Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Aerogels -- Design<br />Nanostructured materials -- Design<br />Aerogels -- Structure-activity relationships<br />Crosslinking (Polymerization)<br />Rheology<br />Small-angle x-ray scattering (1)
- Aerogels -- Mechanical properties<br />Crosslinking (Polymerization)<br />Porous materials<br />Chemical kinetics -- Effect of temperature on<br />Phenolic resins (1)
- Electroviscous effect (1)
- Mechanically strong aerogels (1)
- Microporous carbons (1)
-
- Nanostructured materials -- Design<br />Nanostructured materials -- Synthesis<br />Semiconductor nanoparticles -- Analysis<br />Nanostructured materials -- Optical properties (1)
- Particle characterization (1)
- Petal effect superhydrophobic porous materials (1)
- Polymer colloids -- Testing<br />Polymer colloids -- Mathematical models<br />Polyacrylamide gel electrophoresis<br />Polymers -- Rheology<br />Quasielastic light scattering<br />Particle size determination<br />Surface tension -- Measurement<br />Polyelectrolytes -- Testing<br />Macromolecules -- Analysis<br />Biomolecules -- Analysis<br />Structure-activity relationships (Biochemistry) (1)
- Pyrotechnique (1)
- Random close and hexagonal packing (1)
- Salt effect (1)
- Sol-gel chemistry (1)
- Structure-property relationships (1)
- Superconducting nanostructures (1)
- Surface water (1)
- Thermal Batteries (1)
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Fundamental Properties Of Colloidal Unimolecular Polymer Particles, Minghang Chen
Fundamental Properties Of Colloidal Unimolecular Polymer Particles, Minghang Chen
Doctoral Dissertations
"Colloidal Unimolecular Polymer (CUP) particles are a new genre of material formed by self-assembly into spheroidal particles due to the effect of hydrophilic/hydrophobic interactions of the polymer with a change in the solvent. The particle sizes were characterized by means of Dynamic Light Scattering with corrected viscosities instead of water's viscosity. The distribution of particle size agreed well with the distribution of molecular weight proving that the polymer had undergone unimolecular collapse. The rheology study shows the presence of surface water and its significant effect on the rheology. The primary and secondary electroviscous effects were also found to play roles …
Isocyanate-Derived Organic Aerogels: Polyurethanes, Polyureas, Polyamides And Polyimides, Chakkaravarthy Chidambareswarapattar
Isocyanate-Derived Organic Aerogels: Polyurethanes, Polyureas, Polyamides And Polyimides, Chakkaravarthy Chidambareswarapattar
Doctoral Dissertations
"Aerogels are 3D assemblies of nanoparticles with high open porosity and high surface area, and are pursued for their low density, low thermal conductivity, low dielectric constant and high acoustic attenuation. The foundation for those exceptional properties is their complex hierarchical solid framework (agglomerates of porous, fractal secondary nanoparticles). On the down side, however, aerogels are also fragile materials. The mechanical strength of silica aerogels has been improved by crosslinking the framework with organic polymers. The crosslinking polymer has been assumed to form a conformal coating on the surface of the skeletal framework bridging covalently the elementary building blocks. However, …
Creating New Superconducting & Semiconducting Nanomaterials And Investingating The Effect Of Reduced Dimensionality On Their Properties, Sukhada Mishra
Creating New Superconducting & Semiconducting Nanomaterials And Investingating The Effect Of Reduced Dimensionality On Their Properties, Sukhada Mishra
Doctoral Dissertations
"The field of nanomaterials has continued to attract researchers to understand the fundamentals and to investigate potential applications in the fields of semiconductor physics, microfabrication, nanomedicine, surface sciences etc. One of the most critical aspects of the nanomaterials research is to establish synthetic protocols, which can address the underlying product requirements of reproducibility, homogenous morphology and controlled elemental composition. We have focused our research in exploring synthetic routes for the synthesis of superconducting and semiconducting nanomaterials and analyze their structure--property relationship through detailed characterizations. The first part of dissertation is focused on the synthesis of superconducting FeSe nanostructures using catalyst …
Polybenzoxazine Aerogels: Synthesis, Characterization, Conversion To Porous Carbons, And Energetic Composites, Shruti Mahadik-Khanolkar
Polybenzoxazine Aerogels: Synthesis, Characterization, Conversion To Porous Carbons, And Energetic Composites, Shruti Mahadik-Khanolkar
Doctoral Dissertations
"Aerogels are nanoporous, low-density bulk objects, consisting of three-dimensional assemblies of nanoparticle. Structured similarly, polymeric aerogels are emerging as a mechanically strong alternative to traditional silica aerogels, which are fragile. Amongst polymeric aerogels, those based on polybenzoxazine (PBO - a type of phenolic resin), are extremely robust and comprise an economic alternative to resorcinol-formaldehyde aerogels, also a class of phenolic resins, as the main source of carbon aerogels. The drawback of the PBO chemistry has been the long (days) processing time at high-temperatures (>130 ºC). Herewith, we have developed an energy- and time-efficient process to PBO aerogels by inducing …