The cover image created by Maurelio Cabo Jr., and his colleagues show the aromatization of DGEBA epoxy resin aromatic rings to epoxidized corn oil aliphatic chains result in interaction and functionalization of phospholipids and hydroxyl radicals developing high brittleness yet lower flammability with an excellent reduction of carbon monoxide and carbon dioxide emission from commercialized polymer resins. DOI: 10.1002/app.52874

The family of polymers under the name ofpolyphthalamide (PPA) is utilized in many specialized areas as a result of itshigh thermomechanical properties, chemical resistance, etc. This articleprovides a thorough review of the research literature available by representingthe many avenues of research in both the basic understanding of properties aswell as in very specialized engineering applications.

We create molecularly imprinted nanoparticles for the recognition of ellagic acid (EA). We develop a straightforward, efficient, and environmentally friendly precipitation polymerization method to synthesize nanoMIPs. We employ nanoMIPs-based dispersive solid-phase extraction to extract EA from pomegranate peels.

Epoxies with biomass-based maleimide-cardanol modifiers show lower curing activity and single glass transition temperature due to long flexible chain of cardanol. Besides, increased crosslinking density and high thermostability are attributed to the rigid five-membered ring structure of maleimide. In addition, adhesion properties, equilibrium water sorption and diffusion coefficient are related to the polarity of HPM.

Self-healing mechanism of cinnamomum and castor oil under light.

In the present study, a soft actuator-grade thermoplastic polyurethane (TPU) was synthesized and then processed into a filament for FDM 3D printers during a melt-extrusion process using synthesized pellets. Chemical, thermal, and mechanical properties of the manufactured TPU filaments were characterized. Auxetic re-entrant TPU samples were then printed with the manufactured filament.

An all-organic high heat-resistant epoxy resin packing material for insulated gate bipolar transistor (IGBT) encapsulation was prepared by modifying epoxy with cyanate (CE) and EP-POSS. Compared with epoxy, which not only has low dielectric constant, but also can endure 250°C of operating temperature. A mechanism that forming of oxazolidone and triazine rings restricts movement of carriers and degrading of cross-linked networks was proposed for the improvement of dielectric and thermal performances.

This research proposed a flexible piezoresistive tactile sensor (FPTS) device with imprinted microsphere array to realize the accurate and stable acquisition of human motion data. The electromechanical response curves of piezoresistive tactile sensor consisting of PDMS/MWCNT-COOH/PI composite membrane with double-sided microsphere shows that the detection limits can reach 0.0289 kPa, and the sensitivity is 1.139 kPa⁻¹. The sensor has high stability, especially when the wearing radius of curvature is more than 30 mm.

Two-dimensional covalent organic frameworks/cellulose composite materials were prepared and applied to adsorb dyes with good recyclability.

Polypropylene plays the role of a bubble nucleating agent and reduces the cell size and shrinkage ratio of the foams

Engineered Mechanical Perfomance of IPN, Composite and IPN Composite

The structural asphalt and free asphalt can affect the macroscopic mechanical properties of asphalt mastic. Hence, TPU modified asphalt mastic can be regard as a two-phase composite material composed of TPU modified asphalt and filler. Its rheological characteristics and internal mechanism are affected by TPU modified asphalt and different kind of fillers.