A5083001769- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Silicone and Siloxane Chemistry
- Synthesis and properties of polymers
- Esophageal Cancer Research and Treatment
- Advanced ceramic materials synthesis
- Gastric Cancer Management and Outcomes
- Radiomics and Machine Learning in Medical Imaging
- biodegradable polymer synthesis and properties
- Synthesis and characterization of novel inorganic/organometallic compounds
- Fiber-reinforced polymer composites
- Molecular Junctions and Nanostructures
- Mesoporous Materials and Catalysis
- Polymer Nanocomposites and Properties
- Advanced Photocatalysis Techniques
- Metal and Thin Film Mechanics
- Colorectal Cancer Screening and Detection
- Energetic Materials and Combustion
- Bone Tissue Engineering Materials
- Lung Cancer Diagnosis and Treatment
- Microfluidic and Capillary Electrophoresis Applications
- Crystallography and molecular interactions
- Nanomaterials for catalytic reactions
- Nanocomposite Films for Food Packaging
Mayo Clinic
2022
Flemish Institute for Technological Research
2022
Michigan State University
2018-2021
Universidad Nacional de Colombia
2014
Closed double-decker shaped silsesquioxanes (DDSQ-(Ph)8-2((Me)(R))) with R as phenyl, para-phenylamine, and para-phenylethynyl phenyl were synthesized. Isolation of nearly pure trans cis isomers was obtained by fractional recrystallization. Crystallographic thermal characteristics these isolated X-ray diffraction a single crystal differential scanning calorimetry (DSC). It observed that melting temperature increases the size group decreases from to magnitude entropy difference at increases....
Amino-alkylphosphonic acid-grafted TiO2 materials are of increasing interest in a variety applications such as metal sorption, heterogeneous catalysis, CO2 capture, and enzyme immobilization. To date, systematic insights into the synthesis-properties-performance correlation missing for materials, albeit giving important know-how towards their applicability limitations. In this work, impact chain length modification conditions (concentration temperature) amino-alkylphosphonic on surface...
Analytical separation parameters of a side-capped octaphenyl double-decker shaped silsesquioxanes (DDSQ) mixture with zero, one, and two hydroxyl groups were obtained HPLC. These extrapolated for large scale preparative separation. The frontal analysis was experimentally performed each component in the to obtain linear adsorption isotherm parameters. slopes isotherms related experimental HPLC retention times function predict other mixtures similar characteristics. chromatograms simulated...
Biopolymer films have been prepared by continuous aqueous tape casting, using dextran–water solutions. The effect of dextran concentration and solution temperature on the flow behavior was studied steady dynamic rheological measurements. Rheological measurements revealed that increasing strongly increased viscosity, while reduced viscosity marginally, limiting film processing techniques to casting. Elastic effects were also seen in biopolymer rheology studies, no changes fluid internal...
Surface functionalization of complex three-dimensional (3D) porous architectures has not been widely investigated despite their potential in different application domains. In this work, silanization was performed silica 3D-printed structures, and the homogeneity functional groups within architecture by comparing extent walls core monolith. A ink used for direct writing (DIW) to shape fibers monoliths with stacking designs. The surfaces were functionalized 3-aminopropyl(triethoxysilane)...
Thermosetting polyimides terminated with phenylethynly phthalic imides are the current state-of-the-art high temperature resin for use in structural composite applications. However, due to presence of imide group these resins often suffer moisture uptake leading property degradation during use. In addition, need remove condensation near crosslinking reaction as well glass transition unreacted oligomers, processing window this class thermosetting is very narrow. Hence, develop compounds same...
Abstract Bisfunctional dichlorosilanes were reacted with tetrasilanol of double-decker shaped octaphenylsilsesquioxane (DDSQ) to form fully condensed DDSQ compounds. The crystallographic and thermal characteristics these compounds examined. For capped bearing linear aliphatic moieties, as the number carbon increases from methyl n -butyl (from 1 4) melting temperature, T m , dropped 546 K 416 K. While for cycloaliphatic, moiety changes cyclopentyl cyclohexyl, value 533 555 Surprising, highest...