The cover image by Dian Xu shows poly (lactic acid) (PLA) films immersed in different aqueous-alcoholic solutions, including methanol, ethanol, 1-propanol, 2-propanol, and 1-butanol aqueous solution. This work investigated the effect of these alcoholic solutions on PLA's thermal properties by conducting dry and in situ dynamic mechanical analysis. The glass transition temperature (T_g) of PLA film immersed in pure alcohol was lower than the original dry PLA film. The reduction of PLA's T_g is related to the concentration of the aqueous-alcoholic solution in which it was immersed. These findings will assist in developing PLA films in contact with these solutions. DOI: 10.1002/app.53489

R-PET composites were prepared by melting extrusion. The results showed that Kaol could not only improved the flame retardant and thermal decomposition temperature of MCA/ADP/R-PET composites, but also improved their tensile and flexural strength, the flame retardant of 4-Kaol/5-MCA/15-ADP/R-PET composite reached UL94 1.0 mm V0 with LOI was 36.5%, and the tensile and flexural strength were increased by 26.1% and 16.7% compared with 5-MCA/15-ADP/R-PET, respectively.

The IFSS of CF and ILSS of CFREs before and after sizing. Typical fracture morphologies of carbon fiber surfaces after interfacial debonding: (a₀) UCF, (a) SCF-1, (b) SCF-2, (c) SCF-3, and (d) SCF-4.

SEM micrographs of pristine and modified glass fibers, and the micrographs of PVA/GFs composites in the parallel direction before and after stretching.

Water diffusion in neat GE, CNT-GE and FCNT-GE composites

The polylactic acid (PLA)/calcium carbonate whisker (CCW) fibers prepared by solution spinning method was arranged in different stacking sequences and then was hot pressed to obtain the PLA/CCW composite plate. The orientation aligned CCW showed good reinforcement and toughening effect on the PLA matrix.

The technological process for preparing EMC samples.

Synthesis and performance analysis of bifunctional polymers

The nanofibrillar morphology of PMMA/PAcr composite fiber is controlled by the crosslinking network structure of dispersed phase (crosslinked PAcr microspheres). The PAcr microspheres with inhomogeneous crosslinking network deform into nanofibrils with smaller diameter due to the increased length of network strand, thus increase the toughness of PMMA/PAcr composite fibers significantly.

Core-shell microsphere with a biodegradable silica layer was fabricated. A well-controlled dual-responsive drug release behavior was achieved. Low premature leakage (4%, pH 7.4) and good biocompatibility were achieved.

Lys-g-CS, Glu-g-CS, and Gln-g-CS were synthesized by the one-pot method. Lys-g-CS/GP hydrogel, Glu-g-CS/GP hydrogel, and Gln-g-CS/GP hydrogel, temperature-sensitive hydrogels, were successfully prepared by physical cross-linking method. The hydrogels had a 3D mesh structure conducing to load drug. AA-g-CS/GP hydrogels had a better sustained release effect on the model drug.