The depolymerization of end-of-life polymers to valued chemicals (waste-to-chemicals) can be a suitable tool for the transformation from linear circular economy. Therefore, poly(ethylene 2,5-furandicarboxylate), discussed as sustainable substitute terephthalate), was studied. In more detail, in presence catalytic amounts zinc(II) acetate 2,5-furandicarboxylate) converted by methanolysis dimethy...

Humidity-sensitive polymer, namely poly(vinyl alcohol-co-vinyl acetal), was deposited on a flexible poly(ethylene terephthalate) (PET) substrate pre-covered with sputtered Au:Pd thin layer in order to develop an optical humidity sensor. The spin-coating method applied for the polymer film deposition. and sensing properties of device were studied after repeated bending deformation range 25−1000 ...

Fabrication of microfluidic devices by excimer laser ablation under different atmospheres may provide variations in polymer microchannel surface characteristics. The surface chemistry and electroosmotic (EO) mobility of polymer microchannels laser ablated under different atmospheres were studied by X-ray photoelectron spectroscopy and current monitoring mobility measurements, respectively. The ...

The toughening of an aromatic amine-cured diglycidyl ether of bisphenoI-A epoxy with particles of crystalline polymers was studied. The crystalline polymers were poly(butylene terephthalate), nylon 6, and poly(vinylidene fluoride). Nylon 6 and poly(vinylidene fluoride) were found to toughen the epoxy about as well as did an equivalent amount of CTBN rubber. Poly(butylene terephthalate) was foun...

Melt-blown fibers (dav ∼1 μm) were produced from blends of poly(butylene terephthalate) (PBT) and a partially fluorinated random multiblock copolyester (PFCE) leading to enhanced hydrophobicity and even superhydrophobicity (static water contact angle = 157 ± 3°) of the associated fiber mats. XPS measurements demonstrated quantitatively that the surface fluorine content increased systematically ...

Among commercial biodegradable polyesters, poly(glycolic acid) (PGA) has been rarely investigated for packaging applications, despite its unique advantages such as 100% compostability, high degree of crystallinity, thermal stability and gas barrier properties. The application PGA limited by mechanical brittleness, moisture sensitivity, melting temperature (~240°C), restricting processing applic...

Upcycling of Plastic Waste An optimal approach for the upcycling plastics is reported by Weipu Zhu and co-workers in article number 2210758, which permits direct manufacture high-value advanced materials avoids monomer regeneration. More specifically, a novel strategy provided directly poly(ethylene terephthalate) waste to antibacterial products. This procedure, employs catalytic amount an mono...