Confined Crystal Melting in Edgeless Poly(L-lactic acid) Crystalsomes

Staub Mark C.; Li Ruipeng; Fukuto Masafumi; Li Christopher Y.

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Confined Crystal Melting in Edgeless Poly(L-lactic acid) Crystalsomes

机译：狭窄的晶体熔化在无线纤维（L-乳酸）晶体中

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Polymer single crystals tend to be quasi two-dimensional (2D) lamellae and their small lateral surfaces are the starting points of lamella melting and thickening. However, the recently discovered crystalsomes, which are defined for hollow single crystal-like spherical shells, are edgeless, self-confined, and incommensurate with translational symmetry. This work concerns the structure and melting behavior of these edgeless crystalsomes. Poly(L-lactic acid) crystalsomes were grown using a miniemulsion solution crystallization method. Differential scanning calorimetry and in situ wide-angle X-ray diffraction were used to follow the structural evolution of the crystalsomes upon heating. Our results demonstrated that the structure and melting behavior of crystalsomes are curvature-dependent and significantly different from their flat crystal counterpart.

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《ACS Macro Letters》 |2020年第12期|共6页
作者
Staub Mark C.; Li Ruipeng; Fukuto Masafumi; Li Christopher Y.;
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Drexel Univ Dept Mat Sci &

Engn Philadelphia PA 19104 USA;

Brookhaven Natl Lab Natl Synchrotron Light Source 2 Upton NY 11973 USA;

Brookhaven Natl Lab Natl Synchrotron Light Source 2 Upton NY 11973 USA;

Drexel Univ Dept Mat Sci &

Engn Philadelphia PA 19104 USA;

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正文语种 eng
中图分类有机化学;
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2. Preparation of Poly (L-lactic acid)/Vermiculites Composites by in situ Copolymerization of Lactic Acid and Hydroxylic Vermiculites [J] . XU Hong, LIU Huan, MA Hui, 东华大学学报（英文版） . 2012,第004期
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Confined Crystal Melting in Edgeless Poly(L-lactic acid) Crystalsomes

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