Ethan C. Quinn
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View article: Mono‐Materials Created by Engineering a Continuum of P3HB Stereomicrostructures in a One‐Step Catalytic Process
Mono‐Materials Created by Engineering a Continuum of P3HB Stereomicrostructures in a One‐Step Catalytic Process Open
Multi‐material products that combine multiple complementary polymers can create products with desired performance but present challenges to end‐of‐life (EoL) management. The emerging mono‐material product design based on a single polymer t…
View article: Chemically Recyclable and Tunable Polyolefin‐Like Multiblock Copolymer Adhesives
Chemically Recyclable and Tunable Polyolefin‐Like Multiblock Copolymer Adhesives Open
Adhesives are important in creating multilayer products, such as in packaging and construction. Most current hot‐melt adhesives such as poly(ethylene‐co‐vinyl acetate) (EVA) and polyurethanes lack chemical recyclability and do not easily d…
View article: Chemically Recyclable and Tunable Polyolefin‐Like Multiblock Copolymer Adhesives
Chemically Recyclable and Tunable Polyolefin‐Like Multiblock Copolymer Adhesives Open
Adhesives are important in creating multilayer products, such as in packaging and construction. Most current hot‐melt adhesives such as poly(ethylene‐co‐vinyl acetate) (EVA) and polyurethanes lack chemical recyclability and do not easily d…
View article: Stereomicrostructure-regulated biodegradable adhesives
Stereomicrostructure-regulated biodegradable adhesives Open
Commercial adhesives are petroleum-based thermoset networks or nonbiodegradable thermoplastic hot melts, making them ideal targets for replacement by biodegradable alternatives. Poly(3-hydroxybutyrate) (P3HB) is a biorenewable and biodegra…
View article: Stereoregular cyclic poly(3-hydroxybutyrate) enabled by catalyst-controlled tacticity and topology
Stereoregular cyclic poly(3-hydroxybutyrate) enabled by catalyst-controlled tacticity and topology Open
Metal-based catalysts with large ionic radii and longer and more ionic metal–polymer bonds can control both stereoselectivity of polymerization and chain cyclization leading to stereoregular cyclic P3HB.
View article: Synergistic engineering of poly(3-hydroxybutyrate) architecture and stereomicrostructure achieves enhanced material properties
Synergistic engineering of poly(3-hydroxybutyrate) architecture and stereomicrostructure achieves enhanced material properties Open
Synergistic engineering of P3HB stereomicrostructure and architecture effectively tunes its thermal, mechanical, rheological and barrier properties without altering its chemical composition, offering an effective strategy to design mono-ma…
View article: Regulating the stereomicrostructure, circularity and functionality of synthetic PHAs
Regulating the stereomicrostructure, circularity and functionality of synthetic PHAs Open
Synthetic poly(3-hydroxyalkanoate)s are empowered by catalyst-controlled stereomicrostructures, monomer-designed melt-processability and chemical recyclability, and pendant-group-regulated functionalities.
View article: Predicting homopolymer and copolymer solubility through machine learning
Predicting homopolymer and copolymer solubility through machine learning Open
In this work, we report the development of multiple new machine learning (ML) models to accurately predict homopolymer/copolymer solubility over a diverse set of polymers & solvents, using explainable AI to provide polymer design recommend…
View article: Redesigned Nylon 6 Variants with Enhanced Recyclability, Ductility, and Transparency
Redesigned Nylon 6 Variants with Enhanced Recyclability, Ductility, and Transparency Open
Geminal ( gem −) disubstitution in heterocyclic monomers is an effective strategy to enhance polymer chemical recyclability by lowering their ceiling temperatures. However, the effects of specific substitution patterns on the monomer's rea…
View article: Redesigned Nylon 6 Variants with Enhanced Recyclability, Ductility, and Transparency
Redesigned Nylon 6 Variants with Enhanced Recyclability, Ductility, and Transparency Open
Geminal ( gem −) disubstitution in heterocyclic monomers is an effective strategy to enhance polymer chemical recyclability by lowering their ceiling temperatures. However, the effects of specific substitution patterns on the monomer's rea…
View article: Toughening Brittle Bio‐P3HB with Synthetic P3HB of Engineered Stereomicrostructures
Toughening Brittle Bio‐P3HB with Synthetic P3HB of Engineered Stereomicrostructures Open
Poly(3‐hydroxybutyrate) (P3HB), a biologically produced, biodegradable natural polyester, exhibits excellent thermal and barrier properties but suffers from mechanical brittleness, largely limiting its applications. Here we report a mono‐m…
View article: Toughening Brittle Bio‐P3HB with Synthetic P3HB of Engineered Stereomicrostructures
Toughening Brittle Bio‐P3HB with Synthetic P3HB of Engineered Stereomicrostructures Open
Poly(3‐hydroxybutyrate) (P3HB), a biologically produced, biodegradable natural polyester, exhibits excellent thermal and barrier properties but suffers from mechanical brittleness, largely limiting its applications. Here we report a mono‐m…
View article: All-Polyhydroxyalkanoate Triblock Copolymers via a Stereoselective-Chemocatalytic Route
All-Polyhydroxyalkanoate Triblock Copolymers via a Stereoselective-Chemocatalytic Route Open
Biodegradable polyhydroxyalkanoate (PHA) homopolymers and statistical copolymers are ubiquitous in microbially produced PHAs, but the step-growth polycondensation mechanism the biosynthesis operates on presents a challenge to access well-d…
View article: Installing Controlled Stereo-Defects Yields Semicrystalline and Biodegradable Poly(3-Hydroxybutyrate) with High Toughness and Optical Clarity
Installing Controlled Stereo-Defects Yields Semicrystalline and Biodegradable Poly(3-Hydroxybutyrate) with High Toughness and Optical Clarity Open
Stereo-defects present in stereo-regular polymers often diminish thermal and mechanical properties, and hence suppressing or eliminating them is a major aspirational goal for achieving polymers with optimal or enhanced properties. Here, we…