Effects of Hydrophobic Modifications and Phase Transitions of Polyvinylamine Hydrogel Films on Reversible CO2 Capture Behavior: Comparison between Copolymer Films and Blend Films for Temperature-Responsive CO2 Absorption

Mengchen Yue, Kenta Imai, Chie Yamashita, Yoshiko Miura, Yu Hoshino

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The separation of CO2 from large emission sources is essential to both mitigate the greenhouse effect, as well as generate carbon-based energy. However, energy consumption of conventional CO2 separation processes, which using aqueous amine solution as absorbent, is too large. It is has been previously reported that hydrogel films that are consisting of temperature-responsive amine-containing polymers can be energy efficient CO2 absorbent—the films can reversibly capture and release large amount of CO2 via temperature-induced phase transition of hydrogels. However, the study is limited to the films consisting of gel particles of polyacrylamides. In this study, a series of hydrogel films consisting of a mass-produced amine-containing linear polymer, polyvinyl amine (PVAm), are prepared, and the efficiencies of their reversible CO2 capture are tested. The effects of hydrophobic modifications and the temperature dependent phase transition behaviors of the films on the reversible CO2 capture efficiency are studied in detail. The function of hydrogel films containing modified PVAm (copolymers), as well as blend films of nonmodified PVAm and 100% modified PVAm, are compared for the first time. The results reveal that the reversible CO2 capture efficiency of polyamine films can be improved just by blending with temperature-responsive polymers. (Figure presented.).

元の言語英語
記事番号1600570
ジャーナルMacromolecular Chemistry and Physics
218
発行部数8
DOI
出版物ステータス出版済み - 4 2017

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

フィンガープリント Effects of Hydrophobic Modifications and Phase Transitions of Polyvinylamine Hydrogel Films on Reversible CO<sub>2</sub> Capture Behavior: Comparison between Copolymer Films and Blend Films for Temperature-Responsive CO<sub>2</sub> Absorption' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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