| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 | 19권 2호 |
| 발표분야 | 화학공정_포스터 |
| 제목 | Preparation of diisocyanate and polyol chain extender from lignin biomass for the functional polymerization of polyurethane |
| 초록 | Polyurethane(PU) is one of the most useful chemical polymer in our life. Global market of PU grows bigger but toxic synthesis process that requires phosgene causes environmental problems. To avoid this problem, PU can be produced easily be chemical synthesis. In this study, to synthesis vanillin derived isocyanate and polyol, we dimerize vanillin and DHBA. With FeCl3 catalyst, it shows about 75% of dimerization yield. These dimers are modified with dicarboxylic acid and Curtius rearrangement for isocyanate synthesis, and modified with monoethanol amine as a polyol. Polyurethane synthesized with this divanillin-MEA as a chain extender shows significant physical properties than MDI derived PU. Divanillin were characterized by MALDI-TOF, UV-spectrum and H-NMR. These polyol and isocyanate can be used for PU synthesis, respectively. |
| 저자 | 김병기1, 이대수2, 최권영3, 이대우2, 강해민1 |
| 소속 | 1서울대, 2전북대, 3아주대 |
| 키워드 | Lignin; Biomass; polyurethane |
