基于氢键作用的超分子弹性体材料的研究进展

超分子弹性体是指在分子（包括小分子和大分子）间通过氢键、离子键、配位键等非共价键结合的,在常温下具有与传统弹性体材料类似高弹性和流变特性的一类新型材料,同时由于其特殊的分子键作用方式,超分子弹性体还具有与传统弹性体不同的特性,如可逆热塑性、自修补性、热敏性和良好的加工性等。文中综述了近年来国内外在氢键型超分子弹性体的合成、制备与表征等方面的研究进展,并指出其发展趋势。

Progress on the Supramolecular Elastomers Based on Hydrogen Bonds

Supramolecular elastomers are linear chains of low molar mass monomers or polymers held together by reversible and highly directional non-covalent interactions,such as hydrogen bond,ionic bond and coordinate bond,which showed rubber-like rheological,elastic or mechanical properties under room temperature,due to their macromolecular architecture.However,the fact that non-covalent interactions are involved means that the assembly can be reversibly broken and can be under thermodynamic equilibrium.This reversibility brings additional features compared to usual polymers,which potentially lead to new properties,such as reversible plastic,improved processing,thermo-sensitivity,self-healing behavior or stimuli responsiveness.In this paper,the synthesis,preparation and characterization of supramolecular elastomers based on polymer or low mass monomers were reviewed,also the research trends of supramolecular elastomer based on hydrogen bond were detailed.