Prediction and experimental verification on blend phase diagrams of two structurally isomeric polymers: Poly(4-methylstyrene) and poly(α-methylstyrene)

L. L. Chang, Eamor Woo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The phase behavior of blends comprising two isomeric polymers, poly(4-methylstyrene) (P4MS) and poly(α-methylstyrene) (PαMS), was analyzed. Both model prediction and experimental confirmation were conducted. At low PαMS molecular weights, the polymer blends were miscible with the lower critical solution temperature (LCST) at about 140 °C. A model based on a modified Flory-Huggins interaction expression was then developed using the experimental phase diagram of miscible blends comprising low molecular weight constituents. At higher molecular weights, the P4MS/PαMS mixtures became immiscible.

Original languageEnglish
Pages (from-to)6892-6895
Number of pages4
JournalMacromolecules
Volume33
Issue number18
DOIs
Publication statusPublished - 2000 Sep 5

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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