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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.).

Original languageEnglish
Article number1600570
JournalMacromolecular Chemistry and Physics
Volume218
Issue number8
DOIs
Publication statusPublished - Apr 1 2017

Fingerprint

Hydrogels
Amines
copolymers
Polyvinyls
Copolymers
Phase transitions
amines
Polymers
Temperature
temperature
polymers
Greenhouse effect
greenhouse effect
Polyamines
hydrogel film
polyvinylamine
energy consumption
absorbents
Polyacrylates
Particles (particulate matter)

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "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",
abstract = "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.).",
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AU - Yue, Mengchen

AU - Imai, Kenta

AU - Yamashita, Chie

AU - Miura, Yoshiko

AU - Hoshino, Yu

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