Van der Waals condensed behavior of polymer fluids

Bao Fu Qiao*, De Lu Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The condensed behavior of polymer fluids was studied based on the van der Waals interaction. By comparing the phase diagram of pure polymer fluids and that of van der Waals non-ideal fluids, it is found that (1) pure polymer fluids show a similar phase diagram to van der Waals non-ideal fluids; (2) the differences between the phase diagrams were caused by the difference of chain lengths. It is explained why the vapor pressure of polymer is hard to detect and why the negative pressure can exist in polymer liquids. It is also found that some scaling relations exist between the reduced critical pressure and the chain length, and the reduced critical volume and the chain length.

Original languageEnglish (US)
Pages (from-to)1779-1781
Number of pages3
JournalGaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities
Issue number9
StatePublished - Sep 1 2006


  • Negative pressure
  • Phase diagram
  • Polymer fluid
  • Van der Waals interaction
  • Vapor pressure

ASJC Scopus subject areas

  • Chemistry(all)


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