Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2019 Aug 31;9(9):113. doi: 10.3390/membranes9090113

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Robeson upper bound plots comparing the CO₂/CH₄ (a) and CO₂/N₂ (b) separation performance capabilities of the copolymer membranes with other reported PIM-PIs and common PIs; data taken from references [3,4,5,6,7,10,13,15,17,23,24,25,33].