Search Results - Polymers

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Selective recovery of polypropylene (and polyethylene) from mixed plastic wastes
Project ID: D2021-43 Background Polypropylene (PP) is a thermoplastic polymer used in packaging materials, consumer goods, automotive components, and medical devices. It is difficult to recover PP from mixed plastic waste streams; PP has a similar density to polyethylene (PE) and cannot be selectively separated from PE via the sink-float methods...
Production of polyesters from bio-based feedstocks
Project ID: D2014-20 Background Polyesters are often used to make fabric for clothing and other household items. Manufacturers of polyesters typically use non-renewable fossil fuels as the feedstock, resulting in an emission intensive and environmentally harmful process. On the other hand, furfural is a platform chemical and bio-based feedstock derived...
Novel Class of Materials for Boron Extraction
Project ID: D2009-11Invention novelty: The present invention comprises of a novel class of ionic liquid and polymeric ionic liquid materials that are highly selective for boron and serves application in boron extraction. Value proposition: The hazardous effects of drinking and irrigation water have resulted in many boron elimination technologies,...
Functionally graded graphene transient electronics
Project ID: D2018-22Background It is estimated that electronics account for 42 million tons of waste per year worldwide. As a result, electronic manufacturers have become interested in transient electronics. They contain environmentally benign components that can be degraded over time in a natural environment. Transient electronics can be used to better...
Enhanced Anti-Fouling Properties of Novel Composite Material
Project ID: D2013-31 Novelty: Development of a novel electromagnetic polymer composite material for enhanced anti-fouling effects. Background: Biofouling (bacterial attachment to solid surfaces and colonization) is the main source of bacterial infection and poses potentially harmful impacts on human health. Medical devices, food packaging, and drinking...
Pyrrole-Based Composites for Metal Extraction and Analysis
Project ID#: D2018-57Invention DescriptionThe researchers at the University of Toledo have developed a chelating polypyrrole powder that can be used for filtration by directly mixing with samples and passing the sample through a filter. Desorption is then accomplished by simply dropping the pH. Applications• Selective microextraction devices•...
Charge mosaic membranes for desalination of brackish water
Project #D2019-22Background Reverse osmosis is a common technique used in desalination; it utilizes high pressure to separate water from salt. Although this separation technique is widely used for desalination, it would be advantageous to use a membrane that allows for selective transport of salt relative to water. Charge mosaic (CM) membranes...
Pressure sensitive polymer films with reversible porosity
Project ID: D2018-23BackgroundPressure sensing is used in the automobile, packaging, food, and pharmaceutical industries. Commercially available pressure-sensing films rely on a reaction created when microcapsules burst upon applied pressure. However, these films only function in a limited temperature range and do not work in wet or oily environments....
Cross-linked anion exchange membrane
Project ID: D2018-55Background Increasing population drives increasing energy demand. Fuel cells and electrochemical devices are under investigation for use as an energy supply. However, the devices may not being reaching their commercialization potential; Proton Exchange Membranes (PEMs) are limited by the use of platinum catalysts, fuel crossover,...
Iron Pyrite Nanocrystal Back Contact for CdTe Solar Cells
Project ID: D2014-32 Background Photovoltaic (PV) cells have been produced with a wide variety of materials for each functional layer. The typical PV is a substrate layer coated with a semiconductor layer and two ohmic contacts. Thin film solar cells use a thin absorbing layer, such as Cadmium telluride (CdTe). CdTe is the most eco-friendly, high efficiency,...
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