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单词 Ester
例句
1. Aunt Ester give you more than money.
2. I went up to see Aunt Ester and got that bad energy off me.
3. Mrs Ester was in her late thirties, about average height, with a slim figure.
4. Sucrose ester is a kind of nonionic surfactant.
5. A salt or an ester of propionic acid.
6. Cholesteryl ester transfer protein; Polymorphism; Alzheimer's disease; Highdensity lipoprotein.
7. A salt or an ester of picric acid.
8. A salt or ester of arsenic acid.
9. Pyridonecarboxylic acid derivative substituted by bicyclic amino group, ester thereof, salt thereof, and bicyclic amine as intermediate thereof.
10. HPLC method for enantioseparation of ketoprofen esters, namely glucose ester, mannose ester, maltose ester of enzyme promoting asymmetry synthesis and racemic ketoprofen vinyl ester was developed.
11. The ethyl ester of conjugated linoleic acid(CLA)was synthesized with ethyl ester of safflower oil as raw material and with kalium alcoholate(KOCH2CH3)as catalyzer.
12. Experiments demonstrate that ester of a degree of purity suitable for polymerization can be obtained in optimal conditions under vacuum.
13. The phthalic C14 mono ester were prepared by the reaction of tetradecanol with phthalic anhydride in cyclohexane, and sodium phthalate.
14. Nipagin Ester is a new anti-mildew and antiseptic agent with the best inhibiting effect on aflatoxin in food , drink, cosmetics and medicine.
15. This study optimized the conditions of yielding ester for ethyl caproate producing starter by orthogonal experiments.
16. A series of amino acid ester substituted and mixed-substituted polyphosphazenes have been prepared by nucleophilic substitution of poly(dichlorophosphazene) with various amino acid esters .
17. Methods: acid react with methyl alcohol and alcohol to synthesize methyl ester and ethyl ester compounds.
18. The force that press a gram changes formal name to call methylic acrylic acid armour ester, namely " organic glass " .
19. Potassium dihydrogen phosphate was used as catalyst in the synthesis of hexanoic acid 2-(diethylamino)ethyl ester.
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20. The invention discloses a pour point depressant of lubricating oil, which is a terpolymer of pentaerythritol-2-fatty acid ester, fumaric acid and acrylamide.
21. Water soluble quartz grinding liquid consists of efficient self-lubricating amide rust inhibitor, dispersant, water soluble lubricant, acrylic ester densifier, etc.
22. From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
23. Citric acid(CA) can be used as durable press agent of natural fiber fabrics. After during pad-dry-cure technique , ester crosslinking was formed between CA and fiber.
24. The main components in ethanol-extracts are psoralen, hexadecanoic acid , hexadecanoic acid ethyl ester, bergapten, oleic acid and linoleic acid.
25. This paper reports the function of anhydrous potassium fluoride and acetonitrile in C-alkylation of active methylene group of acetoacetic ester.
26. In the process glyceride is transformed into fatty acid methyl ester and glycerol by - product.
27. In this paper, natural cotton cellulose was modified by the steam explosion, modified cellulose, acetic anhydride and fatty acids have been used to synthesize the long chain cellulose ester.
28. In this paper we briefly introduce the dielectric property, heat resistance and wet heat behaviour of thermo-setting butadiene-styrene resin modified by cyanate ester resin.
29. The process of this method is relatively complicated, its advantage is vicinal diol's total selectivity reached 85%, when the conversion rate of unsaturated fatty acid methyl ester was 98%.
30. The optimum technological conditions were studied for the synthesis of bagasse cellulose phosphate ester by the reaction of bagasse cellulose as raw material with urea as catalyst.
31. The kinetics of neat cyanate ester and its modified resin systems were investigated by FTIR.
32. Novolac cyanate ester resin is one of the high ablative-resisting polymer based materials. It also has superior beat-resistance, dielectric and mechanical properties.
33. The bonding properties decrease with the order of modi fied cyanate ester, epoxy 5228 and epoxy 4211.
34. Stearic acid (octadecanoic acid) A saturated carboxylic acid, which is widely distributed in nature as the glyceride ester.
35. A new ester guerbet alcohol acetate is synthesized by using acetic acid and guerbet alcohol 2 octyl dodecyl alcohol in presence of catalyst phospho tungstic acid. The esterification ratio is 92.0 %.
36. On the rigid surfaces of non - ferrous metal as finish , concrete, asbestos-cement board, plank, polymeric ester etc.
37. In toluene solution, the esterification reaction of 3,5,6-trichlorosalicylic acid and n-pentanol took place with nano catalyst, and then the 3,5,6-trichlorosalicylic ester was produced.
38. Background-The role of cholesteryl ester transfer protein in the development of atherosclerosis is still open to debate.
