Molecular Rheology of Comb Polymer Melts. 1. Linear Viscoelastic Response
We present experiments and theory on the melt dynamics of monodisperse entangled polymers of comb-shaped architecture. Frequency-dependent rheological data on a series of comb polymers are in good agreement with a tube-model theory that combines star polymer melt behavior at high frequency with modi...
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| Veröffentlicht in: | Macromolecules 2001-09, Vol.34 (20), p.7025-7033 |
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| container_end_page | 7033 |
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| container_issue | 20 |
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| container_title | Macromolecules |
| container_volume | 34 |
| creator | Daniels, D. R McLeish, T. C. B Crosby, B. J Young, R. N Fernyhough, C. M |
| description | We present experiments and theory on the melt dynamics of monodisperse entangled polymers of comb-shaped architecture. Frequency-dependent rheological data on a series of comb polymers are in good agreement with a tube-model theory that combines star polymer melt behavior at high frequency with modified linear polymer reptation behavior at low frequencies. Taking into account mild polydispersity and by incorporating the high-frequency Rouse modes, we are able to model quantitatively the entire frequency range. Qualitatively distinct dynamical features of the comb architecture are compared to those of the simpler star and H-topologies. |
| doi_str_mv | 10.1021/ma010712p |
| format | Article |
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| language | eng |
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| source | American Chemical Society Journals |
| subjects | Applied sciences Exact sciences and technology Organic polymers Physicochemistry of polymers Properties and characterization Rheology and viscoelasticity |
| title | Molecular Rheology of Comb Polymer Melts. 1. Linear Viscoelastic Response |
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