Hydroxysultaine- and sulfobetaine-based geminal zwitterionic liquids, method for obtaining same, and use thereof as wettability modifiers having corrosion inhibiting properties

A process to obtain hydroxysultaine- and sulfobetaine-based geminal zwitterionic liquids, wherein the process is carried out to the following synthesis scheme:

• and wherein the synthesis comprises the following steps:
• the first step comprises reacting polyethylene glycols of the formula I with benzenesulfonyl chloride or tosyl chloride of the formula II, wherein the reaction is carried out in a reaction time from 1 hour to 12 hours, resulting in a compound of formula III;
• the second step comprises reacting the compound of the formula III through a nucleophilic substitution with primary or secondary amines of the formula IV, resulting in amino alcohols of formula V;
• and
• the third step comprises obtaining sulfobetaine and hydroxysultaine-based geminal zwitterionic liquids of the formula VII by reacting the amino alcohols of the formula V with sodium 2-bromoethane sulfonate or sodium 3-chloro-2-hydroxypropane sulfonate of the formula VI;
• and
• wherein in all of the formulae above, R1 is a radical represented by an alkyl or alkenyl, linear or branched chain having 1 to 30 carbon atoms, or a cycloalkyl or aryl group having from 5 to 12 carbon atoms;
• R2 is a radical represented by —H;
• an alkyl or alkenyl, linear or branched chain having from 1 to 30 carbon atoms;
• or a cycloalkyl or aryl group, having from 5 to 12 carbon atoms;
• y is 0 or 1;
• and n is a value from 1 to 500 depending on the molecular weight of the polyether used to prepare the sulfobetaine or hydroxysultaine, wherein the polyether is derived from ethylene oxide and has a molecular weight in the range of 100 to 20,000 g/mol.