The ring-opening alternating copolymerization (ROAC) of 3, 4-dihydrocoumarin (DHC) and epoxides was developed using an imidazolium salt of 1-ethyl-3-methylimidazolium chloride (EMIMCl) as a catalyst. The metal-free catalytic process was investigated by DFT calculations, and the synergistic catalytic mechanism of EMIMCl for ROAC of DHC and epoxides was demonstrated.

The effect of the aggregation states of the pH/GSH co-triggered degradable polyprodrug on its tumor intracellular microenvironment (TME)-triggered drug release was investigated, by fabricating nanomedicines via fast precipitation and slow self-assembly. It is expected to be a secondary strategy for improved TME-responsive drug delivery in tumor chemotherapy, in addition to the molecular structures of the polyprodrugs as drug self-delivery systems (DSDSs).

A color-tunable fluorescent polymer was successfully synthesized through a biosynthesis approach using triphenylamine-modified glucosamine (TPA-GlcN) and glucose as co-monomers.

We summarized recent advances and future trends in the field of intracellular polymerization, specifically focusing on covalent and supramolecular polymerization. This discussion comprehensively covers the diverse chemical designs, reaction mechanisms, responsive features, and functional applications.

In the contribution, Histidine N-thiocarboxyanhydride (His-NTA) is synthesized bearing unprotected imidazole group directly in basic aqueous solution. Controlled polymerization of His-NTA is performed using organic acid as designed ionic temporary protection for unprotected imidazole group, with discovery and explanation of equilibria-controlled polymerization mechanism.

The study demonstrated the tunability of cyclic and alkyl chain segments in novel biobased polyesters derived from renewable 2-methoxyhydroquinone, and how their thermomechanical characteristics, biodegradability, and ecotoxicity, can be enhanced to serve as a potential PET mimics.

This study employs phytic acid (PA) and biochar (BC) to fabricate PVA/PA/BC composite film. Compared with traditional PVA material, this composite film exhibits superior mechanical performance, flame retardancy and water resistance. The mechanical and flame-retardant strengthening mechanisms are comprehensively investigated and elucidated.

In this work, a simple, economical and environmentally friendly preparation method of flame retardant polyurethane foam is proposed, which can realize the sustainable development of polyurethane foam and broaden the application field of polyurethane foam by using biomass resources.

In this study, we present a novel approach for the direct construction of α-functionalized 3,4-polyisoprene through polymerization of polar monomers and isoprene monomer. The α-functionalized 3,4-polyisoprene was successfully synthesized via in-situ sequential polymerization using the iron-based catalytic system (Fe(acac)₃/IITP/AlⁱBu₃), exhibiting high activity and resistance to polar monomers without requiring protection of polar groups, particularly hydroxyl groups. The structure of α-functionalized 3,4-polyisoprene was confirmed by ¹H-NMR and ²D DOSY spectra analysis.

A brush-type polystyrene (PS)-SiO₂- poly(2-hydroxyethyl methacrylate) (PHEMA) Janus nanoparticle prepared in one step via interfacial ATRP exhibits efficient compatibilization effect on PS/PMMA blend with morphology well refined and mechanical properties significantly enhanced, thanks to its combination of high interfacial adsorption of polymer chains and good anchoring capacity of particles.

A multifunctional nanocomposite is prepared to efficiently inhibit choroidal melanoma (CM) using synergistic chemotherapy-assisted-photothermal therapy (CTH-PTT). This nanocomposite comprises alpha-tocopheryl succinate (α-TOS) and carboxylic chitosan-modified graphene (CG) to tackle the pivotal challenge of ocular malignancies such as CM.

This study reports a new method to promote form II to form I phase transition in polybutene-1. Alternative annealing between ice water and hot water several times can increase the content of form I significantly. Compared to classical two-step annealing, its efficiency is higher, compensating for the shortcoming of the classical method in low-molecular-weight polybutene-1.

A full - phase transition has been achieved for highly oriented PVDF ultrathin films of 20.6% β phase, related to their parallel-aligned lamellar structure. However, a higher -phase content can suppress - phase transition due to the stress concentration effect of phase, leading to bent and tilted lamellae.

Shape-reversible hydrogels are achieved by copolymerizing PNIPAm with hydrophilic PEG, which enables water expelled from the PNIPAm-rich phase during heating to be temporarily absorbed by the PEG-rich phase; this recoverability depends on the swellability of PEG, determined by its molecular weight and concentration.

We obtained interface frustration-induced nanoparticles with rich novel structures for diblock copolymers confined in a Janus spherical nanocavity, such as Janus concentric perforated lamella with holes distributed only near the equatorial plane or in parallel layers, as well as flower-like or branched structures. We explained the structure formation mechanisms.

High-strength, recyclable fluorine-containing adhesives were developed, integrating dynamic B-O bonds and multilevel intermolecular interactions. These adhesives exhibit solvent-assisted self-healing and ethanol-triggered recyclability, enabling multiple reuse cycles without substrate damage while maintaining robust adhesion across diverse materials.

POSS-doped polyimide nanocomposites exhibit reduced dielectric constants (2.6), enhanced thermal conductivity, and improved mechanical properties. Chemical bonding outperforms physical blending, offering better performance and sustainability by reducing CO emissions under high-temperature and electric field conditions.

The crystallization time of crystallizable segments with different lengths in two POE samples was established using FSC technique. The long crystallizable chain segments would first nucleate and crystallize. The equilibrium melting temperature cannot be determined in POE samples by plotting T_c to T_m.

English Summary: This study employs coupled perturbed Density Functional Theory (DFT) to efficiently predict polymer refractive indices (RI) and Abbe numbers. By calculating frequency-dependent polarizability and molecular volume, and applying linear corrections based on polymer classes, the method achieves high correlation with experimental data.