A5101949654- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Block Copolymer Self-Assembly
- Advanced ceramic materials synthesis
- Advanced Polymer Synthesis and Characterization
- Aluminum Alloys Composites Properties
- biodegradable polymer synthesis and properties
- Polymer Surface Interaction Studies
- Crystallography and molecular interactions
- Silicone and Siloxane Chemistry
- Electrospun Nanofibers in Biomedical Applications
- Anodic Oxide Films and Nanostructures
- Magnetism in coordination complexes
- Advanced materials and composites
- Surface Modification and Superhydrophobicity
- Porphyrin and Phthalocyanine Chemistry
- Mesoporous Materials and Catalysis
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Tissue Engineering and Regenerative Medicine
- Surface Chemistry and Catalysis
- Supercapacitor Materials and Fabrication
- Metal-Catalyzed Oxygenation Mechanisms
- MXene and MAX Phase Materials
- Synthesis and properties of polymers
Zhejiang University
2005-2024
Zhejiang International Studies University
2024
Nanchang Hangkong University
2017-2023
Hebei University of Technology
2020-2022
Shanghai Children's Medical Center
2019-2020
University of Massachusetts Amherst
2009-2013
Texas A&M University
1986-2002
Polymer vesicles made from poly(isoprene-b-styrene-b-2-vinyl pyridine) (PI-b-PS-b-P2VP) triblock copolymer confined within the nanopores of an anodic aluminum oxide (AAO) membrane are studied. It was found that these have well-defined, nanoscopic size, and complex microphase-separated hydrophobic membranes, comprised PS PI blocks, while coronas formed by P2VP block. Vesicle formation tracked using both transmission scanning electron microscopy. A mesh-like morphology in at a well-defined...
A promising vascular scaffold must possess satisfying mechanical properties, great hemocompatibility, and favorable tissue regeneration. Combining natural with synthetic materials is a popular method of creating/enhancing such scaffolds. However, the effect additional modification on requires further exploration.We selected polycaprolactone (PCL), which has excellent properties biocompatibility can be combined collagen. Electrospun fibers created using PCL/collagen solution were used to...
Rayleigh instabilities in bilayers of poly(methyl methacrylate) (PMMA) and polystyrene (PS) confined within the cylindrical nanoporous anodic aluminum oxide (AAO) membranes were investigated. The bilayered nanotubes thermally annealed to induce phase separation films. For short annealing times, transformed into nanorods with periodic encapsulated air pockets. With longer air-pockets coalesced form columns air. Small inclusions encased domains PS were, turn, incorporated PMMA nanorods....
Poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) nanostructures with multiple morphologies were fabricated by immersing PS-b-P4VP nanotubes in ethylene glycol, a nonsolvent for PS and good solvent P4VP, at different temperatures. Mesoporous structures generated from uniform nanoscopic wormlike micelles due to solvent-induced reconstruction when the spherical micellar heated above glass transition temperature of block. The mesoporous can be converted into inorganic oxide structures, like SiO2...
We present a simple route to prepare hierarchical structures by allowing the partial diffusion of polymer microspheres into nanopores anodic aluminum oxide (AAO) templates. Polystyrene (PS) were first spread onto silicon substrate and allowed self-assemble well-ordered monolayers microspheres. Upon heating above glass-transition temperature, PS pores AAO occurred only at in contact with membrane. After removal membrane, ordered arrays capped nanorods produced, yielding surfaces topographies...
A deformable and flexible Li/CGPE/LiFePO<sub>4</sub> cell based on CGPE-3 exhibited a high specific capacity superior cycling stability for lithium-ion batteries.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and crystal structure of a nine-coordinate gadolinium(III) complex 1,7,13-triaza-4,10,16-trioxacyclooctadecane-N,N',N"-triacetic acidDian Chen, Philip J. Squattrito, Arthur E. Martell, Abraham ClearfieldCite this: Inorg. Chem. 1990, 29, 22, 4366–4368Publication Date (Print):October 1, 1990Publication History Published online1 May 2002Published inissue 1 October...
