A5100387725- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Nanocomposite Films for Food Packaging
- Conducting polymers and applications
- Polymer composites and self-healing
- Ferroelectric and Piezoelectric Materials
- Catalytic C–H Functionalization Methods
- Electrospun Nanofibers in Biomedical Applications
- Synthesis and properties of polymers
- Polymer Nanocomposites and Properties
- Natural Fiber Reinforced Composites
- Electromagnetic wave absorption materials
- Advanced Polymer Synthesis and Characterization
- Additive Manufacturing and 3D Printing Technologies
- Thermal Radiation and Cooling Technologies
- Flame retardant materials and properties
- Microplastics and Plastic Pollution
- Asymmetric Synthesis and Catalysis
- Surface Modification and Superhydrophobicity
- Graphene research and applications
- Catalytic Cross-Coupling Reactions
- Thermal properties of materials
- Sulfur-Based Synthesis Techniques
Qingdao University of Science and Technology
2021-2025
Sichuan University
2016-2025
Tsinghua University
2025
State Key Laboratory of New Ceramics and Fine Processing
2025
Ludong University
2024
Second Affiliated Hospital of Guangzhou Medical University
2024
West China Hospital of Sichuan University
2023-2024
Chengdu University of Technology
2023-2024
Southwest Petroleum University
2020-2024
State Key Laboratory of Oral Diseases
2016-2024
With the modern development of power electrification, polymer nanocomposite dielectrics (or nanodielectrics) have attracted significant research attention. The idea is to combine high dielectric constant inorganic nanofillers and breakdown strength/low loss a matrix for higher energy density film capacitors. Although impressively has been achieved at laboratory scale, there still large gap from eventual goal nanodielectric In this review, we focus on essential material issues two types...
The structural manipulation of the electroactive β phase poly(vinylidene fluoride) (PVDF) is particularly important in sensor and actuator applications. Herein, an efficient way to enhance dielectric ferroelectric properties PVDF films by annealing preoriented through thermal treatment combined with pressure field proposed. During processing, appropriate attributed dipole rotation results complete transformation nonpolar α (TGTG′) into polar (TTTT). Moreover, temperature fields...
Polylactide (PLA) films with an excellent balance of toughness and stiffness were realized by extensional stress efficiently. For the relatively low stress, gauche–gauche conformers that originated from oriented amorphous chains lead to super-toughening behavior. Among higher strain-induced orientation crystallization act as driving force reinforcement. This mechanism is evidenced pronounced enhancement in elongation at break 16.9 up 294.9% accompanying variation yield strength 45.3 135.5...
Auto-tandem catalysis (ATC), in which a single catalyst promotes two or more mechanistically different reactions cascade pattern, provides powerful strategy to prepare complex products from simple starting materials. Reported here is an unprecedented auto-tandem cooperative (ATCC) for Morita-Baylis-Hillman carbonates isatins and allylic using Pd(PPh3 )4 precursor. Dissociated phosphine generates phosphorus ylides the Pd leads π-allylpalladium complexes, they undergo γ-regioselective...
It is a formidable challenge to combine the performance advantages of linear and nonlinear polymer dielectrics for developing all-organic film capacitors with high energy density low loss. In this work, massively parallel aligned poly(vinylidene fluoride) (PVDF) nanofibrils were in situ fabricated first time polyethylene (PE) matrix via multistage stretching technology involving hot solid-state at an elevated temperature. The largely enhanced interfacial area PVDF could effectively induce...
A nickel-catalyzed cross-electrophile coupling reaction between (hetero)aryl bromides and 2,2-difluorovinyl tosylate is presented. This protocol provides facile incorporation of the gem-difluorovinyl moiety in organic molecules. The method features mild conditions, good functional group tolerance, excellent yields. Furthermore, mechanistic experiments DFT studies indicate a Ni(0)/Ni(II) catalytic cycle, thus differing from currently accepted cycle for C(sp2)–C(sp2) reactions.
Polymeric films with high electromagnetic interference (EMI) shielding effectiveness (SE) and polyfunctionality are highly desirable for wearable electronic devices. Herein, a sandwich-structured EMI film Joule heating performance composed of poly(vinylidene fluoride) (PVDF) layer conductive filler (silver nanowire (AgNW) MXene) was constructed by electrostatic spinning, vacuum-assisted filtration (VAF), hot compression. An independent AgNW endowed the predominant at low content. A SE 45.4...
Space cooling and heating consume a large proportion of global energy, so passive thermal management materials (i.e., without energy input), especially dual-mode including bifunctions, are becoming more attractive in many areas. Herein, function-switchable Janus membrane between consisting multilayer structure polyvinylidene fluoride nanofiber/zinc oxide nanosheet/carbon nanotube/Ag nanowire/polydimethylsiloxane was fabricated for comprehensive applications. In the mode, high radiation...
Cellulose-based dielectrics with attractive dielectric performance are promising candidates to develop eco-friendly electrostatic energy storage devices. Herein, all-cellulose composite films superior constant were fabricated by manipulating the dissolution temperature of native cellulose, where we revealed relationship among hierarchical microstructure crystalline structure, hydrogen bonding network, relaxation behavior at a molecular level, and cellulose film. The coexistence I II led...
The crystallization behavior and crystalline structure of poly(vinylidene fluororide) (PVDF) in the presence graphene oxide (GO) platelets were investigated using time-resolved Fourier transformation infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WAXD), as well differential scanning calorimetry (DSC). It is shown that GO induce formation γ phase when crystallizing from solution, but only α forms melt crystallization. kinetics promoted due to heterogeneous nucleation ability GO,...
Konjac glucomannan (KG, neutral), carboxymethylcellulose (CMC, negatively charged), and chitosan (positively charged) were added to cornstarch dispersions study the effect of polysaccharide-starch interactions on starch gelatinization properties. Pasting retrogradation properties measured with a rheometer DSC. Swelling granules determined by solubility index, swelling power, particle size distribution. Depending nature different polysaccharides, viscosities affected differently. The...
Manipulating polymorphism in extended chain-crystals (ECCs), which are commonly achieved by crystallization under high pressures, is important for enriching our understanding of basic polymer as well achieving performance materials. In this study, the influence pressure and ion–dipole interaction on was investigated comparing neat poly(vinylidene fluoride) (PVDF) PVDF with 1 wt % cetyltrimethylammonium bromide (CTAB) nonisothermally crystallized from melt at 210 °C. Under low pressures (≤10...