University of Illinois

University of Michigan

Wisconsin Alumni Research Foundation

Other

University of California

Northwestern University

UChicago Argonne, LLC

Jeffrey S Moore

Nancy R Sottos

Scott R White

Larry James Markoski

David James Beebe

Mary M Caruso

David C Martin

Benjamin J Blaiszik

Hefei Dong

Ian D Robertson

Kenneth A Walker

Joseph W Lyding

Eric N Brown

Nagarjuna Gavvalapalli

Susan A Odom

Khalil Amine

Piyush R Thakre

Philippe H Geubelle

Michael R Kessler

Katherine J Stawiasz

Kevin Jerome Schwarz

Justine E Paul

Stephen J Pety

Aaron D Finke

Aaron C Jackson

Aaron P Esser-Kahn

Joaquin Rodriguez-Lopez

Gary E Spilman

King C Li

Jason F Patrick

Suresh R Sriram

Bin Zhao

Jennifer Ann Lewis

Paul Vannest Braun

Michael Christopher Jewett

Sean Emerson Doris

Brett Anthony Helms

Ali Abouimrane

Jason Michael Kamphaus

Gerald O Wilson

Peter David Frischmann

Wenle Li

David T Eddington

Brett Krull

Jaisree Moorthy

Christopher C Matthews

Mostafa Yourdkhani

Ashleigh L Ward

Marta B Baginska

Etienne Chénard

Christian L Mangun

Kathleen S Toohey

Robin Hui Liu

Mei Shen

Evan M Lloyd

Timothy Lichtenstein

Jia En Aw

D Scott Thompson

Pamidighantam Bharathi

Hyuk-Jeen Suh

Ryan Gergely

Larry J Mar Koski

Benjamin A Suslick

Joongoo Lee

Windy Ann Santa Cruz

Kenneth E Schwieter

Qiong Wu

Yun-Sheng Chen

Gun Kim

Mayank Garg

Jia E Aw

David A Delafuente

Joshua A Ritchey

James W Henderson

Christopher Britt

Stephanie L Potisek

Elena Montoto

Douglas A Davis

Adam M Feinberg

Jingshu Hui

Joseph D Rule

Christopher L Plantz

Maxwell J Robb

Hector Lopez-Hernandez

Kevin Cheng

The present disclosure provides a novel method of 3D printing using frontal polymerization chemistry. This method enables the printing of tough, high quality thermosets in a short time with the option of adding fiber reinforcement. As such, it facilitates fabrication of mechanically robust 3D-printed devices and structures.

3D printing of thermoset polymers and composites

Provided herein are compositions and methods for mechanochemical dynamic therapy.

Mechanochemical dynamic for focal cancer treatment

Provided herein are compositions and methods for remotely and non-invasively subjecting targeted biological structures with light emissions or chromogenic changes.

High-intensity focused ultrasound-induced mechanochemical transduction in synthetic elastomers

Disclosed are methods, systems, components, and compositions for synthesis of sequence defined polymers. The methods, systems, components, and compositions may be utilized for incorporating novel substrates that include non-standard amino acid monomers and non-amino acid monomers into sequence defined polymers. As disclosed herein, the novel substrates may be utilized for acylation of tRNA via flexizyme catalyzed reactions. The tRNAs thus acylated with the novel substrates may be utilized in synthesis platforms for incorporating the novel substrates into a sequence defined polymer.

Expanding the chemical substrates for genetic code reprogramming

A frontally polymerized polymeric body includes, according to a first embodiment, a deformable polymer comprising polydicyclopentadiene (pDCPD) and/or poly(5-ethylidene-2-norbornene) (pENB), where the deformable polymer has a fracture strain of at least about 0.5 mm mm. According to a second embodiment, the frontally polymerized polymeric body includes a first polymer comprising pDCPD and/or pENB, and a second polymer adjacent to the first polymer also comprising the pDCPD and/or the pENB. The second polymer is more or less deformable than the first polymer. Thus, the frontally polymerized polymeric body exhibits spatially varying mechanical and/or other properties.

Frontally polymerized polymeric body and method of producing a polymeric body having spatially varying properties

A method of light-promoted frontal ring-opening metathesis polymerization includes providing a monomer solution including dicyclopentadiene, a ruthenium-based catalyst and a phosphite inhibitor, and exposing the monomer solution to ultraviolet light having a wavelength in a range from 315 nm to 400 nm, thereby initiating an exothermic polymerization reaction and generating a self-propagating polymerization front. The polymerization front moves through the monomer solution and polymerizes the dicyclopentadiene.

