Poly(imine-amide)Hybrid Covalent Adaptable Networks via in situ Oxidation Polymerization
作者机构：Department of ChemistryUniversity of Colorado BoulderBoulderColorado80309USA RockyTech Ltd.BoulderColorado80309USA Department of Mechanical EngineeringUniversity of Colorado DenverDenverColorado80217USA
出 版 物：《高分子科学:英文版》 (Chinese Journal of Polymer Science)
年 卷 期：2023年第41卷第10期
页 面：1577-1583页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：the University of Colorado Boulder and the National Science Foundation (No. 49100423C0008 Y.J.) for financial support
主 题：Covalent adaptable networks Polyimine Polyamide In situ oxidation polymerization
摘 要：Polyimine represents a rapidly emerging class of readily accessible and affordable covalent adaptable networks(CANs)that have been extensively studied in the past few *** being highly malleable and recyclable,the pioneering polyimine materials are relatively soft and not suitable for certain applications that require high mechanical *** studies have demonstrated the possibility of significantly improving polyimine properties by varying its monomer building blocks,but such component variations are usually not straightforward and can be potentially challenging and ***,we report an in situ oxidation polymerization strategy for preparation of mechanically strong poly(imine-amide)(PIA)hybrid CANs from simple amine and aldehyde *** converting a portion of reversible imine bonds into high-strength amide linkages in situ,the obtained hybrid materials exhibit gradually improved Young’s modulus and ultimate tensile strength as the oxidation level ***,the PIAs remain reprocessable and can be depolymerized into small molecules and oligomers similar as *** work demonstrates the great potential of the in situ transformation strategy as a new approach for development of various mechanically tunable CANs from the same starting building blocks.
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