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- W3149126969 abstract "The properties and performances of four kinds of quaternary ammonium salt monomers were researched. The relationships between structures and properties or performances for the four kinds of diallylmethylalkyl(n = 12,14,16,18) ammonium bromides(marked C12,C14,C16,C18) were discussed on the basis of the determination of the thermal stability, surfactivity and flocculation ability. Quaternary ammonium salts C12 ~ C18 decompose within 170 ~ 300 ℃,172 ~ 303 ℃,170 ~ 293 ℃ and 170 ~ 310 ℃,their mass loss rates are 92. 8%, 92. 6%, 96. 4% and 87. 4%, respectively. Their critical micelle concentration(cmc) and the corresponding surface tension(γcmc) are 2. 0,3. 5,1. 4,1. 1 mmol/L and 26. 6,25. 2,33. 8,35. 8 m N/m,respectively. All monomers show excellent surfactivity. The quaternary ammonium salt C16 possesses the best foaming power and foam stability. C12 Krafft point is 0 ℃. Krafft points of C14,C16 and C18 are 1 ℃,8 ℃ and 19 ℃,respectively. The C12 and C14 appear the strongest flocculation ability to bentonite and kaolin suspansion,indicating that the flocculation performance of monomers are of certain selectivity to structures." @default.
- W3149126969 created "2021-04-13" @default.
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- W3149126969 date "2015-01-01" @default.
- W3149126969 modified "2023-09-24" @default.
- W3149126969 title "Relationships Between Structures and Properties of Diallylmethylalkylammonium Bromide" @default.
- W3149126969 hasPublicationYear "2015" @default.
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