39. Then the imidazoline boric acid ester was synthesized when the intermediate reacts boric acid.
40. It is reveal by GC analysis that the purity of the TMP , treated by reduced pressure distillation and recrystallization in acetic ester , approximates to that of the reagent grade TMP .
41. At the same time, the development tendency and the application prospect of cyanate ester resins were also discussed.
42. This article deals with the synthesis and characterization of epoxy - polyacrylic ester IPN emulsion.
43. Application of Nipagin complex ester as a preservative used in pickles was studied.
44. Acidic components were precipitated from waste ester solution according to the differential solubility of components in water solution.
45. A method was established for the direct determination of fatty acid polyglycol ester in DTY finish by infrared spectrometry.
46. A series of poly alkylene succinate was synthesized by ester exchange reactions and the solid electrolytes were made from the polyesters and lithium perchlorate.
47. Tannase hydrolyses the ester bonds and depside bonds in gallic acid tannins to release gallic acid and glucose.
48. The focal development of benzyl chloride carbonylation on synthesis process and phenylacetic ester on downstreams products was put forward, and the export of phenylacetate should be expanded.
49. Results:Using Laurate alcohol ester phenylacetate partly instead of sodium phenylacetate can more help promote thallus growth and raise fermentation units.
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50. Kiwi and palmagranite fruit is also loaded with ester C along with a new super food known as mangosteen .
51. Sulfuric acid dimethyl ester, one of the important chemical raw materials acts as the methylating agent in the organic synthesis for the purpose of replacing alkyl halide.
52. The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.
53. The safflower oil unsaturated monoglycerid ester was synthesized with glycerin and xinjiang local safflower oil in the presence of the sodium catalyst.
54. Pentaerythritol ester of gum rosin are made from gum rosin or light-colored rosin through esterification with pentaerythritol; used in adhesives, rubber products.
55. It's an ambient self - drying amino - ester modified alkyd coating.
56. Ingredients: Rose extract, whitening factor, lauric acid , tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.
57. Acrylic acid and its ester derivatives are important raw materials for the chemistry industry, as monomer, via homopolymerization and copolymerization, it can synthetic thousands of polymers.
58. Nonionic surfactant polyglycerol maleated rosin ester(PGMRE) has been synthesized by the reaction of maleated rosin and polyglycerol.
59. They can be activated in the liver by hydrolysis of the ester and desaturation of the necine base to reactive electrophilic pyrrolic CYTOTOXINS.
60. Provided herein are catalysts useful in enabling and promoting the insertion of alkylene oxides into ester linkages.
61. Fluphenazine contains an ester group which is susceptible to hydrolysis by esterases in the blood. If the drug is given by i. v. injection, the ester is quickly hydrolysed .
62. Identification of neutral cholesterol ester hydrolase, a key enzyme removing cholesterol from macrophages.
63. The emulsibility, emulsifying stability, and holding oiliness of the ester were also studied and compared with those of monoglyceride .
64. Phthalic acid ester is a kind of plastication material, as time goes on, it will transfer from plastics to external environment, and now it becomes a widespread global environmental pollutant.
65. Quaternary ammonium salt of chitosan was synthesized starting from chitosan, triethylamine and ethyl chloroacetate by ester exchange reaction.
66. According to the structure and oxidation mechanism of rosin, the light-colored reaction of polymeric rosin with phenols, phosphite ester, thioester and etc.
67. An air-drying epoxy ester primer is prepared based on epoxy resin , fatty acid, drying oil(), pentaerythritol and phthalic anhydride.
68. The Bending strength for concrete bonding was over 7 MPa with ester crete - p and 8 Mpa with Epcrete - p .
69. OBJECTIVE To investigate the major metabolites of eugenol ibuprofen ester propionic acid.
70. Three sharp cedar ester alkali has remarkable curative effect for treating carcinoma oesophagi, stomach cancer, rectal cancer, lung cancer, leukemia, the lymph lattice cytoma, the lymphosarcoma.
71. SPM could induce cholesterol ester to convert into free cholesterol in the cells.
72. There are three steps for preparation of polyglycerol fatty acid ester: polymerization, molecular distillation, polyglycerol esterification.
73. This complex reaction is characterized by a keto - enol tautomerism equilibrium and ester exchange reaction.
74. Methods:Chiglitazar was synthesized from 2-(4-fluoro)benzoylcyclohexanone, L-tyrosine methyl ester and 1,2-dibromoethane via 3 steps.
75. The synthesis of nipagin ester with solid acid catalyst of HY type has been carried out by esterification of n -butyl alcohol and p -hydroxybenzoic acid.
76. Commonly used androgen preparation has hydroxide of ketone of third acerbity spermary, fluorine methylic spermary element, 2 methyltestosterone, go inside hydrogenous Gao ketone ester.
77. The starch phosphate ester was developed for settling agent of fine coal meals. The optimum reaction conditions were researched by experiments.
78. ANDROSTANE with Methyl Block and Ethyl Ester will give you the results you expect from a company with our history and a name like Masterdrol.
