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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국고분자학회 폴리머 폴리머 제39권 제6호
- 발행연도
- 2015.11
- 수록면
- 889 - 895 (7page)
- DOI
- 10.7317/pk.2015.39.6.889
이용수
초록· 키워드
오류제보하기
The solvent casted poly(ethylene glycol) (PEG) and poly(lactic acid) (PLA) blend was recrystallized by the thermal treatment of a heating and cooling cycle. The high PEG content blend (30 wt%) showed a striking dispersion behavior, that the materials rapidly dispersed and dissolved in the aqueous environment in a few hours. This phenomenon has not been reported by others, and was not observed in low PEG content samples of 5%, 10%, and 20%, or quenched(amorphous) samples. We hypothesized the mechanism that the chain rearrangement during the thermal treatment leads to the phase separation. And with the phase separation in the recrystallized samples, the PEG potions rapidly dissolved in the aqueous environment, left out the small PLA spherulites being separated and dispersed in the solution. The same underlying reason can also be inferred from the degradation behaviors of other samples. Characterizations of DSC, XRD, and SEM have been done to validate our hypothesis.
목차
Abstract
Introduction
Experimental
Results and Discussion
Conclusions
References
참고문헌 (20)
참고문헌 신청
[학술지(정기간행물)] - K. M. Nampoothiri / 2010 / / Bioresour. Technol 101 : 8493 ~
[학술지(정기간행물)] - L. T. Lim / 2008 / / Prog. Polym. Sci 33 : 820 ~
[학술지(정기간행물)] - P. Bordes / 2009 / / Prog. Polym. Sci 34 : 125 ~
[학술지(정기간행물)] - R. M. Rasal / 2010 / / Prog. Polym. Sci 35 : 338 ~
[학술지(정기간행물)] - 육군영 / 2009 / 생분해성을 갖는 초다공성 수화젤의 제조 및 특성분석 / 폴리머 33 (5) : 469 ~ 476
[학술지(정기간행물)] - L. T. Lim / 2008 / / Prog. Polym. Sci 33 : 820 ~
[학술지(정기간행물)] - P. Bordes / 2009 / / Prog. Polym. Sci 34 : 125 ~
[학술지(정기간행물)] - R. M. Rasal / 2010 / / Prog. Polym. Sci 35 : 338 ~
[학술지(정기간행물)] - 육군영 / 2009 / 생분해성을 갖는 초다공성 수화젤의 제조 및 특성분석 / 폴리머 33 (5) : 469 ~ 476
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UCI(KEPA) : I410-ECN-0101-2016-578-002164472