A5036932555- Metal-Organic Frameworks: Synthesis and Applications
- Supramolecular Self-Assembly in Materials
- Advanced Polymer Synthesis and Characterization
- Supramolecular Chemistry and Complexes
- Polymer composites and self-healing
- Machine Learning in Materials Science
- Luminescence and Fluorescent Materials
- Nanocluster Synthesis and Applications
- Catalytic Processes in Materials Science
- Polyoxometalates: Synthesis and Applications
- Polymer crystallization and properties
- Covalent Organic Framework Applications
- biodegradable polymer synthesis and properties
Massachusetts Institute of Technology
2021-2025
Kavli Energy NanoScience Institute
2018
Imine-linked ILCOF-1 based on 1,4-phenylenediamine and 1,3,6,8-tetrakis(4-formylphenyl)pyrene was converted through consecutive linker substitution oxidative cyclization to two isostructural covalent organic frameworks (COFs), having thiazole oxazole linkages. The completeness of the conversion assessed by infrared solid-state NMR spectroscopies, crystallinity COFs confirmed powder X-ray diffraction. Furthermore, azole-linked remain porous, as shown nitrogen sorption experiments. materials...
Abstract Supramolecular polymer networks contain non-covalent cross-links that enable access to broadly tunable mechanical properties and stimuli-responsive behaviors; the incorporation of multiple unique within such materials further expands their responses functionality. To date, however, design has been accomplished through discrete combinations distinct interaction types in series, limiting logic. Here we introduce concept leveraging “nested” supramolecular crosslinks, wherein two...
Thermosets present sustainability challenges that could potentially be addressed through the design of deconstructable variants with tunable properties; however, combinatorial space possible thermoset molecular building blocks (e.g., monomers, cross-linkers, and additives) manufacturing conditions is vast, predictive knowledge for how combinations these components translate to bulk properties lacking. Data science overcome problems, but computational methods are difficult apply...
Thermosets are used in numerous industrial applications due to their excellent stabilities and mechanical properties; however, covalently cross-linked structures limit chemical circularity. Cleavable comonomers (CCs) offer a practical strategy impart new end-of-life opportunities, such as deconstructability or remoldability, thermosets without altering critical properties, cost, manufacturing workflows. Nevertheless, CC-enabled recycling of has so far been limited one cycle with 25% recycled...
The immobilization of homogeneous catalysts onto supports to improve recyclability while maintaining catalytic efficiency is often a trial-and-error process limited by poor control the local catalyst environment and few strategies append support materials. Here, we introduce modular heterogenous catalysis platform that addresses these challenges. Our approach leverages well-defined interiors self-assembled Pd12L24 metal–organic cages/polyhedra (MOCs): simple mixing catalyst-ligand choice...
Supramolecular polymer networks contain reversible crosslinks that enable access to broadly tunable mechanical properties and stimuli-responsive behaviors. The incorporation of multiple unique supramolecular interactions within such materials can further expand their responses functionality. To date, however, the design leveraging distinct has been accomplished through discrete combinations independent interactions, limiting logic. Here we introduce concept “nested” crosslinks, wherein two...
Supramolecular polymer networks contain reversible crosslinks that enable access to broadly tunable mechanical properties and stimuli-responsive behaviors. The incorporation of multiple unique supramolecular interactions within such materials can further expand their responses functionality. To date, however, the design leveraging distinct has been accomplished through discrete combinations independent interactions, limiting logic. Here we introduce concept “nested” crosslinks, wherein two...
Data science can accelerate materials discovery by learning composition-processing-performance models from pre-existing data sets, which then feed into active cycles in the laboratory. Thermoset polymer waste is a pressing environmental challenge that may be addressed accelerated of new deconstructable variants; however, combinatorial space possible monomers, crosslinkers, additives, and manufacturing conditions vast Edisonian experimentation struggle to find optimal designs. Moreover,...
The immobilization of homogeneous catalysts onto solid supports to improve recyclability while maintaining catalytic efficiency is often a trial-and-error process limited by poor control the local catalyst environment and lack modular strategies append support materials. Here, we introduce “plug-and-play” heterogenous catalysis platform that overcomes these challenges. Our approach leverages well-defined interiors self-assembled Pd12L24 metal–organic cages/polyhedra (MOCs): through simple...