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31 It showed that EAA had released the original interlayer exchangeable carbonate anions of the LDH, and reacted with LDH forming carboxylic acid metal ionic bond.

32 The effect of potassium borohydride on ester and carboxylic acid reduction was introduced.

33 Preparation methods and degradation behavior for poly ( carboxylic acid silyl ester ) s were reviewed.

34 Preferably, the carboxylic acid raw material contains glutaric acid, adipic acid, pimelic acid, suberic acid, sebacic acid and 1,9-nanomethylenedicarboxylic acid in a total amount of 5 mass% or less.

35 Carboxylic acid ester compound, liquid crystal compound, liquid crystal composition, liquid crystal element and light modulation method.

36 Among these components, 17 of which were identified as benzene carboxylic acids and phenolic acids by using GC-MS analysis and by comparing with authentic compounds.

37 A series of novel liquid crystalline aromatic carboxylic acid compounds are synthesized.

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38 The rate constant of racemization of L-Pro increased with decreasing acidity of the carboxylic acid. However, the racemization of L-His was most rapid in acetic acid.

39 Oxalic acid: Colourless, crystalline, toxic carboxylic acid found in many plants, especially rhubarb, wood sorrel , and spinach.

40 Rotundine was used as chiral auxiliary for NMR analysis of racemic carboxylic acids and it turned out to be an effective chiral solvating agent(CSA).

41 An especially preferred metal chelating group is a carboxylic acid group.

42 Sodium ammonium triacetate(SAT)has been investigated as a non-phosphorus catalyst for esterification crosslinking of cotton with 1,2,3,4-butanetetra carboxylic acid(BTCA).

43 There are certain correlations between the properties and composition of the mixed trimethylolpropane esters of carboxylic acids.

44 A group of polyamides formed by the condensation between an amino group of one molecule and a carboxylic acid group of another.

45 Experiments showed that the photoreaction is affected by the solution pH value and by the presence of carboxylic acids and surface-active agents. The reaction mechanism was preliminarily discussed.

46 The O-alkylation of 2,5-dimethylphenol with 1,3-dihalogen- propane and some monohalogen carboxylic esters are studied.

47 The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.

48 Carboxylic crosslinked polystyrene microsphere was prepared by F - C acylation reaction.

49 The mellow base and the aldehyde group were oxidized to the carboxylic acid base, and some chemical bonds are also broken.

50 It was found that the dominant oxidation products were ketone, carboxylic acid and ester.

51 The lubricity of hydrocracked diesel fuel in the presence of carboxylic acids with carbon number of 18 was investigated by using high-frequency reciprocating rig (HFRR) test.

52 The application ofp - toluene sulfonic acid as catalyst for synthesis of carboxylic ester ( ethyl butyrate ) is studied.

53 For the low unsaturated degree of rape oil, the resistance to electrolytes increased by aid of modification of polyhydric alcohol and unsat9urated carboxylic compound.

54 The carboxylic acid is conjugated with a glycine and bangs off the end of the molecule.

55 The gold - adsorbing property of the amido oximime chelate fiber of carboxylic polyvinyl alcohol is studied.

56 Due to its aromatic carboxylic acid and anhydride groups, trimellitic anhydride (TMA) is relatively reactive and has found wide application in fine chemical industry.

57 Nitryl carboxylic acid and its derivant series products are sold to Europe, America, Japan and enjoys a high reputation.

58 In this paper several extractants containing a thioether group and another group such as carboxylic acid, ester or amide were synthesized.

59 Tbe carboxylic acids (oleic acid or oleate) remain important collectors in the fluorite flotation.

60 The paper discussed main factors effecting acid conversion during carboxylic acid hydrogenation.