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2004•Huaxue Shijie (Chemical World)Requires access

Synthesis of Novel N-Dehydroabietyl Betaine-type Amphoteric Surfactants

Lai Gang

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Abstract

Dehydroabietylamine was separated from disproportionated rosin amine and purified. Then, two novel betaine-type amphoteric surfactants,N-dehydroabietyl-N,N-dimethyl carboxymethyl betaine and its chloride, were synthesized from the intermediate N,N-dimethyl dehydroabietylamine. The structures of the target products were characterized by UV, IR and MS spectroscopy. Furthermore, the surface tension and critical micelle concentration (CMC) of the chloride were determined.

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What this paper is about

Dehydroabietylamine was separated from disproportionated rosin amine and purified. Then, two novel betaine-type amphoteric surfactants,N-dehydroabietyl-N,N-dimethyl carboxymethyl betaine and its chloride, were synthesized from the intermediate N,N-dimethyl dehydroabietylamine. The structures of the target products were characterized by UV, IR and MS spectroscopy. Furthermore, the surface tension and critical micelle concentration (CMC) of the chloride were determined.

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Available abstract

Dehydroabietylamine was separated from disproportionated rosin amine and purified. Then, two novel betaine-type amphoteric surfactants,N-dehydroabietyl-N,N-dimethyl carboxymethyl betaine and its chloride, were synthesized from the intermediate N,N-dimethyl dehydroabietylamine. The structures of the target products were characterized by UV, IR and MS spectroscopy. Furthermore, the surface tension and critical micelle concentration (CMC) of the chloride were determined.

Key concepts: Betaine, Chemistry, Critical micelle concentration, Amine gas treating, Surface tension, Chloride, Nuclear chemistry, Micelle

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