A5036305730- Synthetic Organic Chemistry Methods
- Advanced Memory and Neural Computing
- Organometallic Complex Synthesis and Catalysis
- Chemical Synthesis and Analysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Neuroscience and Neural Engineering
- Conducting polymers and applications
- Carbon dioxide utilization in catalysis
- biodegradable polymer synthesis and properties
- Advanced Sensor and Energy Harvesting Materials
- Polymer Surface Interaction Studies
- Supramolecular Self-Assembly in Materials
- Photoreceptor and optogenetics research
- Dendrimers and Hyperbranched Polymers
- Surface Modification and Superhydrophobicity
- Electrospun Nanofibers in Biomedical Applications
- Insect and Arachnid Ecology and Behavior
- Hydrogels: synthesis, properties, applications
- Physiological and biochemical adaptations
- Silicon Nanostructures and Photoluminescence
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Asymmetric Hydrogenation and Catalysis
- Lubricants and Their Additives
Jiangsu University
2012-2024
Sichuan University
2022
North University of China
2020-2021
China South Industries Group (China)
2020
Materials Science & Engineering
2020
Xuzhou Medical College
2017
Second Affiliated Hospital of Xuzhou Medical College
2017
Lawrence Berkeley National Laboratory
2016-2017
University of Chinese Academy of Sciences
2017
Louisiana State University
2009-2015
Polyactide (PLA) was blended with an ethylene/n-butyl acrylate/glycidyl methacrylate (EBA-GMA) terpolymer and a zinc ionomer of ethylene/methacrylic acid (EMAA-Zn) copolymer. The phase morphology the resulting ternary blends its relationship impact behaviors were studied systematically. Dynamic vulcanization EBA-GMA in presence EMAA-Zn investigated by torque rheology, cross-link level evaluated dynamic mechanical analysis. Reactive compatibilization between PLA using Fourier transform...
Exploring a novel natural cryoprotectant and understanding its antifreeze mechanism allows the rational design of future sustainable analogues. In this study, various polysaccharides were isolated from wheat bran, activity was comparatively studied in relation to molecular structure. The further revealed based on interactions water molecules through dynamic simulation analysis. showed distinct ice recrystallization inhibition activity, structural analysis suggested that arabinoxylan,...
N-Heterocyclic carbene (NHC)-mediated ring-opening polymerization (ROP) of N-substituted N-carboxylanhydride (NR-NCA) yields cyclic poly(α-peptoid)s with controlled molecular weights (Mn = 3−30 kg mol−1) and narrow weight distributions (PDI 1.04−1.12). The reactions exhibit characteristics a living minimal chain transfer. This enables the facile synthesis diblock copoly(α-peptoid)s through sequential monomer addition. polymer architectures were verified by MALDI-TOF mass spectrometry...
Polypeptoids have recently emerged as a subject of scientific interest due to their structural resemblance existing pseudo-peptidic polymers including poly(α-peptide)s, poly(β-peptide)s, poly(2-oxazoline)s, and poly(N-substituted acrylamide)s. With demonstrated backbone degradability, biocompatibility, thermal processability, polypeptoids are potentially useful in variety biotechnological applications. Before those applications can be realized, it is important develop synthesis understand...
N-Heterocyclic carbene (NHC)-mediated polymerizations of N-butyl N-carboxyanhydride (Bu-NCA) to produce cyclic poly(N-butyl glycine)s (c-NHC-PNBGs) have been investigated in various solvents with NHCs having differing steric and electronic properties. Control over the polymer molecular weight (MW) polymerization rate is strongly dependent on solvent NHC structure. Kinetic studies reveal that propagating intermediates for low dielectric (e.g., THF or toluene) maintain architectures two chain...
N-Heterocyclic carbene (NHC)-mediated ring-opening polymerization of N-decyl-N-carboxylanhydride monomer (De-NCA) has been shown to occur in a controlled manner, yielding cyclic poly(N-decylglycine)s (c-PNDGs) with polymer molecular weights (MW) between 4.8 and 31 kg mol–1 narrow weight distributions (PDI < 1.15). The reaction exhibits pseudo-first-order kinetics respect concentration. MW increases linearly conversion, consistent living polymerization. ESI MS SEC analyses confirm the...
Cyclic brush-like polymers were synthesized by tandem organo-mediated zwitterionic polymerization and a grafting-to approach. The cyclic polymer backbone, consisting of poly(N-propargylglycine) (c-PNPG), was an N-heterocyclic carbene (NHC)-mediated ring-opening N-propargyl N-carboxyanhydride. proceeds in quasi-living manner, allowing access to c-PNPG well-defined chain length. architecture the verified size exclusion chromatography (SEC) mass spectroscopy (MS), as well scanning probe...
