A zwitterionic “schizophrenic” copolymer with dual-responsiveness to temperature and carbon dioxide self-assembles to undergo a reversible phase transition in a weakly alkaline borate buffer solution. It can be switched “on” and “off” when sequentially treated with carbon dioxide/nitrogen (CO2/N2) due to the protonation–deprotonation of the tertiary amine groups along the polymer skeleton.
X. Tang, Q. Zhang and M. Pei, RSC Adv., 2017, 7, 1567 DOI: 10.1039/C6RA28018H
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