A5069591322- Advanced Polymer Synthesis and Characterization
- biodegradable polymer synthesis and properties
- Polymer composites and self-healing
- Dendrimers and Hyperbranched Polymers
- 3D Printing in Biomedical Research
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Synthesis and properties of polymers
- Hydrogels: synthesis, properties, applications
- Microbial Fuel Cells and Bioremediation
- Radiation Therapy and Dosimetry
- Radiation Effects in Electronics
- Mesenchymal stem cell research
- Photodynamic Therapy Research Studies
- Supercapacitor Materials and Fabrication
- Nanoplatforms for cancer theranostics
- Membrane Separation and Gas Transport
- Synthetic Organic Chemistry Methods
- Particle physics theoretical and experimental studies
- Electrocatalysts for Energy Conversion
- Block Copolymer Self-Assembly
- Polymer crystallization and properties
- Tissue Engineering and Regenerative Medicine
- Environmental and Analytical Chemistry Studies
- Medical Imaging Techniques and Applications
Taipei Veterans General Hospital
2023-2025
Iowa State University
2016-2024
University of Indianapolis
2021-2023
Indiana University – Purdue University Indianapolis
2021-2023
Bissell (United States)
2021-2023
National Tsing Hua University
2020-2022
Zhejiang Ocean University
2020
National Taiwan University
1997-2017
Chang Gung University
2006
The design of efficient catalysts capable delivering high currents at low overpotentials for hydrogen evolution reactions (HERs) is urgently needed to use in practical applications. Herein, we report platinum (Pt) alloyed with titanium (Ti) from the surface Ti3C2Tx MXenes form Pt3Ti intermetallic compound (IMC) nanoparticles (NPs) via situ coreduction. In X-ray absorption spectroscopy (XAS) indicates that Pt undergoes a temperature-dependent transformation single atoms compounds, and...
This work investigated the mass transfer of a rotating packed bed (RPB) with emphasis on effects packing's size, shape, material, and surface property. Experimental results show that there is no obvious relationship between at kLa. Among various shapes packings, coefficients Raschig rings Intalox saddles are lower than those others, while kLa wire meshes highest. As to materials, similar for acrylic, glass, ceramic, stainless steel beads. Besides, values hydrophobically treated packings...
A waterborne, UV-blocking, and visually transparent nanocomposite coating was formulated with ZnO nanoparticles 2-hydroxyethyl cellulose (HEC). The is highly effective (<5% UV ∼65% visible transmittance), the film thickness (0.2–2.5 μm) ∼100 times thinner than conventional coatings of similar UV-blocking performance. superior properties are due to fractal structures assembled within HEC matrix, revealed by scanning electron microscopy small-angle X-ray scattering (SAXS). Changing binder...
The tumor microenvironment (TME) is known to direct cancer cell growth, migration, invasion into the matrix and distant tissues, confer drug resistance in cells. While multiple aspects of TME have been studied using vitro, ex vivo, vivo models engineering tools, influence viscoelasticity on pancreatic cells its associated remained largely unexplored. In this contribution, we synthesized a new biomimetic hydrogel with tunable stiffness stress-relaxation for evaluating effect (PCC) behaviors...
Here we report the reversible addition–fragmentation chain transfer (RAFT) polymerization of acrylated epoxidized soybean oil (AESO), a cross-linker molecule, to high conversion (>50%) and molecular weight (>100 kDa) without macrogelation. Surprisingly, gelation is suppressed in this system far beyond expectations predicated both on Flory-Stockmeyer theory multiple other studies RAFT featuring cross-linking moieties. By varying AESO initiator concentrations, show how intra- versus...
An alternate synthesis route was developed to prepare norbornene-functionalized poly(ethylene glycol) (PEG) from reacting multiarm PEG with carbic anhydride. The macromer, PEGNBCA, permits photo-cross-linking of thiol-norbornene hydrogels kinetics comparable conventional PEGNB macromer. In addition, PEGNBCA provides an additional carboxylate group for further conjugation amine-bearing molecules. Interestingly, are highly susceptible hydrolytic degradation through enhanced ester hydrolysis....
Here we present an approach for selectively modifying the properties of semicrystalline polymers by introducing ″bioadvantaged″ counits. With this approach, unique functionality biomass can be leveraged to tailor amorphous phase with minimal impact on crystallinity and thermomechanical properties. As a model case, PA 6,6 copolyamides were produced using bioadvantaged monomer trans-3-hexenedioic acid (t3HDA). The analogous structure t3HDA adipic acid, monomer, allows seamless integration....
Background: Unlike conventional photon radiotherapy, particle therapy has the advantage of dose distribution. Carbon-ion radiotherapy is also advantageous in terms biological effectiveness and other radiobiological aspects. These benefits lead to a higher response probability for previously known radioresistant tumor types. Therefore, Taipei Veterans General Hospital, which located northern district Taipei, built first carbon-ion irradiation facility Taiwan. Methods: Hospital completed phase...
