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

Purba Purnama, Youngmee Jung, Soo Hyun Kim

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23 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1097-1101
Number of pages5
JournalPolymer Degradation and Stability
Issue number5
Publication statusPublished - 2013 May 1



  • Melt stability
  • Polylactide
  • Star polymers
  • Stereocomplex
  • Structure

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Mechanics of Materials
  • Condensed Matter Physics

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