Betaine amphoteric surfactants can be used as microemulsifiers and dispersants, which can be used in styrene emulsion polymerization to obtain small particles (50 to 100μm) with a narrow distribution. The alkylbetaine amphoteric surfactant is used as an emulsifier for the polymerization of styrene. The latex is diluted with water and filled with a batch of mucilage and acrylic on a nylon carpet, the stain can be reduced. Dodecyl and tetradecyl betaine can also be used as a suspending agent for the aqueous phase polymerization of vinyl chloride. Most of the allyl latex is synthesized in the presence of low concentrations of lauryl beet alkali or coco alkyldimethyl. A alkyl betaine as a cationic latex for emulsifiers, with a cationic emulsifier, which is specially used for road paving chemicals and has much better performance than nonionic emulsifiers. Betaine amphoteric surfactants can also be used in the preparation of photographic emulsions. Octadecyl betaine is an emulsifier for the preparation of alkyl acrylates and acrylonitriles in polymeric hydrosols compatible with gelatin. It remains stable in the pH range and is used as a photographic emulsion.
Betaine amphoteric surfactants are used in secondary and tertiary oil recovery, and their dispersibility is particularly advantageous for limestone tectonic rock formations. Oil recovery can be enhanced by the displacement of a microemulsion containing a betaine or an acyl betaine amphoteric surfactant. The alkylbetaine amphoteric surfactant displaces carbonate minerals, and since the betaine amphoteric surfactant has excellent solubility in a saline solution, it is not precipitated by divalent calcium ions. The C12-14 alkyl chain sulfite betaine is a fungicide for sulfate reducing bacteria and can be used for enhanced oil recovery and crude oil refining.
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