A5100758877- Pickering emulsions and particle stabilization
- Polymer composites and self-healing
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- biodegradable polymer synthesis and properties
- Polymer Nanocomposites and Properties
- Synthesis and properties of polymers
- Polymer crystallization and properties
- Advanced Polymer Synthesis and Characterization
- Advanced Cellulose Research Studies
- Force Microscopy Techniques and Applications
- Perovskite Materials and Applications
- Advanced ceramic materials synthesis
- Surfactants and Colloidal Systems
- Silicone and Siloxane Chemistry
- Epoxy Resin Curing Processes
- Fuel Cells and Related Materials
- Hydraulic Fracturing and Reservoir Analysis
- Aluminum Alloys Composites Properties
- Drilling and Well Engineering
- Electrohydrodynamics and Fluid Dynamics
- Advanced battery technologies research
- Membrane-based Ion Separation Techniques
- Luminescence and Fluorescent Materials
- Carbon Nanotubes in Composites
Beijing University of Chemical Technology
2016-2025
Harbin Institute of Technology
2013-2025
Chinese Academy of Sciences
1998-2024
University of Science and Technology of China
2024
University of British Columbia
2024
Northeast Forestry University
2024
Jiangsu University of Science and Technology
2023
Shenzhen University
2021-2022
Jiangnan University
2022
Sinopec (China)
2007-2022
Liquid reconfigurable ferromagnetic materials Ferromagnetic show a permanent magnetic dipole, whereas superparamagnetic ones only properties under an applied field. Some materials, like ferrofluids, liquid-like behavior but do not retain their magnetization in the absence of Liu et al. remnant otherwise magnetite nanoparticles at oil-water interface emulsion droplets (see Perspective by Dreyfus). The could be controlled coupling and uncoupling individual nanoparticles, making it possible to...
The structure–property relationships of PTB7‐phenyl‐C 61 ‐butyric acid methyl ester (PCBM)‐based organic photovoltaics are investigated. morphology is investigated in an active layer setting where a multi‐length‐scale observed using solvent additive‐assisted film processing. This structure consists phase separated with characteristic length scale ≈30 nm, which critical for producing large currents devices; second ≈130 arises from face‐on PTB7 crystalline aggregates. latter morphological...
Vitrimers are network polymers that undergo associative bond exchange reactions in the condensed phase above a threshold temperature, dictated by exchangeable bonds comprising vitrimer. For vitrimers, chemistries reliant on poorly nucleophilic partners (e.g., hydroxy-functionalized alkanes) or electrophilic bonds, catalysts required to lower which is undesirable catalyst leaching deactivation diminishes its influence over time and may compromise reuse. Here we show how access catalyst-free...
Over the past 30 years, atomic force microscopy (AFM) has played an important role in elucidating structure and properties of polymer surfaces. AFM-based techniques have enabled quantitative determination physicochemical surfaces with high spatial resolution under a wide variety conditions. Coupled improvements temporal resolution, multiparametric multifunctional characterization revealed delicate interplay between structure, dynamics, at complex systems. Here we summarize some significant...
Advances in material design and applications are highly dependent on the development of particle surface engineering strategies. However, few universal methods can functionalize particles different compositions, sizes, shapes, structures. The amyloid-like lysozyme assembly-mediated functionalization inorganic, polymeric or metal micro/nanoparticles a unique phase-transition buffer containing described. rapid formation robust nanoscale phase-transitioned (PTL) coating surfaces presents strong...
Abstract Taking advantage of the formation and assembly cellulose nanocrystal surfactants (CNCSs) at water–oil interface, where polar nanocrystals (CNCs) end‐functionalized polymer chains interact, preparation stability emulsions prepared with CNCSs were investigated. The packing density interface can be adjusted by tuning parameters such as pH, ionic strength, concentration/molecular weight ligands. Stable non‐spherical are obtained during homogenization, a result interfacial jamming CNCSs,...
Abstract Using the interfacial jamming of cellulose nanocrystal (CNC) surfactants, a new concept, termed all‐liquid molding, is introduced to produce objects that retain shape and details mold with high fidelity, yet remain all liquid are responsive external stimuli. This simple process, where viscosity CNC dispersion can range from water crosslinked gel, opens tremendous opportunities for encapsulation, delivery systems, unique microfluidic devices. The process described generally...
