maleic acid
化学式为C4H4O4
常用释义
英式发音
美式发音
基本释义
- 马来酸：一种结晶性的二羧酸，化学式为C4H4O4，与富马酸同分异构体，主要用于有机合成。
例句
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1·In a preferred embodiment, the binder composition includes an ethylene-maleic acid copolymer formed by the hydrolysis of an ethylene maleic anhydride copolymer.在优选的实施方案中，粘合剂组合物包括由水解乙烯马来酸酐共聚物形成的乙烯-马来酸共聚物。
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2·An unsaturated polyester resin was synthesized from dicyclopentadiene maleic acid and ethylene glycol. this resin can be moulded by casting and also can be hardened in air.用二环戊二烯，顺丁烯二酸和乙二醇合成不饱和聚酯，这种不饱和聚酯既可浇铸，也可以在空气中固化。
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3·An unsaturated polyester resin was synthesized from dicyclopentadiene, maleic acid and ethylene glycol. This resin can be moulded by casting and also can be hardened in air.用二环戊二烯，顺丁烯二酸和乙二醇合成不饱和聚酯，这种不饱和聚酯既可浇铸，也可以在空气中固化。
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4·The invention discloses a fructo-oligose maleic acid ester which is formed by the method that maleic anhydride is used for carrying out esterification reaction on fructo-oligose.本发明公开了一种低聚果糖马来酸酯，该产品通过马来酸酐对低 聚果糖进行酯化反应而成。
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5·The HPLC analysis results indicate that the products of photocatalytic degradation of phenol solution include hydroquinone, catechol, benzoquinone, maleic acid, fumaric acid and so on.高效液相色谱分析结果表明：光催化降解苯酚溶液的产物有对苯二酚、邻苯二酚、苯醌、顺丁烯二酸和反丁烯二酸等。
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6·The polymer of maleic acid(PMA) was first prepared by water phase polymerization with maleic anhy_dride, and then esterified with citric acid(CA) to form PMA/ CA durable press finishing agent.探讨了用马来酸酐水相聚合成聚马来酸（PMA） ，再与柠檬酸（CA）酯化成聚多元羧酸（PMA/CA）免烫整理剂的合成工艺；
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7·Methods The multicenter, double-blind, random samples, active-controlled study has been processed in the mild to moderate hypertensive patients, and maleic acid amlodipine as the controll drug.方法以国产马来酸氨氯地平为对照药，在轻度至中度高血压病人中进行多中心、随机、双盲、平行、活性对照的临床试验。
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8·The preparation of 1,1,2 ethanetricarboxylic acid from addition reaction of maleic acid with germaniumane trichloride under acidic condition, then hydrolysis has been investigated, the yield is 71%.以糠醛为原料，先制得顺丁烯二酸，用顺丁烯二酸与三氯锗烷在酸性条件下加成，然后水解得到1，1，2 乙烷三羧酸，收率为71%。
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9·The new water stabiliser TJ -302, a compound containing phosphonic acid, is synthetized in water phase with main materials, of maleic anhydride, acrylic acid and phosphate by one step.以马来酸酐、丙烯酸和含磷化合物为主要原料，在水相中一步合成出含膦马-丙多元共聚物TJ-302；
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10·A series of rigid PU foams based respectively on maleopimaric acid ester polyols , rosin-maleicanhydride adduct ester polyols and turpentine-maleic anhydride adduct ester polyols were synthesized.以马来海松酸酯多元醇、马来松香酯多元醇和松节油马来酐加成物酯多元醇为基，制备了硬质聚氨酯泡沫塑料。