title: Thermoresponsive synergistic hydrogen bonding switched by several guest units in a water-soluble polymer.
abstract: Thermoresponsive synergistic hydrogen bonding (H-bonding) switched by several guest units in a water-soluble polymer is reported. Adjusting the distribution of guest units can effectively change the synergistic H-bonding inside polymer chains, thus widely switch the preorganization and thermoresponsive behavior of a water-soluble polymer. The synergistic H-bonding is also evidenced by converting less polar aldehyde groups into water-soluble oxime groups, which bring about the lowering-down of cloud point and an amplified hysteresis effect. This is a general approach toward the wide tunability of thermosensitivity of a water-soluble polymer simply by adjusting the distribution of several guest H-bonding units.
authors.affiliation: Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Hao
authors.forename: Guangxiang
authors.initials: G
authors.lastname: Li
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.forename: Yuanli
authors.initials: Y
authors.lastname: Cai
mesh_terms: D006860:Hydrogen Bonding; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D013696:Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D011108:Polymers; D014867:Water