Name AMB AME AMG AMM AEB AEG CaMB CaMG DMB DMG DMM MMB MMG MMM 2005 ANNUAL SCIENTIFIC SEMINAR The quats studied conform to the following st111cture· R2 I R'-N+-R1 er I R2 The preferred definitions for the study groups are· R1 I Alkyl (Cl2) 2 Ricinoleylamidopropyl 3 Dilinoleylamidopropyl 4 Cocamidopropyl R2 I. Methyl 2. 2-hydroxy ethyl R3 I. Methyl 2. Benzyl 3. Glyceryl Table I Co111pounds Studied R' R' Alkyl (Cl2) CH, Alkyl (Cl2) CH,CH20H Alkyl (CI2) CH3 Alkyl (CI2) CH, Alkyl (CJ2) CH2CH20H Alkyl (C12) CH2CH20H Castor Amido CH1 Castor Amido CH1 Dimer Amido CH1 Dimer Amido CH, Dimer Amid o CH1 Cocamido CH, Cocamido CH, Cocamido CH1 -CH1 -Clh-C6H, -CH2-CH(OH)-CH2-0H R' De�riotion Benzyl Coco dimethyl benzyl ammonium chloride CHJ Coco di-2 hydroxyethyl methyl ammonium chloride Glyceryl Coco dimethyl Glyceryl ammonium chloride CH1 Coco tri-methyl ammonium chloride Benzyl Coco di-2 hydroxyethyl benzyl ammonium chloride Glyceryl Coco di-2 hydroxyethyl glyceryl ammonium chloride Benzyl Ricinoleylamidopropyl dimethyl benzyl ammonium chloride Glyceryl Ricinoleylamidopropyl dimethyl glyceryl ammonium chloride Benzyl D1hnoleylamidopropyl dimethyl benzyl ammon1um chloride Glyceryl Dilinoleylamidopropyl dimethyl glyceryl ammonium ch.loride CH3 Dilinoleylamidopmpyl trimethyl ammonium chloride Benzyl Cocamidopropyl dimethyl benzyl ammonium chloride Glyceryl Cocam1dopropyl dimethyl glyceryl ammonium chloride CH1 Cocamidopropyl trimethyl ammonium chloride 457

458 JOURNAL OF COSMETIC SCIENCE RESULTS Soft Quats - Gel Formers (100 g of 10% solution of anionic, titrated with 10% solution of quat) Quat Soft quats in SLS Quat Sample Soft quats in SLS-J Sample (\'iscosity of 2cl) (viscositv of e:el) 14,000 AME 7,000 13,400 DMM 6,200 DMM 6,000 MMM 50,000 Ca:MB 1,000 Ca:MB 1,000 M:MG 19,200 AMG 1,000 DMG 12,000 Miv1B 9,800 MMG 40,000 DMG 6,800 AEG 1,000 CaMG 1,000 CONCLUSIONS Quaternium compounds can be classified as hard or soft by their ability to form gelled systems with anionic systems. Cationic systems that form a gel at near stoichiometric amounts are classified as "soft", those that form precipitates of haze without appreciable viscosity build up are classified as "hard" quats. "Soft quats" can produce foam in the systems they gel, albeit at levels below the volume of foam generated by the anionic, per se. Quaternium compounds titrated with sodium laureth-3-sulfate (SLES) produced greater viscosities with amido quats. The exception was amido quats containing a benzyl group, which exhibited a low viscosity in SLES. This study was sponsored by Phoenix Chemical (Somerville N.J.) and SurfaTech Corporation (Dacula, Ga). It was conducted by Thomas O'Lenick a senior chemistry major at Georgia Southern University (synthesis) and Tim Brockman is a junior Chemistry major at Bloomsburg College (evaluation).