Diblock copolymer architecture and complex viscosity
| Autor: | Chaimongkol Saengow, Jourdain H. Piette, M. A. Kanso, A. Jeffrey Giacomin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Physics::Biological Physics Quantitative Biology::Biomolecules Materials science Polymer science Rheometry Statistical and Nonlinear Physics 02 engineering and technology Polymer Orientation (graph theory) 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Viscoelasticity Quantitative Biology::Subcellular Processes Physics::Fluid Dynamics Condensed Matter::Soft Condensed Matter chemistry 0103 physical sciences Copolymer 010306 general physics 0210 nano-technology Macromolecule |
| Zdroj: | International Journal of Modern Physics B. 34:2040110 |
| ISSN: | 1793-6578 0217-9792 |
| DOI: | 10.1142/s0217979220401104 |
| Popis: | General rigid bead-rod theory [O. Hassager, J. Chem. Phys. 60, 4001 (1974)] explains polymer viscoelasticity from macromolecular orientation. By means of general rigid bead-rod theory, we relate the complex viscosity of polymeric liquids to the architecture of axisymmetric macromolecules. In this paper, we explore the complex viscosities of different axisymmetric diblock copolymer configurations. When nondimensionalized with the zero-shear viscosity, the diblock copolymer complex viscosity depends on the dimensionless frequency and the sole dimensionless architectural parameter, the macromolecular lopsidedness. In this paper, through this way, we thus compare the dimensionless relaxation time of different diblock macromolecular chains. We explore the effects of linear density, macromolecular length, and bead number ratio. |
| Databáze: | OpenAIRE |
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