Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"vitrimers"”.
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Viscoelasticity of vitrimers: tunability and applications of dynamic networks
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Tunable viscoelasticity, morphology, and charge transport of dynamic covalent polymers
… dynamic behavior has led to the emergence of vitrimers that retain network integrity while exhibiting flow at elevated temperatures via associative bond exchange. Vitrimers show great potential as reprocessable and recyclable solid polymer electrolytes with tunable mechanical and transport …
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Investigating the effect of dynamic covalent bonds on the crystallization, rheology and molecular relaxation in ethylene vitrimers
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Roles of mesh size, segmental dynamic, glass transition temperature and molecular structure on penetrant diffusion in dense vitrimers
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Computational Modeling and Simulation of Viscoelastic Granular Packings
… granular systems, particularly in the context of vitrimers compaction. An analytical model is developed to investigate the evolution of chain density at the interface between different networks, resulting in a transient advection-diffusion-reaction (ADR) equation. The influence of temperature and …
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Bond exchange reactions in high temperature thermoset polymers
… bonds are referred to in the literature as vitrimers. Vitrimers have enhanced processability via topology changes within their covalent network enabled and mediated by the exchangeable bonds. Aromatic thermosetting copolyesters (ATSP) are a family of all-aromatic thermosets synthesized …
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Liquid Crystalline Elastomers as Renewable Functional Materials: From Chemistry to Application
… scale in dynamic covalent polymer systems (vitrimers). I notably demonstrate that the bond exchange reaction activation energy is a poor predictor of material flow at high temperatures, with the network elastic modulus and the concentration of reactive functions for the bond exchange having …
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Development of applications of liquid crystalline elastomers from Materials to Applications
… of LCE utilised the bond-exchange behaviour in vitrimers to produce exchangeable LCE (xLCE), which enabled post-polymerisation alignment, welding and recycling of LCE. Stemming from such unique network structures and a wide range of synthetic chemistries, LCEs have a variety of remarkable …
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Advances in the Synthesis and Application of Dynamic Covalent Polymer Networks
To combat the rising concerns related to plastic wastes, fabricating sustainable and renewable plastics is an important strategy. Thermoplastics (linear polymers) and Thermosets (crosslinked polymer networks) are two main categories of plastic materials. Thermosets have excellent chemical …