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 journalArticle

2 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 Jan 1

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Polyethyleneimine
Phase transitions
Sodium Chloride
Salts
Osmosis
Water
Temperature
Heating

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Control of osmotic pressure through CO2-capture and release facilitated by the lower critical solution temperature (LCST) phase transition of acylated branched polyethylenimine. / Park, Jeongseon; Noh, Minwoo; Chey, Min Keun; Mok, Yeongbong; Seo, Ji-Hun; Lee, Yan.

In: RSC Advances, Vol. 6, No. 32, 01.01.2016, p. 26526-26530.

Research output: Contribution to journalArticle

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