Amphiphilic thickener for personal care

A method of preparing an amphiphilic thickener, comprising:

• preparing an oil-in-water emulsion composition including an aqueous phase including a water-soluble monomer represented by the following Chemical Formula 1 and a crosslinkable monomer, and an oil phase including a silicone-containing monomer represented by the following Chemical Formula 2 and a non-polar organic solvent;
• preparing a water-in-oil reverse phase emulsion composition by raising a temperature to 60° C. or higher;
• and
• adding a reaction initiator and performing polymerization to prepare a crosslinked polymer,
• wherein
• R1 is —H, —CH3, —CH2CH3, or —(CH2)mCH3, and here m=1 to 3,
• R2 is —OX, NH2, or —NH—R3—SO3Y,
• R3 is —(CH2)—, —(CH2)2—, —(CH2)3—, —(CH2)4—, —(CH2)2(CH3)2—, or —(CH2)3CH3—, and
• X and Y are H+, Na+, Li+, K+, or NH3+ and may be the same,
• wherein
• m is an integer from 1 to 5,
• n is an integer from 10 to 5000,
• R1 is hydrogen or a C1-3 alkyl group, and
• R2 is a hydroxyl group, a C1-3 alkyl group, or a vinyl group.

A method of preparing an amphiphilic thickener, comprising:

• dissolving a water-soluble monomer represented by the following Chemical Formula 1, a crosslinkable monomer, and a silicone-containing monomer represented by the following Chemical Formula 2 in an alcohol-based solvent;
• raising a temperature to 60° C. or higher;
• and
• adding a reaction initiator and performing polymerization to prepare a crosslinked polymer,
• wherein
• R1 is —H, —CH3, —CH2CH3, or —(CH2)mCH3, and here m=1 to 3,
• R2 is —OX, NH2, or —NH—R3—SO3Y,
• R3 is —(CH2)—, —(CH2)2—, —(CH2)3—, —(CH2)4—, —(CH2)2(CH3)2—, or —(CH2)3CH3—, and
• X and Y are H+, Na+, Li+, K+, or NH3+ and may be the same,
• wherein
• m is an integer from 1 to 5,
• n is an integer from 10 to 5000,
• R1 is hydrogen or a C1-3 alkyl group, and
• R2 is a hydroxyl group, a C1-3 alkyl group, or a vinyl group.