Polyimines are classified as polymer materials that contain imine groups, which are characterised by a double bond between a carbon and nitrogen atom. [1] . The term polyimine can also be found occasionally in covalent organic frameworks (COFs). In (older) literature, polyimines are sometimes also referred to as poly (azomethine) or polyschiff.

2024年5月16日 · This study affords a facile way to synthesize bio-based polyimine networks that combination high T g, acid-degradability, reprocessability, and fire-safety for the sustainable development of traditional polyimine thermosets.

2024年12月1日 · The polyimine material that forms a cross-linking network can rapidly achieve bond exchange at high temperatures, which is becoming a potential substrate for carbon loaded materials. In this work, a novel composite material is successfully prepared by incorporating cost-effective graphite felt (GF) with excellent electrical properties into a ...

1983年1月1日 · The polymerization of terephthalaldehyde and hexamethylenediamine to obtain a film-forming high molecular weight polyimine solution was considerably facilitated through the use of m-cresol as a...

CO‐polyimine materials (PIMs) films are successfully synthesized by copolymerization and evaluated. Owing to the presence of π – π conjugation effects and steric effects as well as the high cross‐linking density of dynamic imine bonds, CO‐PIMs films as thermosets not only exhibit excellent mechanical strength and self‐healable ...

2023年10月31日 · Numerous investigations on -conjugated polymers have been conducted. Poly (azomethine)s, known as polyimines or Schiff base polymers. These polymers are mainly obtained by polycondensation...

2024年12月16日 · Polymer aerogels, with their porous and lightweight features, excel in applications such as energy storage, absorption, and thermal insulation, making them a sought-after new material.

2023年4月23日 · Here, polyimine dynamic networks based on two monomers with bulky pendant groups, which not only displayed mechanical properties higher than the strong and tough polymers, e.g., polycarbonate, but also excellent self-repairing capability and recyclability as thermosets are developed.

2020年5月13日 · A family of biobased polyimine elastomeric vitrimers was synthesized by reactions between di- and trifunctional polyetheramines and a furan-based dialdehyde. By varying the triamine to diamine rati...

2024年2月1日 · The obtained polyimine material showed excellent reprocessing performance and recyclability in a short time under mild conditions due to the existence of two kinds of the dynamic covalent bonds including the disulfide bond (-S-S-) and reversible imine bond (-C = N-) in its cross-linked network.