| 학회 | 한국공업화학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 23권 2호 |
| 발표분야 | 포스터_환경·에너지 |
| 제목 | Selective isomer synthesis of isosorbide-based sulfonate anionic surfactants |
| 초록 | Two series of anionic surfactants (endo-5-Oalkyl isosorbide-2-O-propyl sulfonic acid sodium salt and exo-2-O-alkyl isosorbide-5-O-propyl sulfonic acid sodium salt) with straight alkyl chains (hexyl, octyl, decyl, and dodecyl) were synthesized from isosorbide derived from biomass, through steps of allylation, alkylation, and sulfonation. The selectivity and efficiency of the reactions were optimized by adjusting the solvent, catalyst, reactant molar ratio, and temperature. The product 2-O-allyl isosorbide was obtained with a yield of 81% and selectivity of 23:1 (endo:exo), and 2-O-alkyl isosorbide was obtained with a yield of 72% and selectivity of 24:1 (exo:endo). The synthesized anionic surfactants were characterized using the critical micelle concentration(CMC), surface activity, emulsion stability, foaming height, and the Turbiscan Stability Index. The CMC decreased with increasing alkyl chain length. The properties of endo form and exo form were compared. |
| 저자 | 조정은1, 남석현1, 정노희1, 강호철2 |
| 소속 | 1충북대, 2한국화학(연) |
| 키워드 | Isosorbide; Surfactants; Surface tension; Critical micelle concentration; Foam stability |
