The magnetite with a mean diameter of 8nm was prepared by chemical coprecipitation methods. By the addition of nonionized oleic acid to the suspension of magnetite in solution during precipitation, the magnetite nanoparticles were coated with a double surfactant layer. A gel-like precipitated precursor is then formed because of the hydrophobic interaction among those coated units. By transferring of this precursor to an organic solvent, the surfactant double layer on Fe〓O〓 nanoparticles reduces to one; however, it still remains as a double layer by transferring to an alkaline aqueous solution. Both these cases give in stable colloids of superparamagnetic Fe〓O〓 nanoparticles.

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A series of hydrophobically associating copolymers of acrylamide with octadecyl acrylate were synthesized in this paper.

疏水締合型水溶性聚合物是指在親水性大分子鏈上帶有少量疏水基團的一類水溶性聚合物。

And we also modify the surface of the glass fiber reinforcedunsaturated polyester with the G-02 and G-04. It reacts with the materials surface layer whenthe Composite solidifies. It gets a lower critical surface tension, high contact angle. Theproperty of waterproof and oilproof has improved.

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Cheese in storage for the relationships between physicochemistry, rheology andmicrostructure Reasearching for physicochemistry, microstructure and rheology of cheeses showed: as aresult of the casein hydrolysis and broken casein gel network structure, there decomposed smallermaterial. Moreover, hydrophobic amino acid residue on protein surface increased, hydrophobicinteraction enhanced, which lead to a closer connection with casein micelles.

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In this study, we evaluated pathology, cytoplasmic factor and the phenotypic transition of primary kidney cells in the glomerulosclerosis rats, to explore the mechanism of the glomerulasclerosis and the effects of Shenshuning of smoothing shaoyang and treating both the primar...

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The quantitative structure-activity relationships were established based on the 1-octanol/water partition coefficient and an electronic parameters-lowest unoccupied molecular orbit. The result shows that the highest sensitivity is cell density between three end points, and the toxicity of secondary and tertiary propargylic alcohols is correlation to the position of alkynyl and hydrophobicity, respectively.

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The presence of alcohol helps to rewet the membrane, reduces any static charge it may have, and has a destabilizing effect on the protein in solution.

加入沉淀劑的作用是依賴于IgG分子的Fc與Fab片段對加入的試劑有不同的穩(wěn)定性www.樣，這就是在沉淀劑的作用下，F(xiàn)c片段的穩(wěn)定性下降遠遠快于Fab片段v亚洲色图欧美在线，F(xiàn)c片段的部分去穩(wěn)定作用導(dǎo)致了更多的疏水基因的暴露6969在线观看，在正常情況下這些疏水基是隱藏在蛋白質(zhì)分子內(nèi)部的。

Author tetradecyl acrylate used as a hydrophobic monomer, the direct use of precipitation polymerization Preparation of hydrophobically associating polymer P copolymers, so that the product of copolymerization and post-processing is more simple and easy process.

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The negative values of AGH and the positive values of△G~ suggested that the hydrophobic force favored,and the electrostatic force unfavored the bacterial adsorption on kaolinite and montmorillonite.

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Results showed that extraction abilities depends on the hydrophobic of solutes which pK〓 values are similar, e. g. acetic, propionic, butyric and valeric acids, while pK〓 values affect dominantly the extraction abilities of acids with similar hydrophobic, e. g. formic, acetic, chloroacetic, dichloroacetic, and trichloroacetic acids. Meanwhile, diluents and TOA concentration also affect the extraction equilibria of acids through the specific basicity of TOA .

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