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Chen X, Li C, Ding Y, Li Y, Li J, Sun L, Wei J, Wei X, Wang H, Zhang K, Pan L, Li Y. Fully Bio-Based and Supertough PLA Blends via a Novel Interlocking Strategy Combining Strong Dipolar Interactions and Stereocomplexation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangjian Chen
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Chuanxi Li
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Yingli Ding
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Yang Li
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Jinshan Li
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Liming Sun
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Jie Wei
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Xiaohui Wei
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Hao Wang
- State Key Laboratory of Heavy Oil Processing and the Key Laboratory of Catalysis of CNPC, China University of Petroleum, Beijing 102249, China
| | - Kunyu Zhang
- Advanced Materials Research Center, Petrochemical Research Institute, Petro China Company Limited, Beijing 102206, China
| | - Li Pan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Yuesheng Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
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Morelly SL, Palmese L, Watanabe H, Alvarez NJ. Effect of Finite Extensibility on Nonlinear Extensional Rheology of Polymer Melts. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02319] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Samantha L. Morelly
- Chemical and Biological Engineering, Drexel University, 3141 Chestnut St., Philadelphia, Pennsylvania 19104, United States
| | - Luisa Palmese
- Chemical and Biological Engineering, Drexel University, 3141 Chestnut St., Philadelphia, Pennsylvania 19104, United States
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan 611-0011
| | - Nicolas J. Alvarez
- Chemical and Biological Engineering, Drexel University, 3141 Chestnut St., Philadelphia, Pennsylvania 19104, United States
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Shahid T, Huang Q, Oosterlinck F, Clasen C, van Ruymbeke E. Dynamic dilution exponent in monodisperse entangled polymer solutions. SOFT MATTER 2016; 13:269-282. [PMID: 27546279 DOI: 10.1039/c6sm01083k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We study and model the linear viscoelastic properties of several entangled semi-dilute and concentrated solutions of linear chains of different molar masses and at different concentrations dissolved in their oligomers. We discuss the dilution effect of the oligomers on the entangled long chains. In particular, we investigate the influence of both concentration and molar mass on the value of the effective dynamic dilution exponent determined from the level of the storage plateau at low and intermediate frequencies. We show that the experimental results can be quantitatively explained by considering the tension re-equilibration process along the chains, in agreement with van Ruymbeke et al. (Macromol., 2014), i.e. by considering that the real dilution exponent α is always equal to 1, while larger values of the dilution exponent (1 < α < 1.3) found experimentally are attributed to the enhanced relaxation of the long chain extremities. Then we discuss the influence of the polymer concentration on the terminal relaxation time of the solutions and how this can be modelled by the enhanced contour length fluctuation process (CR-CLF). We point out that this larger dilution effect is not only a function of concentration but also depends on the molar mass of the chains. While the proposed approach successfully explains the viscoelastic properties of a large number of semi-dilute solutions of polymers in their own oligomers, important discrepancies are found for semi-dilute entangled polymers in small-molecule theta or good solvents. Possible explanations for the differences between these sample sets are proposed, based on the comparison of their viscoelastic behavior.
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Affiliation(s)
- T Shahid
- Department of Chemical Engineering, KU Leuven, 3001 Heverlee, Belgium and Bio and Soft Matter, Institute of Condensed Matter and Nano-science (IMCN), Universite Catholique de Louvain, 1348 Louvain-La-Neuve, Belgium.
| | - Q Huang
- Department of Chemical and Biochemical Engineering, The Danish Polymer Centre, 2800 Kgs. Lyngby, Denmark
| | - F Oosterlinck
- Material Science Center, DSM Research Geleen, The Netherlands
| | - C Clasen
- Department of Chemical Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - E van Ruymbeke
- Bio and Soft Matter, Institute of Condensed Matter and Nano-science (IMCN), Universite Catholique de Louvain, 1348 Louvain-La-Neuve, Belgium.
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Matsumiya Y, Watanabe H. Nonlinear Stress Relaxation of Miscible Polyisoprene/Poly( p- tert-butylstyrene) Blends in Pseudomonodisperse State. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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