anhydride

1. This may be readily converted to the anhydrous salt by reaction with a readily hydrolysed material, such as acetic anhydride.
   这和易水解的物质如醋酸酐反应可以很容易转变为无水盐。
2. Sulfur method replaced by acetic anhydride method for chloroacetic production is the trends in domestic.
   指出在国内用醋酐法代替硫磺法生产氯乙酸的必然趋势。
3. Polyethylene glycol and maleic anhydride were used as materials, carboxylic polyether that was used as agent of modifying composite interface was synthesized by using heat catalysis method.
   对竹纤维增强聚酰胺树脂复合材料界面改性剂及其界面改性机理进行研究，以聚乙二醇和马来酸酐为原料，用热催化法合成具有线型结构的羧化聚醚。
4. The influence of solvent on the homogeneous hydrogenation of maleic anhydride is obvious.
   溶剂对顺酐加氢催化活性有着很大的影响。
5. With the unceasing development of polycarboxylate superplasticizers, maleic anhydride is used more and more in its synthesis.
   随着聚羧酸盐减水剂的不断发展，马来酸酐在其合成中的应用也越来越多。
6. The production technology and market for maleic anhydride are reviewed, and some advice about development of China's maleic anhydride industry is put forward.
   分析了顺酐生产技术进展及国内外市场，提出了我国顺酐发展的建议。
7. Fluorine-containing polymer-base fatliquoring agent was prepared through free radical copolymerization with maleic anhydride and natural oil.
   通过动、植物油与马来酸酐共聚，然后用十二氟庚醇和高级脂肪醇酯化，合成了含氟聚合物加脂剂。
8. Cetyl phthalate was prepared from phthalic anhydride and cetyl alcohol as raw materials catalyzed by non-acid catalyst.
   以苯酐与十六醇为原料，选用非酸催化剂，在实验室合成了增塑剂邻苯二甲酸双十六烷基酯。
9. Polyaspartic acid ( PASP) was synthesized by self-catalysis process with microwave using maleic anhydride and ammonium acetate as raw materials.
   以马来酸酐和乙酸铵为原料，在微波条件下用自催化法合成了聚天冬氨酸（PASP）。
10. The paper focused on the study of synthesis of diiodophthalic anhydride.
    报道了二碘代苯酐的合成研究。
11. Succinic acid dehydration is one of industrial methods to produce succinic anhydride.
    丁二酸脱水法是工业生产丁二酸酐的方法之一。
12. The catalyst had high activity and high selectivity in esterification of phthalic anhydride with isoamyl alcohol.
    该催化剂对邻苯二甲酸酐和异戊醇的酯化活性高，无副反应。
13. The kinetics on the hydrogenation of maleic anhydride to succinic anhydride has been studied.
    在反应条件考察的基础上，对顺酐均相加氢生成琥珀酸酐的反应动力学进行了研究。
14. In this subject, gluten was modified by both wet heat treatment and succinic anhydride acylation.
    本文主要研究了湿热&琥珀酸酐酰化对小麦面筋蛋白进行复合改性。
15. The p-nitroacetanilide was synthesized by using p-nitroaniline, acetic anhydride and acetic acid as raw materials.
    以对硝基苯胺、乙酸酐和乙酸为原料合成对硝基乙酰苯胺。
16. The flow sheet and operation in phthalic anhydride plant system after the adding partial condensator were introduced.
    介绍了苯酐装置系统中增加部分冷凝器的流程，操作讨论了加部分凝冷器前后的经济效益。
17. In this paper, maleic anhydride ( MAH) was grafted onto PP using the solid grafting method to produce a high graft level PPg-MAH.
    该文研究了马来酸酐（MAH）固相接枝PP的方法，通过对反应方法的优化得到了接枝率较高的MAH接枝PP。
18. Monochloroacetic acid was prepared by using acetic anhydride or sulfur as catalysts to chlorinate acetic acid respectively. Ceramics, which contain compounds of Both metallic and nonmetallic elements, are usually relatively resistant to severe mechanical, thermal, and chemical conditions.
    对以醋酐为催化剂和以硫磺为催化剂的醋酸氯化合成氯乙酸的优劣进行了比较研究。陶瓷是由金属和非金属元素的化合物构成，通常能抗恶劣的机械、温度和化学环境。
19. The yields of peracetic acid is studied from two different preparation methods using hydrogen peroxide and acetic acid or acetic anhydride.
    比较了用乙酸和乙酸酐分别与过氧化氢反应制备所得的过氧乙酸的浓度。
20. The regioselective nitration of toluene and chlorobenzene with nitrates and supported nitrates on solid acid catalysts and supports in the presence of acetic anhydride is studied.
    该文讨论了应用固体酸催化剂和载体，在醋酐存在下，采用硝酸盐和载体硝酸盐硝化甲苯和氯苯的选择性。
21. These data provide important basis for recovery of maleic anhydride using nonaqueous solvent and for projecting new solvent.
    本部分的工作提供的数据为筛选合适的有机溶剂和提出新的有机溶剂吸收顺酐提供了重要的依据。
22. The effects of the amount of catalyst, the amount of acetic anhydride, reaction time, and addition of solvents etc. on the acylation reaction were investigated.
    考察了催化剂用量、乙酐用量、应时间和溶剂的加入等因素对该酰化反应的影响。
23. Study of chain transfer to acetic anhydride in the polymerization of tetrahydrofuran
    四氢呋喃在苯中聚合向醋酸酐链转移的研究
24. Nadic anhydride was synthesized by the reaction of maleic anhydride with cyclopentadiene obtained from the cleavage of dicyclopentadiene.
    以工业级二聚环戊二烯和马来酸酐为原料合成了内亚甲基四氢邻苯二甲酸酐。
25. The kinetics of polyesterification of phthalic anhydride with diethylene glycol was investigated.
    对邻苯二甲酸酐和二甘醇的聚酯化动力学进行了研究。
26. The kinetics of esterification of linalool with acetic anhydride was studied.
    研究了芳樟醇与乙酸酐酯化反应动力学。
27. By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride.
    以衣康酸为原料合成了衣康酸酐，并在乙酸镉的催化作用下通过开环聚合得到了聚衣康酸酐。
28. The reaction condition parameters of bulk and solution polymerization of maleic anhydride were selected by orthogonal experiment.
    探讨了纳米粒子催化马来酸酐本体和溶液聚合，通过正交实验筛选出了最佳反应条件。
29. The diamyl glutarate was synthesized by esterification of n-amyl alcohol and glutaric anhydride separated from dicarboxylic acid by catalysis of silicotungstic acid.
    以正戊醇和从二羧酸中分离出的戊二酸酐为原料，以硅钨杂多酸为催化剂进行酯化反应，合成戊二酸二正戊酯。

noun

1. a compound formed from one or more other compounds in a reaction resulting in removal of water