The University of Massachusetts Amherst

Search Results - chemicals

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Polymeric Ammonium Halides to Tune Color Polymer-Perovskite Nanocrystal Composites
This invention demonstrates the leveraging of an ammonium halide-containing copolymer or a guanidium halide-containing copolymer to color tune lead halide perovskite nanocrystals (NCs). These multifunctional ligands boost the photoluminescence quantum yield and facilitate a route to control inter-NC halide exchange kinetics based on binding of the polymer chains to the NC surface and their solvent-responsive aggregation.

Published: 12/16/2024   |   Inventor(s): Todd Emrick, Christopher Cueto
Category(s): Chemicals, Material science, Nanotechnology, Engineering
Reactive Particles for Cold Spray Coatings
This invention demonstrates solid or semi-solid microparticles that undergo crosslinking and polymerization upon contacting a substrate to form a coating. The microparticles are maintained in an un-reacted state until delivered using cold spray processes where they are propelled using a gas stream at a pre-determined temperature and velocity. The process does not require volatile organic solvents or aqueous vehicles, nor plural component spray or two component formulations with limited shelf life but still deliver uniform coating.
Published: 11/18/2024   |   Inventor(s): Jessica Schiffman, Victor Champagne, John Klier, Guozhen Yang, Mengfei Huang
Category(s): Chemicals, Engineering, Material science, Nanotechnology
Ultra-Stable Printing using Aqueous Complex Coacervates
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Published: 11/5/2024   |   Inventor(s): Jessica Schiffman, Sarah Perry, Xiangxi Meng
Category(s): Material science, Nanotechnology, Chemicals, Engineering
Vinyl-Comonomer Additive for Radically Activated Dynamic Phenomena
 This invention demonstrates the synthesis of cyclic allyl sulfide small molecule that incorporates into acrylates and styrenic polymer and fosters robust reprocess-ability through radically initiated scission and extension. 
Published: 11/29/2024   |   Inventor(s): Reika Katsumata, Autumn Mineo
Category(s): Chemicals, Engineering, Material science, Physical Science, Research tools
Stable water-in-oil antimicrobial concentrate
 This invention provides a novel and straightforward antimicrobial concentrate that takes advantage of the highly effective antimicrobial property of the acidified water-in-oil emulsions. This concentrate can be easily introduced to the processing equipment during oil cleaning procedures.                                           
Published: 11/29/2024   |   Inventor(s): Lynne Mclandsborough, Shihyu Chuang
Category(s): Food technology & plant science, Material science, Chemicals
Triazole-rich deoxybenzoin-containing polymers as halogen- and phosphorous-free flame retardants
 The invention takes advantage of alkyne-azole chemistry to produce impressive non-toxic and safe flame-retardant polymers and additives that can be integrated into industrial processes. 
Published: 11/29/2024   |   Inventor(s): Todd Emrick, Krishnamurthy Munusamy
Category(s): Chemicals, Engineering, Material science
Deoxybenzoin-based Anti-flammable Polymers and Cured Epoxy Resins
This invention provides novel, deoxybenzoin-based anti-flammable polymers and cured epoxy resins for a variety of end-use applications.
Published: 7/29/2024   |   Inventor(s): Todd Emrick, E. Bryan Coughlin, Bon-Cheol Ku, Thangamani Ranganathan, Michael Beaulieu, Richard Farris
Category(s): Chemicals, Environmental, Material science, Physical Science
Novel Zwitterionic Materials
This invention provides novel ammonium and sulfonium sulfonate zwitterions and polymers derived therefrom for a variety of end-use applications.
Published: 8/10/2023   |   Inventor(s): Marcel Brown, Todd Emrick
Category(s): Chemicals, Material science, Physical Science
Novel Ferroptosis Inducing Compounds as Anti-cancer Agents
Ferroptosis is a well-defined cell death mechanism distinct from other regulated cell death phenotypes such as apoptosis, necrosis and autophagy. This invention provides novel ferroptosis inducer compounds that represent a new class of highly specific chemotherapeutic agents.
Published: 8/10/2023   |   Inventor(s): Rachid Skouta, Thomas Dawson, Rohit Bhadoria
Category(s): Chemicals, Healthcare, Life Sciences, Research tools, Therapeutics & prevention
Anti-flammable Compounds and Adhesive Materials
This invention provides new chemical compositions and methods for the preparation of adhesive materials with low flammability. The low flammability is due to newly invented organic/polymeric components used in the adhesive formulation, rather than through the addition of a conventional anti-flammable additives such as halogenated organic molecules or phosphorous-containing structures.
Published: 8/10/2023   |   Inventor(s): Todd Emrick, Justin Timmons, Megan Szyndler
Category(s): Chemicals, Environmental, Material science, Physical Science
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