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Amic Acids of Alphamethyl Styrene and Maleic-Anhydride Copolymer as a Dispersing Agent

机译:分散剂α-甲基苯乙烯和马来酸酐共聚物的酰胺酸

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摘要

Alphamethyl styrene (AMS)and maleicanhydride (MAn)were copolymerized in 2-butanone using benzoyl peroxide as initiator.Low molecularweight (8000)of alphamethyl styrene-maleic anhydride copolymer was prepared using AMS dimer as a chain-transfer agent.This copolymer was then treated with two different amines, such as dibutylamine and diethanolamine,having different hydrophilicity,to obtain the corresponding amic acids. Application of these amic acids as a dispersing agent to disperse titanium dioxide (TiO_2)in water was studied.The Daniel Flow point method was used to assess the dispersing ability of these amic acids,and diethanolamic acid was found to show the better dispersing property.
机译:以过氧化苯甲酰为引发剂,将α甲基苯乙烯(AMS)和顺丁烯二酸酐(MAn)在2-丁酮中共聚,以AMS二聚体为链转移剂制备低分子量(8000)的α甲基苯乙烯-马来酸酐共聚物。用两种具有不同亲水性的胺(例如二丁胺和二乙醇胺)处理,以获得相应的酰胺酸。研究了这些酰胺酸作为分散剂在水中分散二氧化钛(TiO_2)的方法。采用丹尼尔流点法评价了这些酰胺酸的分散能力,发现二乙醇酰胺具有较好的分散性能。

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