A5015550889- Advanced Polymer Synthesis and Characterization
- biodegradable polymer synthesis and properties
- Synthetic Organic Chemistry Methods
- Pickering emulsions and particle stabilization
- Organometallic Complex Synthesis and Catalysis
- Surfactants and Colloidal Systems
- X-ray Diffraction in Crystallography
- Polymer crystallization and properties
- Crystallization and Solubility Studies
- Polymer Surface Interaction Studies
- Organoboron and organosilicon chemistry
- Metabolomics and Mass Spectrometry Studies
- Hybrid Renewable Energy Systems
- Proteins in Food Systems
- Antimicrobial Peptides and Activities
- Luminescence and Fluorescent Materials
- Ammonia Synthesis and Nitrogen Reduction
- Carbon dioxide utilization in catalysis
- Polymer composites and self-healing
- Nanomaterials for catalytic reactions
- RNA Interference and Gene Delivery
- Spectroscopy and Chemometric Analyses
- Synthesis and characterization of novel inorganic/organometallic compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Antimicrobial agents and applications
Agency for Science, Technology and Research
2011-2025
Institute of Chemical and Engineering Sciences
2018-2021
Singapore Polytechnic
2020
Vitrimers represent an emerging class of polymeric materials that combine the desirable characteristics both thermoplastics and thermosets achieved through design dynamic covalent bonds within polymer networks. However, these are prone to creep due inherent instability bonds. Consequently, there pressing demands for development robust stable chemistries. Here, we report a catalyst-free α-acetyl cinnamate/acetoacetate (α-AC/A) exchange reaction develop vitrimers with remarkable resistance....
Thermosets, characterized by their permanent cross-linked networks, present significant challenges in recyclability and brittleness. In this work, we explore a polarized Knoevenagel C═C metathesis reaction for the development of rigid yet tough malleable thermosets. Initial investigation on small molecule model reactions reveals feasibility conducting base-catalyzed solvent-free environment. Subsequently, thermosetting poly(α-cyanocinnamate)s (PCCs) were synthesized via condensation between...
Abstract Controlling the chemical composition distribution (CCD) of copolymers through optimal monomer addition profiles (OMAP) is great importance for their properties. However, requirement to know various kinetic parameters polymerization often complicates obtaining such on a time basis. A simpler approach forecast OMAP based conversions, which only requires reactivity ratios solution or bulk polymerizations. For emulsion copolymerization, it's also necessary include solubilities monomers...
A simple and straightforward approach to synthesize oil-in-water (O/W) emulsions under high salinity temperature using zwitterion-functionalized latexes are presented in this work. First, well-defined functionalized were synthesized by emulsifier-free emulsion copolymerization the presence of precursor sulfobetaine comonomer brine as a continuous phase. The surface-functionalized latex particles then characterized DLS, SEM, TEM, XPS, TGA. exhibited antipolyelectrolyte behavior at...
Abstract Vitrimers represent an emerging class of polymeric materials that combine the desirable characteristics both thermoplastics and thermosets achieved through design dynamic covalent bonds within polymer networks. However, these are prone to creep due inherent instability bonds. Consequently, there pressing demands for development robust stable chemistries. Here, we report a catalyst‐free α‐acetyl cinnamate/acetoacetate (α‐AC/A) exchange reaction develop vitrimers with remarkable...
Vesicle templated emulsion polymerization is a special form of where the polymer grown from outside vesicle, leading to nanocapsules. Cost effective nanocapsules synthesis in high demand due phasing out older methods for capsule synthesis. Although first indications this route being successful were published some 10 years ago, until now thorough understanding parameters controlling morphologies resulting template was lacking. Most often mixture different obtained, ranging solid particles...
A convenient method to fabricate functional photonic crystal arrays using self-assembled non-spherical particles that form tunable iridescent polymer opal by changing size and morphologies, thereby producing new responsive material.
Abstract Introduction of some weaker break points in otherwise all carbon backbone polymers produced via chain growth polymerizations can facilitate easy recycling and/or biodegradability. The are used to generate oligomers that then be purified from additives and reconstituted into the circular polymers. In cases, biodegradable. For both purposes, predicting controlling oligomer length is great importance. authors look at compare distributions obtained Kinetic Monte Carlo (KMC) simulations...
Extending the durability of polymer plastics and minimizing toxicity concerns to humans environment are among essential goals toward sustainability. Continuing our efforts in this area, we report herein design, optimized synthesis, migration studies macromolecular benzophenones (MBPs) using three important building blocks including poly(ethylene-co-acrylic acid), pentaerythritol, tris(2,3-epoxypropyl)isocyanurate for sustainable food packaging applications. All MBPs synthesized gram scales,...
A series of homo- and copolymers containing various quaternary ammonium ions were synthesized to determine their selectivity for targeting bacterial cells over red blood cells.
PLS, MMSR, and BTEM-MLR were successfully applied to Raman monitoring of co-polymerization.