화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터)
권호 41권 1호
발표분야 고분자합성
제목 Preparation of High-Molecular-Weight Branched Poly(1,4-butylene Carbonate-Co-Terephthalate) and Its Properties
초록 Dimethyl carbonate (DMC) is an attractive candidate as a sustainable monomer. 1,4-Butanediol (BD) can be also considered as a green monomer. Branched poly[1,4-butylene carbonate-co-terephthalate]s (PBCTs) has been synthesized by the addition of a small amount of trifunctional or tetrafunctional alcohol monomers in the polycondensation of BD, DMC and dimethyl terephthalate(DMT) and their properties have been investigated. When alcohol monomers were fed, an high MW was reached in a short reaction time, and the yield increased to higher than 90%. The generated PBCTs were a semicrystalline polymer. The crystallization rate increased with increasing terephthalate content and branch content. The branched PBCT exhibited more pronounced toughness in tensile test while providing the advantage of processibility at high shear rates due to the pronounced shear thinning in melt. The PBCTs were degradable by a buffer solution containing a lipase.
저자 김진구, 이분열
소속 아주대
키워드 PBC; PBCT; DMC; green chemistry; condensation
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