A series of ABC triblock copolypeptoids [i.e., poly(
Neuromorphic devices and systems with ultralow power consumption are important in building artificial intelligent systems. Here, indium tin oxide (ITO)-based neuromorphic transistors fabricated using poly(vinyl alcohol) (PVA)-based proton-conducting electrolytes as gate dielectrics. The electrical performances of the can be modulated ITO channel thickness. Fundamental synaptic functions, including excitatory postsynaptic current, paired-pulse facilitation, multistore memory, successfully...
The ability of multidimensional mass spectrometry (MS) approaches, interfacing different ionization methods with tandem (MS2) fragmentation and ion mobility (IM) separation, to characterize synthetic polymers is demonstrated for poly(α-peptoid)s synthesized by N-heterocyclic carbene (NHC)-mediated zwitterionic ring-opening polymerization. Matrix-assisted laser desorption (MALDI) causes elimination the NHC initiator, if performed in presence cationizing salts. Electrospray (ESI) softer,...
Cyclic poly(alpha-peptoid)s [a.k.a. poly(N-R-glycine)] with chiral aromatic side-chains [R = (R)- or (S)-CHMePh] have been synthesized by N-heterocyclic carbene-mediated ring-opening polymerization of N-substituted N-carboxyanhydrides (N(R-NCA)). Their linear analogs prepared primary amine-initiated the corresponding N(R-NCA). Poly[(R)/(S)-N-CHMePh-glycine] polymer molecular weights (MWs) in range 4-15 kg mol(-1) and low MW distribution (Polydispersity index (PDI) < 1.15) can be readily...
Ion coupling has provided an additional method to modulate electric properties for solid-state materials. Here, phosphorosilicate glass (PSG)-based electrolyte gated protonic/electronic coupled indium-tin-oxide electric-double-layer (EDL) transistors are fabricated. The oxide transistor exhibits good electrical performances due extremely strong proton gating behavior the electrolyte. With interfacial electrochemical doping, channel conductances of EDL can be regulated different levels,...
We report for the first time synthesis and kinetic gas hydrate inhibition of a series pseudo-polypeptides, poly(N-alkylglycine)s, with varying length alkyl side chains. The polymers have similar molecular weights performance comparison. Tests were carried out in multi-cell rocking rig at high pressure using structure-II-forming natural blend. best polymer tested was poly(N-propylglycine), being dependent upon weight water solubility.
Increasing demands of multi-functional lubricant materials with well distributed nanoparticles has been generated in the field oil lubrication. In this study, one-dimensional (1-D) acidified multi-walled carbon nanotubes (CNTs) and two-dimensional (2-D) graphene oxide (GO) sheets were dispersed together under an ultra-sonication condition to form CNTs/GO hybrids corresponding decorated uniform zero-dimensional (0-D) cerium (CeO2) prepared via a facile hydrothermal method. The tribological...
The kinetics of ethylene and propylene polymerization catalyzed by homogeneous metallocene were investigated using 2-thiophenecarbonyl chloride followed quenched-flow methods. studied catalysts are: rac-Me2Si(2-Me-4-Ph-Ind)2ZrCl2 (Mt-I), rac-Et(Ind)2ZrCl2 (Mt-II) activated with ([Me2NPh][B(C6F5)4] (Borate-I), [Ph3C][B(C6F5)4] (Borate-II), co-catalyzed different molar ratios alkylaluminum such as triethylaluminium (TEA) triisobutylaluminium (TIBA). change in molecular weight, weight...
With very fast polymerization in mild reaction conditions and unique characteristic of double bonds its synthesized polymer skeleton for further modification functionalization, ring opening metathesis (ROMP) becomes one typical processing method to obtain anion exchange membrane (AEM) fuel cells. In this paper, AEMs prepared by ROMP are reviewed. Polycyclooctene polynorbornene with both good stability high conductivity achieved different ion groups such as quaternary ammonium, phosphorus...
Linear polypeptoid macromonomers with controlled chain length and composition were prepared by norbornene methylamine-initiated copolymerization of N-ethyl N-carboxyanhydride (Et-NCA) N-butyl (Bu-NCA). Polypeptoid bottlebrush copolymers varying backbone side subsequently synthesized using the grafting-through method via ring-opening metathesis polymerization (ROMP) norbornenyl-terminated poly(N-ethyl glycine)-ran-poly(N-butyl glycine) macromonomers. The copolypeptoids are thermally...