烯羧酸 的英文怎麼說

中文拼音 [xīsuōsuān]
烯羧酸 英文
olefinic carboxylic acid
  • 烯 : 名詞[化學] （有機化合物的一類） alkene; olefince
  • 羧 : 名詞[化學] （羧基） carboxyl
  • 酸 : 酸構詞成分。
  1. Recently, ldl apheresis has been applied in clinic and achieves a satisactory effect. in this dissertation, the tripeptide, serine - aspartic - glutamic acid ( sde ), which existes in the cooh - terminal end of the seven repeats in the ligand binding domain of the ldl receptor and plays an important role in identifying ldl, was synthetized and immobilized onto the polyacrylamide ( paam ) beads as a bionic adsorbent for selective removal of ldl from plasma

    本論文以絲氨酰-天冬氨酰-谷氨酸（ sde ）負電性三肽（此三肽廣泛存在於ldl受體配體結合域7個重復序列的羧基末端，對ldl受體特異性識別ldl起著重要作用）作為配體固定到聚丙烯酰胺微球載體上製成仿生性ldl親和吸附劑，考察其對人血漿中ldl及hdl的吸附功效。
  2. In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid, which is transported to the bundle sheath cells, where the carbon dioxide is released, then fixed by the enzyme ribulose bisphosphate carboxylase to form glycerate 3 - phosphate, the first step in the calvin cycle

    在葉肉細胞的葉綠體中二氧化碳與磷酸烯醇丙酮酸結合形成草酰乙酸，后被運到鄰近的維管束鞘細胞，在那裡二氧化碳被釋放，后被核酮糖二磷酸羧化酶固定形成3磷酸甘油酸，這是卡爾文的循環第一步。
  3. Fumaric acid ( trans - butenedioic acid ) an unsaturated dicarboxylic acid, which occurs in many plants

    延胡索酸（反丁烯二酸） ：一種不飽和二羧酸，存在於許多植物體中。
  4. Yh series inorganic gel can be used alone. or mix use with thickening agent such as cardoxymethyl cellulose, hydroxy ethyl cellulose, cmhpc, will acquire best rheological property. it has been found that this kind of product should avoid mix using with the polyurethane thickening agent

    2 . yh系列水性膨潤土無機凝膠產品可單獨使用或於其它增稠劑如羧甲基纖維素，羧乙基纖維素，甲基纖維素及其改性物，堿溶漲丙烯酸類等配合使用，能夠使體協獲得最佳流變性能。
  5. For example, fumarase catalyzes the interconversion of malic acid and fumaric acid

    如延胡羧酸酶能催化蘋果酸和反丁烯二酸的可逆反應。
  6. Synthesis and properties of carboxymethyl cellulose graft sodium acrylate copolymer

    羧甲基纖維素接枝丙烯酸鈉高吸水性樹脂的合成與性能
  7. Effect of the degree of carboxyl neutralization on the dispersivity of polyacrylate sodium

    羧基中和程度對聚丙烯酸鈉分散性能的影響
  8. A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage

    本文合成了高效酰化催化劑4 -二甲基氨基吡啶（ 4 - dimethylaminopyridine ， dmap ） ，採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物，並進行了化學結構和液晶性能的表徵。
  9. The synthesis technology of various liquid rubbers with different active group terminated, such as hydroxyl - terminated, carboxyl - terminated, isocyanate - terminated, ami - no - terminated, mercaptan - terminated and various main chains like polybutadiene, polyurethane, polystyrene were reviewed with 23 references

    摘要綜述了端羥基、端羧基、端異氰酸酯基、端氨基、端巰基等活性端基，以及聚丁二烯、聚氨酯、聚苯乙烯等不同主鏈結構的液體橡膠的合成技術。
  10. The dispersity and stability of the graphite aqueous suspensions was investigated with centrifugation, the violet visible spectrophotometer, the laser particle size analyzer and scanning electron microscopy ( sem ). the following aspects of the production technique were carefully studied : 1. the effects of surfactants, poly ( vinyl alcohol ) ( pva ), poly ( vinyl pyrrolidone ) ( pvp ), sodium alginate ( sa - na ) and poly ( sodium acrylate ) ( pa - na ) on the suspension stability of graphite were investigated

