Open-shell oligomers and polymers have exhibited interesting optoelectronic and magnetic properties, sparking new research interests recently. This review aims to provide an introduction to the theory and characterization methods of open-shell oligomers and polymers, along with an overview of their design strategy and applications.

Poly(N-(3-(1H-imidazol-1-yl)propyl)acrylamide) was synthesized. The methylene units in the side chain cause the polymer thermolability at 29-48°C and in the neutral pH range. The new polymer is able to form complexes with oligo-DNA more actively than poly(1-vinylimidazole) and can be applied to create finely controlled surfaces for cell culture.

A novel post molecular imprinting method to prepare molecularly imprinted electrospun nanofiber with stable-binding and densely packed accessible active sites by crosslinking amidoxime side groups chains the surface of amidoxime-based functional polymer/polyacrylonitrile blending electrospun fibers. The resultant MIF-PMAOX/PAN fibers demonstrate the versatility and superiority as self-detoxifying catalyst for organophosphates.

This study systematically compares and analyzes four representative natural rubber raw materials, which reveals that protein and gel content may be the key factors affecting NR performance. The protein and gel content in rubber can dissipate energy and promote the strain-induced crystallization behavior of rubber, contributing to excellent comprehensive performance.

Internal structure, size, and mobility of nanoparticles formed by polyelectrolyte complexation between large macromolecules of hyperbranched anionic polysaccharide fucoidan and several chitosans (smaller linear cationic polysaccharides) were studied in dilute solutions by light scattering methods (SLS, DLS, and EDS) and by SEM and AFM in a dry state.

Low cost, green sustainable and biodegradable biomass-based fluorine-free water and oil repellent. The prepared product did not exhibit any leakage after being soaked in hot water and hot oil at 95±5℃ for 30 minutes.

Melting of different components in ethylene homopolymer produced at 25 ºC with the bis(imino)pyridyl complex of CoCl₂ activated with a combination of Al(C2H5)2Cl and Mg(C₄H₉)₂.

Some novel cobalt dichloride complexes with amino-phosphine bidentate ligands were synthesized, characterized, and used in combination with methylaluminoxane (MAO) for the polymerization of 1,3-butadiene. Polymers with different structures (i.e., predominantly 1,2 or cis-1,4) were obtained depending on the MAO/Co molar ratio.

The self-limiting heating cables with high intensity of PTC and mechanical properties are prepared through industrial production lines. By using the structuring processing methods of heat treatment and electrical treatment, the carbon black in PE matrix is uniformly dispersed macroscopically but concentrated microscopically, which maximizes the efficiency of carbon black.

A novel Cu@porous polyimide anode current collector (Cu@PPI for short) was fabricated by laser hole making/vacuum deposition. Benefiting from the porous structure, electrons can be efficiently transported on Cu@PPI. Compared with commercial copper foil, Cu@PPI has lighter weight, higher safety and excellent electrochemical performance, which indicates a great increase in battery energy density.

In PRISM-PY calculations of homopolymer melts, the local extrema of the interchain indirect pair correlation function (PCF) ${\hat \gamma _{\rm{e}}} $ decay much faster with wavenumber q_e than those of the interchain direct PCF ${\hat c_{\rm{e}}} $ for both the tangent hard-sphere chain (left) and the dissipative particle dynamic chain (right) models at various chain lengths N.

Innovative introduction of hexyl long carbon chains and imide ring structures into Polyphenylene Sulfide addresses its flexibility and impact resistance shortcomings. Molecular dynamics simulations reveal that elongating carbon chains lowers the glass transition temperature (Tg) and elastic modulus while increasing tensile strength.