110-30-5Relevant articles and documents
Fabrication of nanotubules and microspheres from the self-assembly of amphiphilic monochain stearic acid derivatives
Zhang, Lidong,Li, Haiqing,Ha, Chang Sik,Suh, Hongsuk,Kim, Il
, p. 17890 - 17895 (2010)
A series of amphiphilic monochain derivatives of stearic acid, CH 3(CH2)16CONH(CH2)nNH 2 (n = 2, 3, 4, 6), CH3(CH2) 16CONH(CH2)2S2(CH2) 2NH2, and [CH3(CH2) 16CONH]2(CH2)2, are synthesized, and their self-assembly behaviors have been investigated in 1,2-dichloroethane (DCE). In addition to the concentration of the compound in DCE, the number of methylene units in hydrophilic segments play a crucial role in determining the final morphology of self-assembling structures from nanotubules with 20 nm inner diameter to microspheres with an average diameter of 20 μm. The external texture of the microsphere is also influenced by the number of methylene units in the hydrophilic segment. The microspheres formed by highly ordered aggregattion of nanobelts show high thermal stability. The particular processes and causations have been expatiated.
Method for synthesizing ethylene bisstearamide under catalysis of phosphotungstic acid quaternary ammonium titanium salt
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Paragraph 0015-0019, (2020/01/25)
The invention relates to a method for synthesizing ethylene bisstearamide under the catalysis of a phosphotungstic acid quaternary ammonium titanium salt. The method is characterized in that the ethylene bisstearamide is synthesized from stearic acid and ethylenediamine under the catalysis of the phosphotungstic acid quaternary ammonium titanium salt used as a catalyst, and the structural formulaof the phosphotungstic acid quaternary ammonium titanium salt is shown in the description; and in the formula, R is -C16H33, x = 0.4-0.6, and y = 0.4-0.6. The molecular structure of the phosphotungstic acid quaternary ammonium titanium salt catalyst contains lipophilic groups, so the catalyst has the advantages of good affinity to the raw material stearic acid, high specific surface area, suitableacid intensity, high surface acid amount, and excellent catalytic performance on the ethylene bisstearamide synthesis reaction, and the product has the advantages of high yield, light color and highpurity.
Method for catalytic synthesis of ethylene bis stearamide with phosphotungstate
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Paragraph 0014-0018, (2020/01/03)
The invention relates to a method for catalytic synthesis of ethylene bis stearamide with a phosphotungstate. The method is characterized in that the phosphotungstate is used as a catalyst to catalyzestearic acid and ethylenediamine to synthesize ethylene bis stearamide, the structural formula of the phosphotungstate is (NH)TiHPWO, x= 0.4-0.6, and y=0.4-0.6. The phosphotungstate catalyst provided by the invention has the advantages of relatively high specific surface area, proper acid strength, relatively high surface acid amount, excellent catalytic performance on the reaction for synthesizing ethylene bis stearamide; and an obtained product is high in yield, light in color and luster, and high in purity.