Cosolvent effect on the phase behavior for the poly(benzyl acrylate) and poly(benzyl methacrylate) in supercritical carbon dioxide and dimethyl ether

Yoon Seok Jang, Jeong Won Kang, Hun Soo Byun

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Experimental cloud-point data up to 433.2. K and 193.0. MPa are reported for binary and ternary mixtures of poly(benzyl methacrylate) [poly(BzMA)] + carbon dioxide + benzyl methacrylate (BzMA) and poly(benzyl acrylate) [Poly(BzA)] + carbon dioxide + benzyl acrylate (BzA) systems. High-pressure cloud-point data are also reported for Poly(BzMA) + carbon dioxide and Poly(BzA) + carbon dioxide in supercritical dimethyl ether (DME). Cloud-point behavior for the Poly(BzMA) + carbon dioxide + BzMA system was measured in changes of the pressure-temperature (p-T) slope, and with BzMA weight fraction of 50.6, 61.0, 67.2 and 95.0. wt.%. The Poly(BzA) + carbon dioxide + 30.4, 40.7 and 49.4. wt.% BzA systems change the (p-T) curve from upper critical solution temperature region (UCST) to lower critical solution temperature (LCST) region as the BzA concentration increases. With 52.3. wt.% BzA to the Poly(BzA) + carbon dioxide solution, the cloud-point curves are taken on the appearance of a typical lower critical solution temperature boundary. Also, the impact by cosolvent (BzMA and BzA) concentrations for the Poly(BzMA) + DME and Poly(BzA) + DME systems is measured at temperature to 453.2. K and pressure range of 24.6-61.3 MPa.

Original languageEnglish
Pages (from-to)598-601
Number of pages4
JournalJournal of Industrial and Engineering Chemistry
Volume16
Issue number4
DOIs
Publication statusPublished - 2010 Jul

Keywords

  • CO
  • Dimethyl ether
  • Phase behavior
  • Poly(benzyl acrylate)
  • Poly(benzyl methacrylate)

ASJC Scopus subject areas

  • Chemical Engineering(all)

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