Design and preparation of thermo-responsive vinylamine-containing micro-gel particles for reversible absorption of carbon dioxide

Mengchen Yue, Kenta Imai, Yoshiko Miura, Yu Hoshino

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To obtain a temperature-responsive CO2 absorbent with a high amine content, temperature-responsive gel particles (GPs) consisting of poly(N-isopropylacrylamide-co-polyvinylamine) (poly(NIPAm-co-VAm)) were designed and prepared. Stable poly(N-isopropylacrylamide) GPs with a high N-vinylformamide (NVF) content were prepared in aqueous media by optimization of the concentrations of the surfactant and monomers used in the polymerization step. GPs with a high polyvinylamine (pVAm) content up to 3.2 mmol amine per g GPs (∼30 mol%) were prepared as a stable aqueous solution via the complete and selective hydrolysis of pNVF in the poly(NIPAm-co-NVF) GPs in a methanol solution, then dialyzed against water. The GPs with 3.2 mmol amine per g GPs pVAm showed a volume phase transition at a temperature of ∼65 °C. Conductivity experiments established that the aqueous solution of the poly(NIPAm-co-VAm) GPs reversibly absorbed CO2 in response to a small thermal stimulus (30-75 °C). In addition, the foaming of amine-functionalized GP solutions during CO2 bubbling was prevented by increasing the amount of crosslinking in the GPs.

Original languageEnglish
Pages (from-to)601-606
Number of pages6
JournalPolymer Journal
Volume49
Issue number8
DOIs
Publication statusPublished - Aug 1 2017

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Carbon Dioxide
Particles (particulate matter)
Carbon dioxide
Gels
Amines
Surface-Active Agents
Crosslinking
Temperature
Methanol
Hydrolysis
Surface active agents
Monomers
Phase transitions
Polymerization
polyvinylamine
Water

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Design and preparation of thermo-responsive vinylamine-containing micro-gel particles for reversible absorption of carbon dioxide. / Yue, Mengchen; Imai, Kenta; Miura, Yoshiko; Hoshino, Yu.

In: Polymer Journal, Vol. 49, No. 8, 01.08.2017, p. 601-606.

Research output: Contribution to journalArticle

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