79. Initial animal studies indicate that Ester - E's absorption may exceed that of the tocopherol and acetate forms.
80. A review with progress on the application of carbamic ester compound.
81. Objective To observed the effects of phytosterol ester (PSE)on serum lipid level in rats.
82. The structures of etodolac and its methyl ester were the same as those reported in literature.
83. Microwave assisted synthesis was a quick and convenient way to synthesize the polymer of rosin allyl alcohol ester,(http:///ester.html) and the performances of the product were superior to those by routine method.
84. The invention discloses a nitrogen-sulfur-containing boric acid ester compound and a method for preparing the same.
85. Ester is one of the most important compounds in Organic Chemistry.
86. A compound, such as a salt or an ester of formic acid, that contains the HCOO - radical.
87. Their carbon atom numbers mostly are even number and range from C14 to C40. The proportion of ester compound is greater especially than those with carbon a toms C30 to C40.
88. Fluidity improver H89 2 (terpolymer) used to depress the pour point of waxy crude oil was synthesized from alkene, fatty acid alkenyl ester and alkenyl amide.
89. This paper introduces the synthesis method and application of 2, 4, 6 - tribromophenyl methacrylic acid ester.
90. Resin: there are pyroligneous DIN cellulose, especially medium restriction of polyacrylic ester class shrinkproof resin.
91. The article introduced the preparation of metal fatty acid and fatty acid ester, the analysis on uses of dispersants in China and the comparison test with foreign product were made.
92. Thermoplastic polyurethane elastomers are prepared with polyol ester containing OH, isocyanate and a chain extender.
93. N - octylic acid - N - ( quinazolin - 4 - ketone ) ester is a sulphur - free and phosphorus - free additive.
94. The stable derivative of L-ascorbic acid, L-ascorbic Acid-2-sulphuric acid ester dipotassium salts are synthesized using potassium pyrosulfate as esterifying agent and pyridine as solvent.
95. The results showed that the relative contents of fusel oil were decreased; the relative contents of total ester, total acid and phenylethyl alcohol increased after PEF treatment.
96. The invention relates to a phosphoryl carboxylic acid propofol ester derivative which has the general formula (I).
97. A terpolymer MAV was synthesized with maleic anhydride(MA), acrylate ester(AE) and vinyl acetate(VA) as raw materials.
98. Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.
99. The cellulose structure–property relations and cellulose ester performance and application in some special fields were reviewed in this paper.
100. The results revealed that the components with bicyclic ortho ester had expansibility in the ring opening polymerization by initiation of cationic compounds.
101. For the fermented apple pomace, ester took up more than 50% in the total volatile products, with less than 15% of alkyl-, aldehyde and ketone.
102. The liquefaction productions and residue were tested by FTIR, GC-MS, SEM. The results showed that the final liquefaction products were complex mixture of organic acid, ester and ketone.
103. The carbonyl groups of ketone, aldehyde and ester were generated during photooxidation . 3.
104. Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.
105. Based on enzymology theory, the lipase-catalyzed synthesis of maltose fatty acid ester by transesterification and esterification reaction has been studied.
106. This paper reports the synthesis of a series of poly (silyl ester)s by diacetoxylsilane with several dicarboxylic acid.
107. Curing reaction behaviors of barium-phenolic, ammonia-phenolic, benzoxazine and cyanate ester of novolac were studied by differential scanning calorimetry(DSC) technique and gelatin experiment.
108. It was expounded that measured the content of acetic ester by use of gaseous phase chromatography method.
109. Cholesterol - Ester - Transfer Protein Inhibitor 2 study recruited 752 patients with mixed dyslipidemia.
110. Phosphate ester polymers are degradable in nature(/ester.html), and environment - friendly.
111. Distearic acid glycol ester was synthesized glycol and stearic acid.
112. In the first part, chemical synthesis, including by acraldehyde, malonic ester, ami no lactone and others were discussed and synthesis by hydantoin was emphasized.
113. Direct determination for free propylene glycol content in propylene glycol ester was put forward.
114. This paper describes a method for preparation of spherical cellulose phosphate ester ion exchanger using spherical regenerated cellulose prepared in our laboratory.
115. The composition of polyurethane galactic and the interpenetrating polymerization with acrylic ester monomer were researched.
116. The sym- biosis of indoor microorganism, kinds of mite and its harm, anti-mite agents, test method of anti-mite effects as well as the an- ti-mite effect using carboxylic ester are all introduced.
117. In this paper, linear rosin ester sizer was synthesized from modified rosin and diethylene glycol.
118. They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
119. The results have shown that the series of catalysts have higher acid catalytic activation, stability and selectivity to lower fatty ester.
120. Conclusion The main chemical components of the fatty oil in Carum carvi L. were dibutyl phthalate, octadecanoic acid methyl ester, eicosanoic acid methyl ester, he...
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