A5004856828- Polymer crystallization and properties
- biodegradable polymer synthesis and properties
- Polymer Nanocomposites and Properties
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Polymer Synthesis and Characterization
- Block Copolymer Self-Assembly
- Supramolecular Self-Assembly in Materials
- Organic Electronics and Photovoltaics
- Polymer composites and self-healing
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Supramolecular Chemistry and Complexes
- Polydiacetylene-based materials and applications
- Liquid Crystal Research Advancements
- Mesoporous Materials and Catalysis
- X-ray Diffraction in Crystallography
- Synthesis and Properties of Aromatic Compounds
- Silicone and Siloxane Chemistry
- Covalent Organic Framework Applications
- Molecular Junctions and Nanostructures
- 2D Materials and Applications
- Dendrimers and Hyperbranched Polymers
- Hydrogels: synthesis, properties, applications
National Synchrotron Radiation Research Center
2016-2025
National Taiwan University of Science and Technology
2000-2024
National Hsinchu University of Education
2019
National Taiwan University
2008-2009
National Tsing Hua University
2008
National Dong Hwa University
2008
Taiwan Textile Research Institute
2008
Tatung University
2007
University of Massachusetts Lowell
1987
At the National Synchrotron Radiation Research Center, a small/wide-angle X-ray scattering (SAXS/WAXS) instrument has been installed at BL23A beamline with superconducting wiggler insertion device. This is equipped double Si(111) crystal and Mo/B 4 C multilayer monochromators, an Si-based plane mirror that can selectively deflect beam downwards for grazing-incidence SAXS (GISAXS) studies of air–liquid or liquid–liquid interfaces. The SAXS/WAXS instrument, situated in experimental hutch,...
A facile synthesis route for preparing SBA-15 silica of platelet shape and very short mesochannels (150−350 nm) was developed by introducing a small amount Zr(IV) ions in the solution. The can be easily extended to prepare materials with various organic functional groups up 1.87 mmol/g loading one pot. In situ XRD freeze-fracture replication TEM were found powerful techniques studying self-assembly processes. 150−350 nm formed because fast rate P123 micelles TEOS accelerated are superior...
Abstract The lack of structural information impeded the access efficient luminescence for exciplex type thermally activated delayed fluorescence (TADF). We report here pump-probe Step-Scan Fourier transform infrared spectra composed a carbazole-based electron donor (CN-Cz2) and 1,3,5-triazine-based acceptor (PO-T2T) codeposited as solid film that gives intermolecular charge transfer (CT), TADF, record-high cyan organic light emitting diodes (external quantum efficiency: 16%). transient...
Thermally induced shape memory is an attractive feature of certain functional materials. Among the polymers, elastomers (SMEs) especially those with biodegradability have great potential in biomedical field. In this study, we prepared waterborne biodegradable polyurethane SME based on poly(ε-caprolactone) (PCL) oligodiol and poly(l-lactic acid) (PLLA) as mixed soft segments. The ratio segments polyurethanes was optimized for behavior. thermally mechanism series clarified using differential...
Directional solution coating by the Chinese brush provides a facile approach to fabricate highly oriented polymer thin films finely controlling wetting and dewetting processes under directional stress. The biggest advantage of over normal western is freshly emergent hairs used, whose unique tapered structure renders dynamic balance liquid within multiple forces when interacting with liquid. Consequently, steadily held without any unexpected leakage, making transfer proceed in...
Transition metal high-entropy oxides (HEOs) are an attractive class of anode materials for high-performance lithium-ion batteries (LIBs). However, owing to the multiple electroactive centers HEOs, Li
The strain-stiffening and self-healing capabilities of biological tissues enable them to preserve the structures functions from deformation damage. However, biodegradable hydrogel materials with both these biomimetic characteristics have not been explored. Here, a series strain-stiffened, hydrogels are developed through dynamic imine crosslinking semiflexible O-carboxymethyl chitosan (main chain) flexible dibenzaldehyde-terminated telechelic poly(ethylene glycol) (crosslinker). can be...
The ability of molecules to move and rearrange in the solid state accounts for polymorphic transition stimuli-responsive properties molecular crystals. However, how crystal structure determines motion remains poorly understood. Here, we report that a three-dimensional (3D) supramolecular gear network green-emissive polymorph 1G dialkylamino-substituted anthracene-pentiptycene π-system (1) enables an unusual bifurcated into yellow-emissive (1Y) new (1G*) via 3D correlated rotation. 90°...
