Thermoresponsive synergistic hydrogen bonding switched by several guest units in a water-soluble polymer.

Zhenhua Hao, Guangxiang Li, Ke Yang, Yuanli Cai

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.

Macromolecular rapid communications 2013 Mar 12

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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. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Zhenhua Hao, Guangxiang Li, Ke Yang, Yuanli Cai. Thermoresponsive synergistic hydrogen bonding switched by several guest units in a water-soluble polymer. Macromolecular rapid communications. 2013 Mar 12;34(5):411-6