화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 고분자합성
제목 The effect of polymerization conditions on chemical structure and physical properties of bio-based polyurethane using isosorbide as an extender
초록 Bio-based polyurethanes (bio-PU) from 4,4'-methylene diphenyl diisocyanate, poly (tetramethylene ether glycol), and isosorbide (ISB) were successfully synthesized with respect to polymerization conditions. Compared to conventional chain extender, 1,4-butanediol, the ISB exhibited lower reactivity due to asymmetric chemical structure. In this regard, we explored the effects of the three parameters including the amount of catalyst and solvent, and polymerization temperature on molecular weight (MW) and physical properties of bio-PUs to optimize their synthetic conditions. The MW, chemical structure, and physical properties of the synthesized bio-PUs were evaluated using NMR, FT-IR, DSC, rheology, and tensile characterization. Among various preparation methods, interestingly, desirable bio-PUs with the highest MW and related mechanical strength were obtained by a solvent- and catalyst free condition.
저자 정지훈, 엄영호, 김효정, 김진경, 조동근
소속 부경대
키워드 Urethane; Bio-based
E-Mail eomyh@pknu.ac.kr