    本研究的主要內容有以下三個方面: 1 、研究了陰離子表面活性劑、非離子表面活性劑、聚乙烯醇（ pva ） 、聚乙烯基吡咯烷酮（ pvp ） 、海藻酸鈉（ sa - na ） 、聚丙烯酸鈉（ pa - na ）對石墨在水中分散性和穩定性的影響; 2 、研究了分散方法、分散介質、 ph值及羧甲基纖維素鈉（ cmc ）含量對石墨在水中分散性和穩定性的影響; 3 、研究了聚乙烯醇（ pva ） 、聚乙烯基吡咯烷酮（ pvp ） 、海藻酸鈉（ sa - na ） 、聚丙烯酸鈉（ pa - na ）四種助分散劑與羧甲基纖維素鈉（ cmc ）復配對石墨在水中分散性和穩定性的影響。
  11. In this paper, a new class of concrete high performance water reducer ( hpwr ) was designed from chemical classification of high performance wra, working principle and unit structure model of poly - carboxylate series wra. the comb - like copolymer structure of hpwr was " carboxylic group - ether link - ester link ". the synthetic chemical materials was polyethylene glycil, acrylic acid and methyl - metacrylic acid ester

    本文從高性能減水劑的化學結構、作用機理以及聚羧酸類減水劑的單元結構模型出發，設計出國內所沒有的一類新型高性能減水劑? ? 「羧酸?醚鍵?酯鍵」為單元結構模型的梳型分子結構的減水劑共聚物，並確定了以聚乙二醇（ peg ）系列、丙烯酸（ aa ） 、甲基丙烯酸甲酯（ mma ）為合成該類減水劑的主要化學原料。
  12. Effect of added methyl acrylate on the polymerization of carboxylic chloroprene emulsion

    丙烯酸甲酯對羧基氯丁膠乳聚合體系的影響
  13. In this study, it has been put forward that taking reactive nanometer magnetic fe304 particles as magnetic nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface, then microspheres are activated by thionylchloride, the surface of such magnetic composite microspheres thus produced had reactive acid chloride groups which then react with the free amino groups of the free soluble enzymes to give peptide bonds ( ? o ? h ?,

    本研究首次提出了以納米級磁性fe _ 3o _ 4粒子為核心，苯乙烯（ st ） ?丙烯酸（ aa ）共聚物為高分子殼層，合成了表面帶羧基的磁性高分子復合微球，然後將這種微球用二氯亞碸進行活化處理，在其表面形成了反應性酰氯基團，該基團可以與游離酶的氨基形成肽鍵，從而將游離酶固定化。
  14. Carboxyethyl ( phenyl ) phosphinic acid with the yield of 69. 2 % was synthesized from phosphorous trichloride, benzene, sodium chloride and acrylic acid

    以三氯化磷、苯、三氯化鋁、氯化鈉、丙烯酸為原料合成了阻燃劑2 -羧乙基苯基次磷酸，收率69 . 2 % 。
  15. 2 with dispersion - polymerization, taking above reactive nanometer magnetic fe304particles as nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface

    2採用分散聚合法，以上述反應型納米磁性fe _ 3o _ 4粒子為核心，苯乙烯（ st ） ?丙烯酸（ aa ）共聚物為高分子殼層，合成了表面帶羧基的磁性高分子復合微球。
  16. 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。
  17. Team a is made of carboxyl styrene, crylic acid assemble matter ; team b is made of silicate cement, quality quarts grit and special active chemical matter

    組分是由羧基苯乙烯、丙烯酸共聚物等組成； b組份是由硅酸鹽水泥、精選的石英砂及特種活性化學物質等組成。
  18. The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper. the experimental results indicate that the effect of single retarder, such as citric acid, is inferior to that of composite retarder which was made of blending citric acid with a few portland cement ( about 0. 5 ?, by weight ). the effect of different water - retention agents, such as polyvinyl alcohol ( pva ), carboxymethyl cellulose ( cmc ), and na - bentonite, etc., was also studied, and the results demonstrate that by means of adding organic and inorganic water - retention agent simultaneously the water - retention of plastering slurry can obviously be improved. the optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other

    研究了分別以檸檬酸、檸檬酸與普通硅酸鹽水泥復合物作緩凝劑，調節粉刷石膏的凝結時間，並對比2種緩凝體系對石膏抗折、抗壓強度的影響.比較不同保水劑（聚乙烯醇、羧甲基纖維素）以及相同量的保水劑在不同工藝流程下保水效果上的區別.探索了有機保水劑和無機保水劑對粉刷石膏的保水性的影響.結果表明，檸檬酸與普通硅酸鹽水泥的復合緩凝劑比單純的檸檬酸更能有效地延緩建築石膏的凝結，同時建築石膏的抗折、抗壓強度降低幅度減小
  19. Graft copolymerization of methyl methacrylate onto carboxymethyl chitin was carried out by stirring quickly and no emulsifier, without emulsifier made the products more pure

    摘要通過高速攪拌，未使用乳化劑，制備了羧甲基甲殼素和甲基丙烯酸甲酯的接枝共聚物，避免了產物中引入乳化劑雜質。
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