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Stimuli-responsive viscosity modifiers
Bhargavi Bhat1, Silabrata Pahari1, Joseph Sang-Il Kwon2
1Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
Advances in Colloid and Interface Science
|October 23, 2023
Summary
Stimuli responsive viscosity modifiers change flow properties with triggers like pH or temperature. These smart materials are key for advanced applications in medicine, energy, and beyond.
Area of Science:
- Materials Science
- Rheology
- Polymer Chemistry
Background:
- Stimuli responsive viscosity modifiers are crucial for smart material development.
- Applications span biomedical fields (tissue engineering, drug delivery) and industries (energy, automotive).
- Material properties and rheology are sensitive to stimuli like pH, temperature, light, and salinity.
Purpose of the Study:
- To overview structures for stimuli responsive viscosity modification.
- To analyze rheological theories and their correlation with structural changes.
- To present key mechanisms driving stimuli responsive viscosity changes.
Main Methods:
- Literature review of stimuli responsive materials and rheological theories.
- Analysis of models like molecular packing parameter, tube reptation, and stress relaxation.
- Categorization of five primary viscosity modification mechanisms.
Main Results:
- Five mechanisms identified: packing parameter modification (functional groups, dynamic bonds), mesh formation, chain conformation changes, and particle jamming.
- Exploration of structure-property relationships in stimuli responsive systems.
- Overview of recent literature employing these concepts for novel materials.
Conclusions:
- Stimuli responsive viscosity modifiers offer tunable rheological properties.
- Multi-stimuli responsive systems provide enhanced functionality for precise applications like drug delivery.
- Understanding structure-property relationships is vital for designing advanced smart materials.
Keywords:
Packing parameterRheologySelf assemblyStimuli responsive systemsSupramolecular materialsViscosity modifiersMore Related Videos
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