Dynamic covalent chemistry is transforming polymer fibers by enhancing their spinnability, recyclability, and smart functionalities. This review summarizes polymer fibers based on dynamic covalent chemistry, covering their preparation, structure, and applications, and discusses future trends and challenges in their development.

This work provides a safe and convenient hair coloration approach based on melanin-like materials and photobase generators, which allows the hair to be dyed black simply by spraying a mixed solution under natural light for several days.

The elastomer SEBS is designed to confine the growth dynamics of small molecule donors and acceptors as well as the mechanical properties of blend films. The stretchability of the film is improved. This scheme promises a new strategy for the preparation of stretchable organic solar cells.

Novel poly(ε-caprolactone) (PCL)-poly(2-vinyl)ethylene glycol (PVEG) copolymers are synthesized by synergistic catalysis and a serious tunable crosslinked SMPs are afforded by facile thiol-ene photo-click reaction of the copolymers with multifunctional thiols with high shape memory performance and adjustable thermal and mechanical properties.

Novel poly(ε-caprolactone) (PCL)-poly(2-vinyl)ethylene glycol (PVEG) copolymers are synthesized by synergistic catalysis and a serious tunable crosslinked SMPs are afforded by facile thiol-ene photo-click reaction of the copolymers with multifunctional thiols with high shape memory performance and adjustable thermal and mechanical properties.

The PPDI-CPU exhibits a more regular microstructure with larger, denser spherulites, which enhances stress distribution and inhibits crack propagation, resulting in superior fatigue performance. In contrast, the NDI-CPU shows sparser spherulite distribution, while TDI-CPU lacks a distinct spherulitic structure.

A series of crosslinkable fluorinated polyimide films containing different numbers of methyl groups were synthesized. By regulating the methyl and crosslinking structures, the films exhibited high transparency, excellent thermal stability, and dielectric properties. Molecular dynamics simulations and density functional theory were used to investigate the influence mechanism of methyl groups on the properties of the films.

Aniline in HNO₃ solution of pH<2.5 can be initiated directly to polymerize by γ-ray radiation at room temperature without the help of any additional chemical oxidants, thus providing a new route of clean and economical preparation of polyaniline with excellent electrochemical property.

In this work, trialdehydes, diamines, and trimethylsilyl cyanide could easily undergo multicomponent polymerization under mild conditions, producing hyperbranched poly(α-aminonitrile)s with high molecular weights in good yields. The hyperbranched poly(α-aminonitrile)s show good solubility, high thermal stability and morphological stability. Furthermore, these hb-poly(α-aminonitrile)s can undergo post-polymerization with high efficiency.

A series of temperature-sensitive polycaprolactone copolymers were designed and prepared. The binding ability of the micelles to proteins can be modulated by changing the temperature, which in turn enables long-term storage and high-temperature protection of proteins.

Surface wrinkling precedes nucleation and crystal growth in the semicrystalline deblock copolymer thin film, as demonstrated for the first time by in situ atomic force microscopy and synchrotron radiation X-ray scattering data.

In this experiment, the performance of PLLA/PDLA melt-blown nonwovens was improved by SC crystallites. The thermal stability and water contact angle were enhanced. The SC crystallites were more resistant to degradation by proteinase K compared to neat PLLA.

Summary: In this study, we synthesized and characterized samples of the polymerized ionic liquid and obtained experimental data on the viscosity, static and dynamic light scattering, and NMR diffusometry for aqueous and aqueous-salt solutions. We discuss the effects of the polymer concentration and salinity on the behavior of the solution.

The advantages of a fixed surface structure and large thickness of the oligomer ECCs make them ideal for validating the Gibbs-Thomson equation of PBS oligomer ECCs in comparison with the folded-chain lamellae data from previous literature.