Method of light-promoted frontal ring-opening metathesis polymerization

A method of forming a void, channel and/or vascular network in a polymeric matrix comprises providing a pre-vascularized structure that includes a matrix material and a sacrificial material embedded in the matrix material in a predetermined pattern, where the matrix material comprises a monomer and the sacrificial material comprises a polymer. A region of the matrix material is activated to initiate an exothermic polymerization reaction and generate a self-propagating polymerization front. As the polymerization front propagates through the matrix material and polymerizes the monomer, heat from the exothermic reaction simultaneously degrades the sacrificial material into a gas-phase and/or liquid-phase byproduct. Thus, one or more voids or channels having the predetermined pattern are rapidly formed in the matrix material.

Method of forming a void, channel, and/or vascular network in a polymeric matrix

Intermittent energy sources, including solar and wind, require scalable, low-cost, multi-hour energy storage solutions to be effectively incorporated into the grid. Redox-flow batteries offer a solution, but suffer from rapid capacity fade and low Coulombic efficiency due to the high permeability of redox-active species across the battery's membrane. Here we show that active-species crossover can be arrested by scaling the membrane's pore size to molecular dimensions and in turn increasing the size of the active material to be above the membrane's pore-size exclusion limit. When oligomeric redox-active organic molecules were paired with microporous polymer membranes, the rate of active-material crossover was either completely blocked or slowed more than 9,000-fold compared to traditional separators at minimal cost to ionic conductivity. In the case of the latter, this corresponds to an absolute rate of ROM crossover of less than 3 &#x3bc;mol cmday(for a 1.0 M concentration gradient), which exceeds performance targets recently set forth by the battery industry. This strategy was generalizable to both high and low-potential ROMs in a variety of electrolytes, highlighting the importance of macromolecular design in implementing next-generation redox-flow batteries.

Redox-flow batteries employing oligomeric organic active materials and size-selective microporous polymer membranes

A partially degradable polymeric fiber includes a thermally degradable polymeric core and a coating surrounding at least a portion of the core. The thermally degradable polymeric core includes a polymeric matrix including a poly(hydroxy-alkanoate), and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the core polymeric matrix. The concentration of the metal in the polymeric matrix is at least 0.1 wt %. The partially degradable polymeric fiber may be used to form a microvascular system containing one or more microfluidic channels.

Partially degradable fibers and microvascular materials formed from the fibers

The present disclosure provides a composition of matter comprising purified cyclic poly(phthalaldehyde) (cPPA) and a plasticizer. The composition enables thermal processing and molding in bulk quantities, and is designed to degrade when contacted by an acid or exposed to a high enough temperature. Photodegradable cPPA containing a photooxidant is disclosed. Methods of making and recycling the composition of matter are also provided.

Bulk transient materials made of cyclic poly(phthalaldehyde)

A microvascular system includes a solid polymeric matrix and a woven structure in the matrix. The woven structure includes a plurality of fibers, and a plurality of microfluidic channels, where at least a portion of the microfluidic channels are interconnected. The microvascular system may be made by forming a composite that includes a solid polymeric matrix and a plurality of sacrificial fibers in the matrix, heating the composite to a temperature of from 100 to 250&#xb0; C., maintaining the composite at a temperature of from 100 to 250&#xb0; C. for a time sufficient to form degradants from the sacrificial fibers, and removing the degradants from the composite. The sacrificial fibers may include a polymeric fiber matrix including a poly(hydroxyalkanoate) and a metal selected from the group consisting of an alkali earth metal and a transition metal, in the fiber matrix, where the concentration of the metal in the fiber matrix is at least 0.1 wt %.

Thermally degradable polymeric fibers

Polydicyclopentadiene (PDCPD) is a polymer of growing importance in industrial applications. Frontal ring-opening metathesis polymerization (FROMP) offers a means to rapidly cure PDCPD with minimal input energy owing to a propagating reaction wave sustained by the exothermic polymerization. The disclosure provides methods for the rapid fabrication of fiber reinforced composites that is less restrictive and more energy efficient than conventional methods.

Frontal polymerization for fiber-reinforced composites

The invention provides a redox flow battery comprising a microporous or nanoporous size-exclusion membrane, wherein one cell of the battery contains a redox-active colloidal particle dispersed in a non-aqueous solvent. The redox flow battery provides enhanced ionic conductivity across the electrolyte separator and reduced redox-active species crossover, thereby improving the performance and enabling widespread utilization of the battery. Redox active colloidal particles (RACs) were prepared, analyzed, and were found to be highly effective redox species for use in redox flow batteries.

Redox active colloidal particles for flow batteries

An autonomic self-indicating material is provided, the material comprising a polymer composition or a composite material embedded with a microcapsule or a vascular structure comprising an aggregation-induced emission (AIE) luminogen. Upon mechanical damage to the material, the luminogen is released and aggregates, leading to fluorescence.

Fluorescence detection of mechanical damage

Growing community of inventors

Savoy, IL, United States of America

Jeffrey S Moore