Multifunctional binary metal oxide (Ti0.7Ru0.3O2), a novel functionalised co-catalytic support for Pt, is synthesized in simple one-step hydrothermal process at low temperature. In practical applications Ti0.7Ru0.3O2 offers both excellent improvements electrocatalytic activity and durability over commercial carbon supported Pt PtRu catalysts direct methanol fuel cell (DMFC), while the molecular level it provides advantages terms of its high surface area, strong interactions between support....
A green production process for producing nickel-loaded LaxNa1−xTaO3, using a hydrogen peroxide-water based solvent system (HW-derived), is reported. The H2 evolution of the HW-derived sample about 1.8 times higher than samples made ethanol as solvent. activity can be further increased 9.3 by depositing nanosized nickel co-catalyst on surface La0.02Na0.98TaO3. Possible mechanisms from pure water and aqueous methanol solutions in three states (i.e.Ni metal, NiO oxide, Ni/NiO...
Two-dimensional (2D) Dion–Jacobson (DJ) perovskite solar cells (PSCs), despite their advantage in versatility of n-layer variation, are subject to poor photovoltaic efficiency, particularly the fill factor (FF), compared three-dimensional counterparts. To enhance performance DJ PSCs, process growing crystals and hence corresponding morphology perovskites prime importance. Herein, we report fast nonisothermal (NIT) crystallization protocol that is previously unrecognized for 2D significantly...
We present a breakthrough in the synthesis and development of functional gas-responsive materials as highly potent anticancer agents suitable for applications cancer treatment. Herein, we successfully synthesised stimuli-responsive multifunctional material (I-R6G) consisting carbon dioxide (CO2)-sensitive imidazole moiety spirolactam-containing conjugated rhodamine 6G (R6G) molecule. The resulting I-R6G is hydrophobic non- or weakly fluorescent. Simple CO2 bubbling treatment induces to...
In this study, we synthesized two novel 1,3,4-oxadiazole-based bent-core liquid crystals (OXD7*, OXD5B7F*) containing a chiral tail that display broad ranges of the blue phase III (34 and 7 K, respectively); characterized them using polarized optical microscopy, differential scanning calorimetry, circular dichroism. The electro-optical responses both these are much faster than those previously reported single-component blue-phase crystals. To optimize its performance, mixed OXD7* (the range...
A novel one‐trough synthesis via an air‐water interface is demonstrated to provide hexagonally packed arrays of densely spaced metallic nanoparticles (NPs). In the synthesis, a mesostructured polyoxometalate (POM)‐silicatropic template (PSS) first self‐assembled at interface; upon UV irradiation, anion exchange cycles enable free‐floating PSS film continuously uptake gold precursors from solution subphase for diffusion‐controlled and POM‐site‐directed photoreduction inside silica channels....
Cryogels are matrices that formed in moderately frozen solutions of monomeric or polymeric precursors. They have the advantages interconnected macropores, structural stability, and compressibility. Meanwhile, thermally induced shape memory is an attractive feature certain functional materials. Although there been several studies concerning shape-memory cryogels, little work has conducted on cryogels with biodegradability. In this study, a water-based biodegradable difunctional polyurethane...
Mechanochromic, tough and healable polyurethane films are synthesized their properties thoroughly characterized. The optimum utilized to explore the potential applications of shape memory flexible capacitor devices.
Intrinsically stretchable conductive self-healable organogels containing poly(lipoic acid), Al3+ ion, tannic acid, and reduced graphene oxide are produced in this report. These noncovalent networks interlocked through physical (hydrogen coordination) bonds offered high stretchabilities mechanical strengths as well fast self-healing behaviors. The optimum organogel-based sensor showed outstanding pressure sensitivities (0.94 kPa-1 up to 10 1.07 for 10-50 kPa) strain responses (corresponding...
Self-healing properties, originating from the natural healing process, are highly desirable for fitness-enhancing functionality of biomimetic materials. Herein, we fabricated recombinant spider silk by genetic engineering, in which Escherichia coli (E. coli) was employed as a heterologous expression host. The self-assembled hydrogel obtained through dialysis process (purity > 85%). with storage modulus ~250 Pa demonstrated autonomous self-healing and high strain-sensitive properties...
This study explores the temperature-dependent crystallization and morphology of poly(ε-caprolactone) (PCL) blended with poly(phenyl methacrylate) (PPhMA) in an 80/20 ratio, revealing distinct spherulitic structures. At lower temperatures, ring-banded spherulites form, transitioning to zigzag-banded at moderate temperatures camellia flower-like morphologies higher temperatures. High-resolution SEM imaging structure highlights densely packed, edge-on lamellae lobed rims, forming a dome-shaped...