Novolac-based poly(1,2,3-triazolium)s with good ionic conductivity and enhanced CO2 permeation

Lvyuan Ye; Liqiang Wan; Junkun Tang; Yujing Li; Farong Huang

doi:10.1039/c8ra00541a

Novolac-based poly(1,2,3-triazolium)s with good ionic conductivity and enhanced CO₂ permeation

RSC Adv. 2018 Feb 26;8(16):8552-8557. doi: 10.1039/c8ra00541a. eCollection 2018 Feb 23.

Authors

Lvyuan Ye¹, Liqiang Wan¹, Junkun Tang¹, Yujing Li¹, Farong Huang¹

Affiliation

¹ Key Laboratory of Specially Functional Polymeric Materials and Related Technology, School of Materials Science and Engineering, East China University of Science and Technology, Ministry of Education Shanghai 200237 China fhuanglab@ecust.edu.cn +86-021-64251110.

Abstract

Novolac-based poly(1,2,3-triazolium)s with 1,2,3-triazolium side groups spaced by oligo(ethylene glycol), a new kind of poly(ionic liquid) membrane, was prepared via the well-known Click chemistry (1,3-dipolar cycloaddition reaction). The thermal properties, ionic conductivity and gas permeation performance of these self-standing membranes were investigated. The obtained membranes exhibit glass transition temperatures ranging from -1 °C to -7.5 °C, and a temperature at 10% weight loss above 330 °C. These membranes have good ionic conductivity (σ _DC up to 5.1 × 10^-7 S cm^-1 at 30 °C under anhydrous conditions) as compared with the reported 1,2,3-triazolium-based crosslinked polymers. And they could be potentially used for CO₂ separation as they exhibit enhanced CO₂ permeability up to 434.5 barrer at 4 atm pressure.