有機小分子化合物，這些有機小分子化合物有葡萄糖、木糖、苯丙烷單體及二聚體，氣態小分子如ch4和co ，液態小分子如有機酸、醛、醇，重要基礎平臺化合物糠醛、乙酰丙酸、木糖醇、乙醇等。

For this purpose, 2, 5 - diaminobenzene sulphonic acid ( dabsa ) [ c6h3 ( nh2 ) 2so3h ] can be selected as one monomer of ip reaction. the other monomer can be trimesoyl chloride ( tmc ) [ c6h3 ( coc1 ) 3 ]. in order to introduce the cationic group into membrane, 4 - ( chloromethyl ) benzoyl chloride ( cmbc ) [ ch2c1c6h4 ( coc1 ) ] could be added into organic phase ( tmc ) and used for chemical modification after ip process based on the reaction between 4 - ( chloromethyl ) benzoyl chloride and trimethylamine ( tma )

為了引入陽離子交換基團，本文採用2 ， 5 -二胺基苯磺酸作為界面聚合的無機相單體；為了引入陰離子交換基團，在均苯三甲酰氯有機相單體中加入一定量的4 -氯甲基苯酰氯，並考慮在無機相中加入適量的聚乙烯亞胺（ pei ）以增加其正荷電性。

Secondly, the grafted membranes were prepared by grafting 2 - acrylamido - 2 - methyl propane sulfonic acid ( amps ) on pretreated membranes using cetric ammonium nitrate ( can ) as an initiator in the aqueous medium. the surface compositions of the grafted membranes were determined by fourier transform adsorption spectrum ( ftir ) and x - ray photoelectron spectroscopy ( xps ). and the morphology of the grafted membranes was studied by scanning electron microscopy ( sem ) and atomic force microscopy ( afm )

然後，選用硝酸鈰銨作為引發劑， 2 -丙烯酰胺- 2 -甲基丙磺酸（ amps ）為接枝單體，在水溶液體系中進行接枝共聚反應制備pvdf ? g ? amps中空纖維膜，並利用傅立葉紅外光譜（ ftir ） 、 x光電子能譜（ xps ） 、掃描電子顯微鏡（ sem ）及原子力顯微鏡（ afm ）等檢測手段證實了接枝共聚物的存在。

This approach includes lifestyle modifications, such as dietary changes and smoking cessation and the use of hmg - coa reductase inhibitors ( statins ), which are able to correct the lipid status and to prevent major cardiovascular events independently of the baseline lipidaemic or cardiovascular status

這些方法包括生活方式的改變，如飲食改變，戒煙以及運用-羥- -甲基戊二酸單酰輔酶a還原酶抑制劑（他汀類藥物） ，從而糾正脂類情況和預防非依賴性膽固醇血癥的主要心血管事件或心血管狀態。

Methods : in cultured lung explants without serum, the lipid component synthesis of pulmonary surfactant was evaluated in [ 3h ] - choline incorporation ; mrna content of phosphocholine cytidylyltransferase ( cct ) in lung explants was investigated in rt - pcr ; the changes of the ultrastructure of the at ii cells were observed with electron microscope ; the expression of nmdar1 subtype was observed in immunohistochemistry staining ; nitric oxide synthase ( nos ) activity, nitric oxide ( no ) content, superoxide dismutase ( sod ) level, malondialdehyde ( mda ) content and lactae dehydroase ( ldh ) level were determined by biochemistry methods. results : 1. influence of glutamate on synthesis of the lipid component of pulmonary surfactant ? with l - arginine, glu inhibited [ 3h ] - choline incorporation with good dose - dependence and time - dependence ; ( 2 ) mrna content of cct of the glu treatment groups was decreased ; ( 3 ) glu increases the release of ldh in cultured lung explants ; ( dwith electron microscope histochemistry, glu induced the changes of the ultrastruture of at ii iv cells

方法：採用成年大鼠肺組織無血清培養，運用[ ~ 3h ] -膽堿摻入法測定ps主要脂質磷脂酰膽堿（ pc ）合成量； rt - pcr擴增檢測肺組織中pc合成限速酶磷酸膽堿二胞苷酰基轉移酶（ cct ） mrna含量；透射電子顯微鏡法觀察肺泡型上皮細胞和ps系統超微結構的變化；免疫組織化學染色檢測glu的受體nmdar1亞單位的表達；生化測定肺組織乳酸脫氫酶（ ldh ）釋放量和肺組織勻漿中一氧化氮合酶（ nos ）活性、一氧化氮（ no ）生成量、超氧化物歧化酶（ sod ）水平以及丙二醛（ mda ）含量。

It consists of many glucose units, in each of which one of the hydroxyl groups has been replaced by an acetylamine group ( ch3conh )

包括許多的葡萄糖單元，每個單元的羥基都被乙酰基取代。