A5048037944- Advanced Polymer Synthesis and Characterization
- Conducting polymers and applications
- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Hydrogels: synthesis, properties, applications
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and properties of polymers
- Epoxy Resin Curing Processes
- Nanoparticle-Based Drug Delivery
- Surfactants and Colloidal Systems
- Organic Electronics and Photovoltaics
- Polymer composites and self-healing
- Polymer Surface Interaction Studies
- Thermal and Kinetic Analysis
- Photopolymerization techniques and applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Polymer Science and PVC
- Silicone and Siloxane Chemistry
- Electrospun Nanofibers in Biomedical Applications
- Pickering emulsions and particle stabilization
- Nanocomposite Films for Food Packaging
- Flame retardant materials and properties
- Microplastics and Plastic Pollution
- TiO2 Photocatalysis and Solar Cells
National Taiwan University
2014-2023
University of California, Davis
2009
The Ohio State University
2008
National Chung Hsing University
2007
University of Auckland
2007
National Taipei University of Technology
2004
California State University, Long Beach
2004
Chung Yuan Christian University
2001-2002
University of California, Berkeley
1985
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA computer model for the gel effect in free-radical polymerizationW. Y. Chiu, G. M. Carratt, and David S. SoongCite this: Macromolecules 1983, 16, 3, 348–357Publication Date (Print):March 1, 1983Publication History Published online1 May 2002Published inissue 1 March 1983https://pubs.acs.org/doi/10.1021/ma00237a002https://doi.org/10.1021/ma00237a002research-articleACS PublicationsRequest reuse permissionsArticle Views1094Altmetric-Citations233LEARN...
This work demonstrates that the bis-adduct of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is an effective inhibitor aggregation PCBM inside poly(3-hexylthiophene) (P3HT) matrix. Substituting some with bis-PCBM apparently reduces size PCBM-rich clusters, enhancing both short-circuit current density (JSC) and fill factor (FF), leading to a ∼17% increment in power conversion efficiency (PCE) for cell 8.3 wt% replacement. More importantly, tiny amount significantly improves morphological...
Abstract A redox initiator, cerium ammonium nitrate, was used to initiate the graft copolymerization of vinyl acetate (VAc) onto chitosan chain in a dispersion polymerization at 60°C. With an addition 0.5–7.5 g based on 50 VAc, monomer conversion found be between 70 and 80% after 2 h reaction. The grafting efficiency increased with amount added; yet, ratio slightly then decreased. After reaction, stable system observed surface latex particles rich chitosan. All experimental results indicated...
Abstract Poly [ N ‐isopropylacrylamide (NIPAAm)–chitosan] crosslinked copolymer particles were synthesized by soapless emulsion copolymerization of NIPAAm and chitosan. An anionic initiator [ammonium persulfate (APS)] a cationic [2,2′‐azobis(2‐methylpropionamidine)dihydrochloride (AIBA)] used to initiate the reaction copolymerization. The chitosan–NIPAAm using APS as showed homogeneous morphology exhibited characteristic lower critical solution temperature (LCST). AIBA an core–shell...
Abstract We are proposing a novel method to prepare chitosan/montmorillonite nanocomposites. The montmorillonite (MMT) clay was excavated from the mountainside of eastern Taiwan. After being purified, it incorporated with potassium persulfate (KPS) through intercalation process. As KPS‐incorporated MMT dispersed in acidified aqueous solution chitosan, KPS instantly reacted resulting cleavage polymer chains and exfoliation as well. removing unexfoliated MMT, solutions were cast form film...
Abstract In this research, thermo‐ and pH‐responsive chitosan‐based porous nanoparticles were prepared by the temperature‐dependent self assembly method. The chitosan‐ graft ‐poly( N ‐isopropylacrylamide) (CS‐ g ‐PNIPAAm) copolymer solution was through polymerization of ‐isopropylacrylamide (NIPAAm) monomer in presence chitosan (CS) using cerium ammounium nitrate as initiator. Then, CS‐ ‐PNIPAAm diluted deionized water heated to 40 °C for self‐assembly. After that, assembled form micelles...
Abstract In this research, thermo‐ and pH‐responsive nanoparticles with an average diameter of about 50–200 nm were synthesized via the surfactant‐free emulsion polymerization. The thermal/pH dual responsive properties these designed by addition a pH sensitive monomer, acrylic acid (AA), to be copolymerized N ‐isopropylacrylamide (NIPAAm) in chitosan (CS) solution. molar ratio CS/AA/NIPAAm feed was changed investigate its effect on structure, morphology, thermal‐ nanoparticles. It found that...
We simultaneously employed grazing incidence small-angle and wide-angle X-ray scattering (GISAXS GIWAXS) techniques to quantitatively study the structural evolution kinetic behavior of poly(3-hexylthiophene) (P3HT) crystallization, [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) aggregation amorphous P3HT/PCBM domains from a bulk heterojunction (BHJ) thermally unstable structure. The independent phase separation regimes on nanoscale (∼10 nm), mesoscale (∼100 nm) macroscale (∼μm) are...
In this research, an innovative approach to increase the hydrophobic property and weather stability of flexible conductive films was demonstrated. A PEDOT:PSS-PBA film prepared by using poly(styrenesulfonate)-poly(butyl acrylate) (PSS-PBA) soft latex as a polymeric template prepare poly(3,4-ethylenedioxythiophene) (PEDOT). Fluorine-modified silica synthesized surface-modified coupling agents, 3-(trimethoxysilyl) propyl methacrylate (MSMA) 1H,1H,2H,2H-perfluorooctyltriethoxysilane (PFOTES)....
The influences of different amounts propyl ester phosphazene (FR) on the curing kinetics and physical properties diglycidyl ether bisphenol A (DGEBA) epoxy prepolymer cured with diethylenetriamine (DETA) were investigated DSC, SEM, DMA, tensile testing. results revealed that FR could be a catalyst or diluent depending content. In addition, blending systems partially miscible. strength modulus blends decreased increasing FR, but elongation increased FR. © 1999 John Wiley & Sons, Inc. J Appl...
Abstract A magnetic poly(methyl methacrylate) (PMMA) composite latex was prepared by soapless emulsion polymerization in the presence of ferrofluid, and ferrofluid means a coprecipitation method. The effects various parameters, such as monomer concentration, content, initiator on conversion curve particle size particles were examined detail. results showed that two nucleation mechanisms involved according to conditions. In monomer‐rich less system, self‐nucleation PMMA dominant over entire...
Abstract Blending is an effective method for improving polymer properties. However, the problem of phase separation often occurs due to incompatibility homopolymers, which deteriorates physical properties polyblends. In this study, isotactic polypropylene was blended with low‐density polyethylene. Crosslinking agent and copolymers propylene ethylene (either random copolymer or block copolymer) were added improve interfacial adhesion PP/LDPE blends. The tensile strength, heat deflection...