In this article, we extend the understanding of gelation suppression in reversible addition–fragmentation chain-transfer (RAFT) polymerization systems with long primary chains and high crosslinker content, regimes which have been mostly overlooked to date. Using a model methacrylate system, gel point, apparent propagation rate constants, polymer architectures are seen vary systematic fashion. By combining our experimental data several related studies, introduce new phenomenological...
Assembling halide perovskites into layered structures holds promise for addressing chemical and phase stability challenges; however, several other challenges need to be addressed create efficient stable perovskite devices. Layered (LHPs) suffer from a broad distribution of layer thicknesses band gaps within thin films. Reducing polydispersity could substantially improve charge transport LHP films the performance LHP-based solar cells. Herein, we focused on layering α-CsPbI3...
Glycerol–acrylic RAFT-produced thermoplastics with excellent mechanical properties and tack were used to make environmentally friendly wood adhesives.
Here we report dynamic and thermodynamic aspects of the self-assembly in a series branched-chain soybean-oil-derived styrenic block copolymers produced via reversible addition–fragmentation chain transfer (RAFT) polymerization. These biobased materials display unusual domain expansion which has not been seen conventional petroleum-based copolymers. The architecture poly(styrene-b-acrylated epoxidized soybean oil) (PS–PAESO) varies from star-like to star-brush-like owing bulk...
Block copolymers derived from glycerol, a cost-effective and plentiful resource, have demonstrated significant potential for pressure-sensitive adhesive (PSA) applications. This study focuses on functionalizing two monomers, acrylated glycerol solketal acrylate, to synthesize (meth)acrylate-based block copolymers, poly(methyl methacrylate-block-acrylated glycerol) (MMAAG) poly(isobornyl acrylate-block-solketal acrylate-block-isobornyl acrylate) (IBASA), using reversible...
A new class of temperature responsive polymer, termed PADO, is synthesized by reversible addition-fragmentation chain-transfer polymerization. Synthesized from copolymerization diacetone acrylamide (DAAM), di(ethylene glycol) ethyl ether acrylate, and oligo(ethylene methyl PADO polymer phase separates at above its lower critical solution (36-42 °C) due to enhanced hydrophobic interactions between the short ethylene glycol side chains. Solution polymers exhibit injectable shear-thinning...
Here we report microphase-separated poly(styrene-block-dimethylsiloxane) (PS-b-PDMS) as a reinforcing filler in PDMS thermosets that overcomes the long-standing problem of aging processing silica-reinforced silicone. Surprisingly, PS-b-PDMS reinforced composites display comparable mechanical performance to silica-modified analogs, even though modulus PS is much smaller than silica and there no evidence percolation with respect rigid domains. We have found few unique characteristics...
Here, we present an approach for developing the next generation of bio(meth)acrylates using glycerol ketals as a platform property differentiation. Crude glycerol, biodiesel byproduct, and ketones, derived from biomass valorization, are building blocks these polymeric materials. Biobased materials witnessing prominent boom in research commercialization due to increased awareness about carbon footprint depletion petroleum resources. Biodiesel biopolymers major linchpins improve sustainable...
Here, we report all-polymer polysiloxane composites that overcome the long-standing processing problems of silica-reinforced silicone rubbers. Polystyrene fillers are dispersed with styrene/dimethylsiloxane symmetric diblock and triblock copolymers control filler morphology, filler–matrix interactions, filler–filler interactions. Surprisingly, not only rival traditional in mechanical properties cured materials but also have better processability stability than silica-filled compound before...
A compact and fast temperature-response heat pump water heater was designed using multiple tanks a sequential control device. The supply tank heated as priority by freon-line switching device to increase the temperature recovery speed. dual-tank prototype with 100-liter capacity built tested. experimental results show that time for of from 42°C 54°C reaches 10–20 minutes COP 2.0–3.0 during various seasons. tests an energy saving around 50%–70% compared electrical can be obtained. hot...
Abstract The efficient conversion of a living anionic polymer chain end to macrochain transfer agent suitable for reversible addition–fragmentation (RAFT) polymerization is reported. Conversion the efficiency reached as high 97% by capping polyanion with alcohol, coupling α‐bromoisobutryl bromide, followed atom‐transfer radical bis(thiobenzyl)disulfide add functionality. To our knowledge, this most marriage and reported date, can be carried out under common industrial processing conditions....
We report a facile method to produce isolatable hollow-core elastomeric vesicles, "nanoballoons", prepared via block copolymer self-assembly in polymer blend. Poly(isoprene-block-dimethylsiloxane) (PI–PDMS) diblock copolymers are blended with PDMS homopolymers (h-PDMS) as "solvent" phase template the of PDMS-tethered vesicles PI walls. The walls subsequently crosslinked yield mechanically stabilized vesicles. h-PDMS inner core and matrix separated from by dialysis matrix-free nanoballoons....