A5073726245- Advanced Polymer Synthesis and Characterization
- Polymer composites and self-healing
- Hygrothermal properties of building materials
- Supramolecular Self-Assembly in Materials
- Innovative Microfluidic and Catalytic Techniques Innovation
- Advanced Sensor and Energy Harvesting Materials
- Click Chemistry and Applications
- Building materials and conservation
- Antimicrobial agents and applications
- Natural Fiber Reinforced Composites
- Conducting polymers and applications
- Ultrasound and Cavitation Phenomena
- Historical Medical Research and Treatments
- Cephalopods and Marine Biology
- Chemical Synthesis and Analysis
- 3D Printing in Biomedical Research
- Luminescence and Fluorescent Materials
- Science and Science Education
- Dielectric materials and actuators
- Bone Tissue Engineering Materials
- Technology in Education and Healthcare
- Electrohydrodynamics and Fluid Dynamics
- Calcium Carbonate Crystallization and Inhibition
- Urban Heat Island Mitigation
- Hydrogels: synthesis, properties, applications
University of Chicago
2018-2023
Pontifical Catholic University of Peru
2016-2017
Abstract Mechano‐activated chemistry is a powerful tool for remodeling of synthetic polymeric materials, however, few reactions are currently available. Here we show that using piezochemical reduction Cu II ‐based pre‐catalyst, step‐growth polymerization occurs via the copper catalyzed azide–alkyne cycloaddition (CuAAC) reaction to form linear polytriazole. Furthermore, polymer can be crosslinked mechanochemically same solid organogel. We envision this used harness mechanical energy...
Mechanical initiation of polymerization offers the chance to generate polymers in new environments using an energy source with unique capabilities. Recently, a renewed interest mechanically controlled has yielded many techniques for radical by ultrasound. However, other types polymerizations induced mechanical activation are rare, especially generating high-molecular-weight polymers. Herein is example piezoelectric ZnO nanoparticles free-radical species that initiate chain-growth and polymer...
Alginate is a natural polysaccharide that widely used in industrial applications. Here, beads of alginic acid, calcium, and copper alginate were prepared by the addition soluble sodium to solution hydrochloric acid or corresponding cation. The progress gelation inside was followed degree opacity at different times, which corresponded well an apparent morphology change observed freeze-dried bead cross sections analyzed scanning electron microscopy. Furthermore, diffusion Cu2+ ions across...
Synthetic polymeric materials with adaptive capabilities triggered by mechanical stimuli could significantly extend their life cycle and boost performance. To achieve this, robust mechanically responsive chemistries must be developed. Piezoelectrically mediated chemistry is an emergent area of interest for this purpose since environmental energy can harvested directly converted to chemical energy. This Viewpoint summarizes state-of-the-art knowledge about mechanochemical reactions the...
Mechanically adaptive polymers could significantly improve the life-cycle of current materials. Piezo-polymerization is a novel approach that harnesses vibrational mechanical energy through piezoelectric nanoparticles to generate chemical promoters for linear polymerization and cross-linking reactions. However, available piezo-polymerization systems rely on reactions forming irreversible covalent bonds. Dynamic linkages impart further adaptability these polymeric systems. Here we show first...
Abstract Mechanical initiation of polymerization offers the chance to generate polymers in new environments using an energy source with unique capabilities. Recently, a renewed interest mechanically controlled has yielded many techniques for radical by ultrasound. However, other types polymerizations induced mechanical activation are rare, especially generating high‐molecular‐weight polymers. Herein is example piezoelectric ZnO nanoparticles free‐radical species that initiate chain‐growth...
Abstract Mineralization is a long-lasting method commonly used by biological materials to selectively strengthen in response site specific mechanical stress. Achieving similar form of toughening synthetic polymer composites remains challenging. In previous work, we developed methods promote chemical reactions via the piezoelectrochemical effect with responses inorganic, ZnO nanoparticles. Herein, report distinct example mechanically-mediated reaction which spherical nanoparticles react...
Abstract Mechano‐activated chemistry is a powerful tool for remodeling of synthetic polymeric materials, however, few reactions are currently available. Here we show that using piezochemical reduction Cu II ‐based pre‐catalyst, step‐growth polymerization occurs via the copper catalyzed azide–alkyne cycloaddition (CuAAC) reaction to form linear polytriazole. Furthermore, polymer can be crosslinked mechanochemically same solid organogel. We envision this used harness mechanical energy...
Piezoelectrics have been widely studied for applications such as energy harvesters, sensors, and mechanochemical mediators, yet due to the trade-off in mechanical properties conversion efficiencies, most piezoelectric devices are composites of high-performance inorganics embedded within organic matrices with much lower efficiencies. There thus many reports improved effective charge coefficients (d33) by increasing composite dielectric constants via larger volume fractions fillers, among...