Control of osmotic pressure through CO2-capture and release facilitated by the lower critical solution temperature (LCST) phase transition of acylated branched polyethylenimine

Jeongseon Park, Minwoo Noh, Min Keun Chey, Yeongbong Mok, Ji Hun Seo, Yan Lee

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A solution of acylated polyethylenimine can absorb CO2 at low temperatures to elevate the osmotic pressure and draw water from a high-salt saline solution. Such a solution can be phase-separated to liberate CO2 by mild heating at 40°C, and the osmotic pressure can be effectively reduced for water release into a low-salt saline solution. The osmotic pressure-controlling system has the potential to be used as a draw solution for forward osmosis.

Original languageEnglish
Pages (from-to)26526-26530
Number of pages5
JournalRSC Advances
Volume6
Issue number32
DOIs
Publication statusPublished - 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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