Before revision: To date, researchers have considered various interactions between polymer and solvent/cosolvent as possible factors leading to the cononsolvency effect, such as competitive hydrogen bonding of the solvent and cosolvent with the polymer, hydrophobic hydration of particular functional groups of the polymer, cosolvent induced geometric frustration, excluded-volume interactions due to the surfactant-like behavior of amphiphilic cosolvents, as well as the three body effects, i.e., temporary bridging of two or more individual polymer chains by the cosolvent.
After revision: To date, researchers have considered various interactions between polymer and solvent/cosolvent as possible factors leading to the cononsolvency effect, such as competitive hydrogen bonding of the solvent and cosolvent with the polymer, hydrophobic hydration of particular functional groups of the polymer, cosolvent induced geometric frustration, excluded-volume interactions due to the surfactant-like behavior of amphiphilic cosolvents, as well as the three body effects, i.e., temporary bridging of one or more individual polymer chains by the cosolvent.