High-density arrays of highly ordered ferritin nanocages are fabricated through the guided assembly thiol-modified on prepatterned gold nanodots, which prepared by block copolymer micelle lithography. One and only one nanocage is anchored to each nanodot, as confirmed scanning electron force microscopy. Detailed facts importance specialist readers published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted authors. Please...
The dewetting behavior of polystyrene (PS) films immersed in nonsolvent, ethylene glycol, was investigated at temperatures above the glass transition temperature on planar interfaces and walls cylindrical nanopores where interfacial interactions were varied. PS nanostructures with different shaped end-caps produced when nanotubes, confined within an anodic aluminum oxide (AAO) membrane, 130 °C. This system provides easy approach for fabricating polymer shapes that can be used to develop...
We investigated the formation of helical phase (H*) chiral block copolymers polystyrene-b-poly(l-lactide) (PS-b-PLLA) using transmission electron microscopy, small-angle X-ray scattering, and wide-angle diffraction. In particular, influence solvent affinity for either rate evaporation on morphology formed during solution-casting were examined. The was adjusted by changing temperature solution-casting, while between various solvents PS or PLLA blocks rationalized Hansen solubility parameters....
The ordering of a chiral block copolymer (BCP*) polystyrene-b-poly(d-lactide) during the solvent-casting process was studied in real time using situ small-angle X-ray scattering (SAXS) and wide-angle diffraction (WAXD) simultaneously. Three different solvents, namely benzene, dimethylformamide, 1,3-dioxolane, were used. It found that, according to solution phase behavior these BCPs*, there three stages morphology development solvent removal. Initially, removal same for all solvents studied....
We demonstrate a simple route for the preparation of 1 inch long continuous gold nanowires having an average diameter 35 nm by electrospinning block copolymer solution. Fibers with diameters 120–160 were collected from 12 wt% polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) copolymer–gold salt solution at three different applied voltages. In order to make nanowires, electrospun fibers immersed in ethanol. Subsequently, oxygen plasma treatment was degrade polymers completely and...
Abstract A symmetric diblock copolymer, poly(pentafluorostyrene‐ b ‐styrene) (PPFS‐ ‐PS), is synthesized by atom transfer radical polymerization (ATRP). The behavior of PPFS‐ ‐PS thin films on silicon wafers investigated. Lamellar microdomains oriented parallel to the film surface are formed when heated 220 °C for 24 h, due preferential interfacial interactions and low energy PPFS. An electric field used overcome fluorinated block with substrate so as force lamellar orient normal surface.
There is an urgent need to design a tissue-engineered vascular graft that exhibits good biocompatibility and sufficient mechanical strength repair facilitate regeneration of defective tissue. It generally accepted multi-layer stents can be used simulate the structure function natural blood vessels. Here, we developed new three-layer tubular rolled from single Poly(L-lactide-co-caprolactone) electrospun membrane. We electrospinning technique place three different structures on membrane such...
In this work, a fast and mild in-situ oxidization hydrothermal method was developed to fabricate the nickel–cobalt layered double hydroxides (Ni–Co LDHs) on Ni foam. The Ni–Co LDHs with nanoarrays nanopetals structures were synthesized by in situ oxidizing foam mixed solvent of cobalt chloride hexahydrate (CoCl[Formula: see text]H 2 O) hydrogen peroxide (H O ) at 90[Formula: text]C for 3[Formula: text]h. electrochemical performance tests indicate electrodes have high areal capacitance value...
Abstract In this work, two kinds of diacid monomers were synthesized by a convenient scheme, where 4‐hydroxy‐3‐methoxybenzoic acid (vanillic acid) or 4‐hydroxy‐3,5‐dimethoxybenzoic (syringic directly condensated with succinic chloride. Corresponding polyanhydrides obtained melt polycondensation. Copolyanhydrides composed the new and sebacic (SA) further prepared characterized NMR, DSC, fluorometer. The polyanhydride emit strong fluorescence have similar fluorescent spectra to poly(di( p...