Temperature and composition effects on polymorphism changes in cold-crystallized miscible blends of syndiotactic and atactic polystyrenes

Ya Sen Sun, Eamor Woo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The temperature and composition effects on polymorphism changes in cold-crystallized miscible blends of syndiotactic polystyrenes (sPS) and atactic polystyrenes (aPS) were analyzed. The neat sPS and sPS/aPS blends of 75/25, 50/50, and 25/75 compositions were examined. The melting behavior and thermal treatments on the samples were performed with a differential scanning calorimeter equipped with a mechanical intracooler. The polymorphism of cold-crystallized 50/50 and 25/75 sPS/aPS blends showed a significant change with increasing aPS contents in the miscible blends.

Original languageEnglish
Pages (from-to)176-180
Number of pages5
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume40
Issue number1
DOIs
Publication statusPublished - 2002 Jan 1

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Composition effects
Polystyrenes
polymorphism
Polymorphism
Thermal effects
temperature effects
polystyrene
Calorimeters
calorimeters
Melting
Heat treatment
melting
Scanning
scanning

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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AB - The temperature and composition effects on polymorphism changes in cold-crystallized miscible blends of syndiotactic polystyrenes (sPS) and atactic polystyrenes (aPS) were analyzed. The neat sPS and sPS/aPS blends of 75/25, 50/50, and 25/75 compositions were examined. The melting behavior and thermal treatments on the samples were performed with a differential scanning calorimeter equipped with a mechanical intracooler. The polymorphism of cold-crystallized 50/50 and 25/75 sPS/aPS blends showed a significant change with increasing aPS contents in the miscible blends.

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