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논문 기본 정보

자료유형
학술저널
저자정보
Furukawa, Mutsuhisa (Department of Materials Science end Engineering. Faculty of Engineering, Nagaski University) Wakiyama, Kiyotaka (Department of Materials Science end Engineering. Faculty of Engineering, Nagaski University) Shiiba, Tetsuro (Department of Materials Science end Engineering. Faculty of Engineering, Nagaski University)
저널정보
한국고무학회 Elastomers and composites 엘라스토머 및 콤포지트 제34권 제4호
발행연도
1999.1
수록면
292 - 298 (7page)

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Lactide oligomer with number averagae molecular weight of 460 was synthesized and reacted with poly(oxyteramethylene)glycol(PTMG, Mn = 650) to obtain oligolactide oligomer-terminated PTMG. Polyurethanes were synthesized from the oligolactide-terminated PTMG, 4,4'-diphenylmethane diisocyanate, and 1,4-butanediol. The mechanical and thermal properties of the polyurethanes and PTMG based polyurethane as control were measured by means of DSC and tensile tester. Degradation behavior of these polyurethanes put into a compost was evaluated by variation of mechanical properties, surface state, and weight loss. Modulus and weight significantly decreased with increasing time. The surface of the oligolactide polyurethane put into the compost during 6 weeks had a number of voids. On the other hand, These properties of the PTMG based polyurethane as control did not change. These results suggest that the novel polyurethanes incorporated oligolactide easily degrade under biodegradable condition.

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