Melt stability of 8-arms star-shaped stereocomplex polylactide with three-dimensional core structures

Title
Melt stability of 8-arms star-shaped stereocomplex polylactide with three-dimensional core structures
Authors
Purba Purnama정영미김수현
Keywords
Melt stability; Polylactide; Stereocomplex; Star polymers; Structure
Issue Date
2013-05
Publisher
Polymer degradation and stability
Citation
VOL 98, NO 5, 1097-1101
Abstract
The melt stability of star-shaped stereocomplex polylactide with different core structure by tripentaerythritol (TPE) and polyhedral oligomeric silsesquioxane-octahydroxypropyldimethylsilyl (POSS(OH)8) compounds was investigated. The three-dimensional (3D) core structures affect the ability of star-shaped stereocomplex polylactide to preserve stereocomplex crystallite after melted. The exact position and proper space distribution of arm result in low chain freedom of itself which affects the ability of each arm to reassemble stereocomplex crystallites after melted. The result confirmed that the inorganic POSS(OH)8 core molecule has better support to maintain melt stability compare to TPE core.
URI
http://pubs.kist.re.kr/handle/201004/45258
ISSN
01413910
Appears in Collections:
KIST Publication > Article
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