Rheological characterization of H-shaped poly(methyl methacrylate)s
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| 024 | 7 | 0 | |a 10.1007/s00397-015-0871-x |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00397-015-0871-x | ||
| 245 | 0 | 0 | |a Rheological characterization of H-shaped poly(methyl methacrylate)s |h [Elektronische Daten] |c [Koji Ogura, Kohei Morioka, Shu-Yao Hsu, Yoshinobu Tsujii, Manfred Wagner] |
| 520 | 3 | |a Investigation of the extensional flow behavior and development of constitutive equations for well-characterized H-shaped polymers is important both from an industrial and academic viewpoints. For H-shaped polymer systems, little is known about the extensional flow behavior at constant strain rates. We synthesized H-shaped poly(methyl methacrylate)s (PMMAs) with narrow molecular weight distributions and various ratios of the molecular weight of the backbone, M b, to that of the arm, M a, by atom transfer radical polymerization. However, 1H NMR spectroscopy showed that the resulting PMMA samples contained substantial amounts of linear and star topologies. In spite of the limited purity of the H-shaped PMMAs obtained, the rheological properties in linear viscoelasticity and uniaxial extensional flow revealed interesting results. The zero-shear viscosity of model PMMAs was well described by an exponential relation of the molecular weight. Qualitative agreement was found between the experimental linear-viscoelastic behavior and predictions of the model of McLeish et al. (Macromolecules 32: 6734-6758, 1999) for H-shaped polymers. The elongational flow behavior was also analyzed by the molecular stress function (MSF) model. Surprisingly, the strain-hardening effect for all investigated model PMMAs was weaker than that for pom-pom polystyrene polymers. | |
| 540 | |a Springer-Verlag Berlin Heidelberg, 2015 | ||
| 690 | 7 | |a H-shaped polymer |2 nationallicence | |
| 690 | 7 | |a Rheology |2 nationallicence | |
| 690 | 7 | |a Molecular stress function model |2 nationallicence | |
| 690 | 7 | |a Uniaxial extension |2 nationallicence | |
| 690 | 7 | |a Strain hardening |2 nationallicence | |
| 690 | 7 | |a Poly(methyl methacrylate) |2 nationallicence | |
| 700 | 1 | |a Ogura |D Koji |u Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd, 5-1, Sobiraki-cho, 792-8521, Niihama City, Ehime, Japan |4 aut | |
| 700 | 1 | |a Morioka |D Kohei |u Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd, 5-1, Sobiraki-cho, 792-8521, Niihama City, Ehime, Japan |4 aut | |
| 700 | 1 | |a Hsu |D Shu-Yao |u Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Tsujii |D Yoshinobu |u Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan |4 aut | |
| 700 | 1 | |a Wagner |D Manfred |u Chair of Polymer Engineering/Polymer Physics, Berlin Institute of Technology (TU Berlin), Fasanenstrasse 90, 10623, Berlin, Germany |4 aut | |
| 773 | 0 | |t Rheologica Acta |d Springer Berlin Heidelberg |g 54/9-10(2015-10-01), 793-804 |x 0035-4511 |q 54:9-10<793 |1 2015 |2 54 |o 397 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00397-015-0871-x |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00397-015-0871-x |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Ogura |D Koji |u Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd, 5-1, Sobiraki-cho, 792-8521, Niihama City, Ehime, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Morioka |D Kohei |u Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd, 5-1, Sobiraki-cho, 792-8521, Niihama City, Ehime, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hsu |D Shu-Yao |u Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Tsujii |D Yoshinobu |u Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Wagner |D Manfred |u Chair of Polymer Engineering/Polymer Physics, Berlin Institute of Technology (TU Berlin), Fasanenstrasse 90, 10623, Berlin, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Rheologica Acta |d Springer Berlin Heidelberg |g 54/9-10(2015-10-01), 793-804 |x 0035-4511 |q 54:9-10<793 |1 2015 |2 54 |o 397 | ||