Ethylene glycol (EG) is one of the most attractive platform molecules derived from biomass and waste plastics. Thus, selective electrooxidation ethylene (EGOR) into value-added chemicals (especially glycolic acid (GA)) can promote its recycling upgrading. However, understanding EG-to-GA process on Pt-group metal (PGM) electrodes far limited now. It has been shown that Pt Pd could show considerable EGOR activity but not Rh Ir electrodes. Meanwhile, mainly produces glycolate, oxalate, formate...

Abstract Hybrid nanofibrous membranes of poly(lactic‐ co ‐glycolic acid) (PLGA) and chitosan with different amounts (32.3, 62.7, 86.5%) were fabricated via a specially designed electrospinning setup consisting two sets separate syringe pumps power supplies. After soaking in chloroform overnight to dissolve PLGA, the amount hybrid was determined. The structure, mechanical properties, water uptake, cytocompatibilities investigated by scanning electron microscopy, tensile testing, incubation...

A virtual machine (VM) has been serving as a crucial component in cloud computing with its rich set of convenient features. The high overhead VM well addressed by hardware support such Intel virtualization technology (VT), and improvement recent hypervisor implementation Xen, KVM, etc. However, the demand on image storage remains challenging problem. Existing systems have made efforts to reduce consumption means deduplication within area network (SAN) cluster. Nevertheless, an SAN cannot...

An ionic liquid (IL) (1‐butyl‐3‐methylimidazolium chloride, [BMIM]Cl) was used as a plasticizer of starch for the preparation PBS/starch blends and compared to those using glycerol, classical starch. IL showed stronger plasticization effect on than glycerol prevented recrystallization also found increase degree crystallinity lead better dispersion starches in PBS matrix, consequently enhanced mechanical properties blends. With IL/starch ratio 0.3, obtained PBS/TPS blend had elongation at...

Novel biobased multiblock polyesters poly(2,5-furandimethylene succinate)-b-poly(butylene succinate) (PFS-PBS) containing PFS and PBS blocks were synthesized in a full composition range via chain-extension reaction of dihydroxyl terminated (HO-PFS-OH) poly(butylene (HO-PBS-OH) prepolymers. High molecular weight obtained, the stability double bonds 2,5-bis(hydroxymethyl)furan was guaranteed this preparation procedure. The obtained copolyesters characterized with 1H NMR, gel permeation...

Biobased multiblock copolyesters possessing physical cross-links <italic>via</italic> crystallization and chemical the Diels–Alder reaction at same time.

To improve the properties of poly(butylene succinate) (PBS), a series poly[(butylene succinate)-co-poly(tetramethylene glycol)]s (PBSTMGs) with different poly(tetramethylene glycol) (PTMG) contents were successfully prepared by catalyzed melt polycondensation process. The effect introducing flexible PTMG segments on was investigated, and they compared to those PBS. differential scanning calorimetry results indicated that melting temperature, crystallization crystallinity PBSTMG copolymers...

Nano-SiO₂ was immobilized onto dialdehyde cellulose (DAC) to prepare SiO₂/DAC hybrid materials. Fourier transform infrared spectra (FTIR), thermogravimetric analysis and field emission scanning electron microscopy of indicated that nano-SiO₂ had been successfully hybridized with DAC. X-ray diffraction suggested the structure DAC influenced by nano-SiO₂. then used as cross-linker collagen solutions. Gel electrophoresis patterns FTIR reflected cross-linking occurred between collagen, but...

Gaussian mixture model (GMM) is a powerful probabilistic for representing the probability distribution of observations in population. However, fitness can be significantly degraded when data contain certain amount outliers. Although there are variants GMM (e.g., Laplace, t distribution) attempting to handle outliers, none them sufficiently mitigate effect outliers if far from centroids. Aiming remove further, this paper introduces Self-Paced Learning mechanism into distribution, which leads...

To explore the feasibility of developing bio-based elastic fibers, polylactide (PLA) and polytrimethylene terephthalate (PTT) were selected for fabrication side-by-side bicomponent fibers using bi-constituent melt-spinning technology. The structure development performance PLA/PTT was investigated thermal mechanical analysis, differential scanning calorimetry, wide-angle X-ray diffraction in order to evaluate crimp formability fibers. PLA PTT components could form regular boundary exhibit...

In this mini-review, the effect of random and block copolymerization on crystallization properties biodegradable poly(butylene succinate) is outlined. For copolymerization, minor co-monomers can be divided into two categories: most cases, co-monomer units will excluded from crystal lattice major monomer units, which leads to decreased melting point, lower crystallinity slower kinetics. Consequently, copolymers more flexible. Copolymerization with other aliphatic results in enhanced...

Formaldehyde-based adhesives, commonly used in traditional plywood, pose significant health and environmental risks. In contrast, green geopolymers, which offer benefits, are limited plywood applications due to their inadequate toughness. This study introduces a geopolymer adhesive that incorporates unique "brick mortar" (BM) structure inspired by natural shells, using fly ash as the primary raw material metakaolin an active additive. The is enhanced gel formed through pretreatment alkali...

Capitellar injury (CI) includes capitellar cartilage (CCI) and fracture (CF). A comprehensive classification of CI concurrent with radial head (RHF) that can guide surgical strategy is lacking in the literature. Therefore, this study aimed to introduce a RHF investigate its value.

The electrochemical conversion of glycerol into high-value chemicals through the selective oxidation reaction (GOR) holds importance in utilizing surplus platform chemical component glycerol. Nevertheless, it is still very limited producing three-carbon chain (C3) chemicals, especially glyceric acid/glycerate, direct its primary hydroxyl group. Herein, Pd microstructure electrodeposited on Ni foam support (Pd/NF) designed and fabricated to achieve a highly efficient GOR, exhibiting superior...

摘要 利用两步原子转移自由基聚合(ATRP)和聚合物后修饰反应, 制备半乳糖胺修饰的阳离子型刷形嵌段共聚物 P(PEGMEMA-co