A5100631728- Polymer crystallization and properties
- Rheology and Fluid Dynamics Studies
- Polymer Nanocomposites and Properties
- Material Dynamics and Properties
- Polymer composites and self-healing
- Ionic liquids properties and applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Supramolecular Self-Assembly in Materials
- Photonic and Optical Devices
- Hydrogels: synthesis, properties, applications
- High-Velocity Impact and Material Behavior
- Advanced Polymer Synthesis and Characterization
- Phosphorus and nutrient management
- Synthesis and properties of polymers
- Supercapacitor Materials and Fabrication
- Plant Molecular Biology Research
- Soybean genetics and cultivation
- Analytical Chemistry and Chromatography
- Orthopaedic implants and arthroplasty
- Liquid Crystal Research Advancements
- biodegradable polymer synthesis and properties
- Surfactants and Colloidal Systems
- Plant Reproductive Biology
- Graphene research and applications
Chinese Academy of Agricultural Sciences
2023-2025
Crystal Research (United States)
2025
State Key Laboratory of Crystal Materials
2025
Shandong University
2025
Beijing National Laboratory for Molecular Sciences
2015-2024
Chinese Academy of Sciences
2015-2024
Institute of Chemistry
2015-2024
University of Chinese Academy of Sciences
2012-2024
Chongqing University
2024
Beijing Forestry University
2021-2024
Dynamic polymer hydrogels with an environmental adaptive self-healing ability and dual responsive sol-gel transitions were prepared by combining acylhydrazone disulfide bonds together in the same system. The hydrogel can automatically repair damage to it under both acidic (pH 3 6) basic 9) conditions through exchange or reactions. However, is not self-healable at pH 7 because are kinetically locked, whereas gains accelerating help of catalytic aniline. All processes demonstrated be effective...
We critically evaluate and compare all major published methods for the experimental determination of plateau modulus monodisperse as well polydisperse polymers with linear architecture. For long-chain model systems (Mw/Mn<1.1 number entanglements>20–30), various show excellent agreement, within an error margin 5–10% close to uncertainty. low numbers entanglements, terminal peak integration method requires a careful extrapolation at high frequency side. This is best achieved by simple...
Abstract Elastic graphene aerogels are lightweight and offer excellent electrical performance, expanding their significance in many applications. Recently, elastic have been fabricated via various methods. However, for most reported aerogels, the fabrication processes complicated applications usually limited by brittle mechanical properties. Thus, it still remains a challenge to explore facile of with low density high compressibility. Herein, arbitrary‐shaped, superelastic, durable using...
A new poly(benzyl ether) dendritic organogelator Azo-G3 containing azobenzene in its inner layer was designed and synthesized, fully characterized. The dendron found to be a highly efficient versatile toward various apolar polar organic solvents with the critical gelation concentrations (CGCs) approaching 0.05 wt %, indicating that belongs category of supergelators. Further studies revealed intermolecular multiple π–π stacking interactions might responsible for guiding self-assembly...
Injectable hydrogels with pH and temperature triggered drug release capability were synthesized based on biocompatible glycol chitosan benzaldehyde-capped poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO). Aqueous solutions of the above polymers formed hydrogel under physiological conditions, allowing a desirable injectability, through formation covalent benzoic-imine bond changes. Rheological characterization demonstrated that gelation rate moduli...
In our previous work [Macromolecules2010, 43, 1191–1194], we synthesized dynamic covalent cross-linked polymer gels through condensation of acylhydrazines at the chain ends poly(ethylene oxide) (A2) and aldehyde groups in tris[(4-formylphenoxy)methy]ethane (B3) reported reversible sol–gel transition self-healing properties gels. For those gels, this paper examines gelation kinetics rheological behavior pre- postgelation stages discusses molecular mechanism underlying mechanical properties....
ABSTRACT Catalyst‐free recyclable polybutadiene (PB) elastomer cross‐linked by dynamic imine bonds is prepared the reaction between amine functionalized PB and aldehyde cross‐linkers. The nature of bond investigated rheometry creep‐recovery experiments. cross‐linking degrees are regulated incorporating different amount aldehyde, their influence on elastomers in detail. temperature‐induced exchange reactions enable recycling mechanical properties almost unchanged after several cycles. It...
Abstract Cyclic olefin copolymers comprise a new class of polymeric materials showing properties high glass-transition temperature, optical clarity, low shrinkage, moisture absorption, and birefringence. There are several types cyclic based on different monomers polymerization methods. In this work, we have analyzed the chemical structure currently commercialized by 13 C NMR, investigated their temperatures surface characteristics. It was observed that T g , depended bulkiness main chain,...
Disordered tumor cell metabolism is involved in the process of tumorigenesis. Proline critical importance for cells, and pyrroline‑5‑carboxylate reductase 1 (PYCR1), a key proline biosynthesis enzyme, has been reported to be overexpressed prostate cancer promote growth breast cancer. The present study investigated relationship between PYCR1 non‑small lung (NSCLC). results revealed that was NSCLC tissues compared with adjacent normal tissues. High expression associated poor prognosis patients...
A macroscopic organohydrogel hybrid was prepared by fast adhesion between the hydrogel and organogel which often repel each other. The two original gels were condensation of poly(ethylene glycol) (PEG) gelators in anisole water, respectively. Reversible acylhydrazone bonds formed act as linking points polymer networks gels. When brought into contact, a robust hybridized gel obtained 10 min. An emulsion layer at interface dynamic chemistry bonding are key factors rapid inherently different We...
A thermoplastic high strain multishape memory polymer can be fabricated using a hemiphasmid side-chain polynorbornene (P1) with hexagonal columnar liquid crystalline (ΦH ) phase. Without any chemical crosslinks, P1 memorize multiple temporary shapes and exhibit excellent shape fixity recovery. As the building blocks of ΦH , multichain columns in act as robust physical crosslinks.
The glass transition temperature (Tg) is an important material parameter in determining polymer properties. main molecular structure factors affecting Tg are chain stiffness and cohesive energy, causing polymers to exhibit the complex micro-structure dependence of Tg. composition Tgs binary random copolymers mainly shows as three cases: linear relation, negative deviation (or concave curve), or positive (convex curve). study Tg's can guide design copolymer materials with desirable On other...
Stimulus-responsive polymer-based actuators are extensively studied, with the challenging goal of achieving comprehensive performance metrics that include large output stress and strain, fast response, versatile actuation modes. The design fabrication nanocomposites offer a promising route to integrate advantages both polymers nanoscale fillers, thus ensuring superior performance. Here, it is started from three-dimensional (3D) porous sponge fabricate mutually interpenetrated nanocomposite,...
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTNew Linearized Relation for the Universal Viscosity−Temperature Behavior of Polymer MeltsChen-Yang Liu, Jiasong He, Roland Keunings, and Christian BaillyView Author Information Unité de Chimie et Physique des Hauts Polymères, Université catholique Louvain, B-1348 Louvain-La-Neuve, Belgium; Key Laboratory Engineering Plastics, Joint Science Materials, Institute Chemistry, Chinese Academy Sciences, Beijing 100080, China; CESAME, Belgium Cite this:...
A novel class of dumbbell-shaped dendritic molecules with a p-terphenylene core was synthesized, and their self-assembling properties were investigated. The incorporation bulky wedges to the central stiff aromatic scaffolds could finely tune solubility in many organic solvents. Unlike self-assembly behavior p-terphenylen-1,4"-ylenebis(dodecanamide), cored different generation form gels several kinds solvents through cooperative effect pi-pi stacking, hydrogen-bonding, van der Waals forces....