Development of partial miscibility in polycarbonate/polypropylene blends via annealing

Michael Jenkins, Stephen Kukureka, Sani Amril Samsudin

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
195 Downloads (Pure)


The morphology, dynamic mechanical properties and infrared spectra of polycarbonate (PC)/polypropylene (PP) blends were investigated. As expected, PC and PP were immiscible when blended together; however partial miscibility developed following annealing. The miscibility of one polymer in the other was examined using the modified Fox equation and the values of the Flory-Huggins polymer-polymer interaction parameter (χ12) were also calculated following the Kim and Burns approach. Moreover, the possible causes for partial miscibility in the annealed PC/PP blends were explored by infrared spectroscopy. It was concluded that annealing caused degradation of PP, leading to the formation of polar groups which were then able to interact with PC generating regions of partial miscibility.
Original languageEnglish
Pages (from-to)707-714
Number of pages8
JournalJournal of Polymer Engineering
Issue number7
Early online date9 Dec 2016
Publication statusPublished - 28 Aug 2017

Bibliographical note

Journal of Polymer Engineering, Volume 37, Issue 7, Pages 707–714, ISSN (Online) 2191-0340, ISSN (Print) 0334-6447, DOI:

©2017 Walter de Gruyter GmbH, Berlin/Boston.


  • annealing
  • blend
  • Flory-Huggins
  • partial miscibillity
  • polypropylene

ASJC Scopus subject areas

  • General Chemical Engineering
  • Polymers and Plastics
  • Materials Chemistry


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