The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Dynamics of Entangled H-Polymers: Theory, Rheology, and Neutron-Scattering
Abstract
We present experiments and theory on the melt dynamics of monodisperse entangled polymers of H-shaped architecture. Frequency-dependent rheological data on a series of polyisoprene H-polymers are in good agreement with a tube model theory that combines path-length fluctuation (like that of star polymer melts) at high frequency, with reptation of the self-entangled “cross-bars” at low frequencies (like that of linear polymer melts). We account explicitly for mild polydispersity. Nonlinear step-strain and transient data in shear and extension confirm the presence of a relaxation time not seen in linear response, corresponding to the curvilinear stretch of the cross-bars. This time is very sensitive to strain due to the exponential dependence of the branch-point friction constants on the effective dangling path length. Strain-induced rearrangements of the branch points are confirmed by small-angle neutron scattering (SANS) on stretched and quenched partially deuterated samples. We develop an extension of melt-scattering theory to deal with the presence of deformed tube variables to interpret the SANS data.
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Cites
Fetters, L. J., Lohse, D. J., Richter, D., Witten, T. A., & Zirkel, A. (1994) · Macromolecules · doi:10.1021/ma00095a001 · Cited by 1,999
Molecular constitutive equations for a class of branched polymers: The pom-pom polymer
McLeish, T. C. B., & Larson, R. G. (1998) · Journal of Rheology · doi:10.1122/1.550933 · Cited by 784
Self-citationThe theory of polymer solutions at intermediate concentration
Edwards, S. F. (1966) · Proceedings of the Physical Society · doi:10.1088/0370-1328/88/2/301 · Cited by 469
Reptation and contour-length fluctuations in melts of linear polymers
Milner, S. T., & McLeish, T. C. B. (1998) · Physical Review Letters · doi:10.1103/physrevlett.81.725 · Cited by 451
Self-citationParameter-Free Theory for Stress Relaxation in Star Polymer Melts
Milner, S. T., & McLeish, T. C. B. (1997) · Macromolecules · doi:10.1021/ma961559f · Cited by 420
Self-citationRheological behavior of star-shaped polymers
Fetters, L. J., Kiss, A. D., Pearson, D. S., Quack, G. F., & Vitus, F. J. (1993) · Macromolecules · doi:10.1021/ma00056a015 · Cited by 380
Two-parameter scaling for polymers in Θ solvents
Colby, R. H., & Rubinstein, M. (1990) · Macromolecules · doi:10.1021/ma00212a028 · Cited by 356
Dynamic dilution and the viscosity of star-polymer melts
Ball, R. C., & McLeish, T. C. B. (1989) · Macromolecules · doi:10.1021/ma00194a066 · Cited by 339
Self-citationDiscretized model of entangled-polymer dynamics
Rubinstein, M. (1987) · Physical Review Letters · doi:10.1103/physrevlett.59.1946 · Cited by 240
Meissner, J. (1975) · Pure and Applied Chemistry · doi:10.1351/pac197542040551 · Cited by 228
Cited by
Well-Defined, Model Long Chain Branched Polyethylene. 2. Melt Rheological Behavior
Lohse, D. J., Milner, S. T., Fetters, L. J., Xenidou, M., Hadjichristidis, N., Mendelson, R. A., García-Franco, C. A., & Lyon, M. K. (2002) · Macromolecules · doi:10.1021/ma0117559 · Cited by 360
Star-shaped and branched polylactides: Synthesis, characterization, and properties
Michalski, A., Brzezinski, M., Lapienis, G., & Biela, T. (2019) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2018.10.004 · Cited by 158
Studying the origin of strain hardening: Basic difference between extension and shear
Liu, G., Sun, H., Rangou, S., Ntetsikas, K., Avgeropoulos, A., & Wang, S.-Q. (2013) · Journal of Rheology · doi:10.1122/1.4763568 · Cited by 77
Stadler, F. J., & Karimkhani, V. (2011) · Macromolecules · doi:10.1021/ma200550c · Cited by 41
Metadata
- Authors
- McLeish, T. C. B., Allgaier, J., Bick, D. K., Bishko, G., Biswas, P., Blackwell, R., Blottière, B., Clarke, N., Gibbs, B., Groves, D. J., Hakiki, A., Heenan, R. K., Johnson, J. M., Kant, R., Read, D. J., & Young, R. N.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-09-09
- Volume
- 32
- Issue
- 20
- Pages
- 6734-6758
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2001268360
- Cited by
- 290
- References
- 27
- FWCI
- 16.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- McLeish, T. C. B., Allgaier, J., Bick, D. K., Bishko, G., Biswas, P., Blackwell, R., Blottière, B., Clarke, N., Gibbs, B., Groves, D. J., Hakiki, A., Heenan, R. K., Johnson, J. M., Kant, R., Read, D. J., & Young, R. N. (1999). Dynamics of Entangled H-Polymers: Theory, Rheology, and Neutron-Scattering. Macromolecules. https://doi.org/10.1021/ma990323j
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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