The growth of aerobic microbes at air-water interfaces typically leads to biofilm formation. Herein, a fermentative alternative that relies on oil-water support bacterial activity and aerotaxis is introduced. process uses under-liquid biofabrication by structuring nanocellulose (BNC) achieve tailorable architectures. Cellulose productivity in static conditions first evaluated using sets oil homologues, classified order polarity. oils are shown for their ability sustain BNC production...
Abstract Structured liquids, generated by the interfacial formation, assembly, and jamming of nanoparticle (NP)‐surfactants at liquid/liquid interfaces, maintain all desirable characteristics each liquid, while providing a spatially structured framework. Herein, we show that rod‐like cellulose nanocrystal (CNC)‐based NP‐surfactants, termed CNC‐surfactants, are formed rapidly interface, assemble into monolayer, and, when jammed, offer robust assembly with exceptional mechanical properties....
Dynamic polymer networks (DPNs) from epoxidized soybean oil (ESO) that incorporate dual dynamic exchange reactions (dual-DERs) and hydroxyl-functionalized silica (HO-SiO2) reinforcement are shown to exhibit rapid stress relaxation excellent mechanical properties. A disulfide-containing carboxylic acid was used synthesize the ESO DPNs by simultaneous disulfide metathesis transesterification found markedly increase rate of networks. HO-SiO2 enhance properties while further increasing...
Polyurethane (PU) with microphase separation has garnered significant attention due to its highly designable molecular structure and a wide range of adjustable properties. However, there is currently lack systematic approaches for quantifying PU's separation. To address this research gap, we utilized an atomic force microscopy (AFM) nanomechanical mapping technique along Gaussian fitting recolor quantitatively analyze the evolution By varying ratios chain extender cross-linking agent,...
The interfacial broadening between two different epoxy networks having moduli was nanomechanically mapped. of the produced an zone a gradient in concentration and, hence, properties original networks. This leads to generation new network with segmental composition corresponding mixture segments. intermixing two, by nature exchange reactions, on level. By mapping time dependence variation modulus at temperatures, kinetics reaction measured varying temperature, activation energy determined.
Abstract Structured liquids, generated by the interfacial formation, assembly, and jamming of nanoparticle (NP)‐surfactants at liquid/liquid interfaces, maintain all desirable characteristics each liquid, while providing a spatially structured framework. Herein, we show that rod‐like cellulose nanocrystal (CNC)‐based NP‐surfactants, termed CNC‐surfactants, are formed rapidly interface, assemble into monolayer, and, when jammed, offer robust assembly with exceptional mechanical properties....
The hydration of different active MgO under an unforced and ultrasonic condition was conducted in this paper to investigate the chemical kinetics model apparent reaction discuss mechanism combined with product morphology. dynamics fitting result shows that both first-order multi-rate describe process ultrasound well, while only right for condition. It indicated rate order XRD SEM show a dissolution crystallization. Part magnesium ions produced by did not diffuse into solution time, adhered...
A green approach is explored in crosslinking diene rubbers by using an inverse vulcanised co-polymer of sulfur and styrene.
Although considerable progress has been made in developing vitrimers, on-going challenges for vitrimers high-performance applications include the improvement mechanical properties and identification of more efficient exchange reactions. By incorporation glycidyl polyhedral oligomeric silsesquioxane (POSS) as a nanoscale filler epoxy, we produced epoxy-POSS nanocomposite that show high strength, toughness, thermal stability, relaxation. With 10 wt% POSS, ultimate tensile strength strain at...
Although considerable progress has been made in developing different types of vitrimers, ongoing challenges remain tuning their mechanical and rheological properties, self-healing, adhesion. Here, we demonstrate a one-pot method to produce novel double-network epoxy vitrimer using an aliphatic amine cross-linker with siloxane covalent bond aromatic disulfide bond. When controlled two-stage curing process is employed, the markedly reactivities allow for sequential cross-linked network...
The optoelectronic properties of thin films poly(3-hexylthiophene) (P3HT) are markedly improved by treating the polymer in solution with either electrophiles or nucleophiles. work function is strongly decreased treatment lithium aluminum hydride, consistent hydride ion addition and observed ∼400-fold decrease p-type defect density. exciton diffusion length (Lex) doubled to 14 nm, while bulk carrier mobility (μ) more than an order magnitude 2.4 × 10−3 cm2/(V s). increased after...