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Costanzo S, Ianniello V, Pasquino R, Grizzuti N, Ianniruberto G, Marrucci G. Strain Hardening of Unentangled Polystyrene Solutions in Fast Shear Flows. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01499] [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)
- Salvatore Costanzo
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
| | - Vincenzo Ianniello
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
| | - Rossana Pasquino
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
| | - Nino Grizzuti
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
| | - Giovanni Ianniruberto
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
| | - Giuseppe Marrucci
- Department of Chemical, Materials, and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale Tecchio 80, Naples80125, Italy
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Uetani K, Uto T. Off-axis photoelasticity by anisotropic molecular deformation of uniaxially aligned cellulose nanofiber films. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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3
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Hamza AA, Sokkar TZN, El-Bakary MA, Azzam AAS. A quantitative study on using digital photoelasticity for characterising the effect of the stretching speed on the necking phenomenon. JOURNAL OF POLYMER ENGINEERING 2020. [DOI: 10.1515/polyeng-2020-0163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe digital photoelastic technique is used to characterise the necking behaviour of isotactic polypropylene (iPP) fibres. The effect of stretching rate on necking initiation is studied. The birth of necking is observed using photoelastic patterns of the stretched fibres to understand how the localised difference between the principle stresses grows to form a necking region. Finally, the formation of multiple necking regions is characterised photoelastically. These multiple necks are initiated using the same formation mechanism and conditions as if there is only a single necking region. It was evident that, fast stretching causes faster arrangement of molecular chains and hence decreases the time required for necking initiation. Recommendations are suggested for optimum mechanical processing conditions of iPP fibres to avoid failure by necking. Photoelastic patterns are given for illustration.
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Affiliation(s)
- Ahmed A. Hamza
- Physics Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
| | - Taha Z. N. Sokkar
- Physics Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
| | | | - Amira A. S. Azzam
- Physics Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
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Wu S, Liu S, Zhang Z, Chen Q. Dynamics of Telechelic Ionomers with Distribution of Number of Ionic Stickers at Chain Ends. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b01776] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shilong Wu
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
- University of
Chinese Academy of Sciences, 19A Yuquan Rd., Beijing 100049, P. R. China
| | - Shuang Liu
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
| | - Zhijie Zhang
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
| | - Quan Chen
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
- University of
Chinese Academy of Sciences, 19A Yuquan Rd., Beijing 100049, P. R. China
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Affiliation(s)
- Ryoyu Hifumi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259-G1-9, Midori-ku, Yokohama 226-8502, Japan
- JSR Corporation, Kawajiri-cho 100, Yokkaichi, Mie 510-8552, Japan
| | - Ikuyoshi Tomita
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259-G1-9, Midori-ku, Yokohama 226-8502, Japan
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Matsumiya Y, Rakkapao N, Watanabe H. Entanglement Length in Miscible Blends of cis-Polyisoprene and Poly(p-tert-butylstyrene). Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01866] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yumi Matsumiya
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Natthida Rakkapao
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Faculty
of Science and Industrial Technology, Prince of Songkla University, Suratthani 84000, Thailand
| | - Hiroshi Watanabe
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Eguchi Y, Unsal E, Cakmak M. Critical Phenomenon During Drying of Semiaromatic, Transparent and Soluble Polyimide Cast Films: Real-Time Observation of Birefringence and Other Integrated Parameters. Macromolecules 2013. [DOI: 10.1021/ma401209j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuji Eguchi
- Institute of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, United States
| | - Emre Unsal
- Institute of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, United States
| | - Miko Cakmak
- Institute of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, United States
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Nakahara A, Satoh K, Saito H, Kamigaito M. Intramolecular friedel-crafts cyclization and subsequent hydrogenation of styrene-isoprene random copolymers prepared by anionic polymerization for thermally-resistant and optical applications. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25894] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Nobukawa S, Urakawa O, Shikata T, Inoue T. Cooperative Dynamics in Polystyrene and Low-Mass Molecule Mixtures. Macromolecules 2011. [DOI: 10.1021/ma201719c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shogo Nobukawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Osamu Urakawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Toshiyuki Shikata
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tadashi Inoue
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Matsumiya Y, Uno A, Watanabe H, Inoue T, Urakawa O. Dielectric and Viscoelastic Investigation of Segmental Dynamics of Polystyrene above Glass Transition Temperature: Cooperative Sequence Length and Relaxation Mode Distribution. Macromolecules 2011. [DOI: 10.1021/ma200631p] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Akiko Uno
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tadashi Inoue
- Department of Macromolecular Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Osamu Urakawa
- Department of Macromolecular Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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12
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Nobukawa S, Urakawa O, Shikata T, Inoue T. Evaluation of Nematic Interaction Parameter between Polymer Segments and Low-Mass Molecules in Mixtures. Macromolecules 2010. [DOI: 10.1021/ma100969j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shogo Nobukawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Osamu Urakawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Toshiyuki Shikata
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Tadashi Inoue
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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14
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Chen Q, Matsumiya Y, Masubuchi Y, Watanabe H, Inoue T. Component Dynamics in Polyisoprene/Poly(4-tert-butylstyrene) Miscible Blends. Macromolecules 2008. [DOI: 10.1021/ma8013417] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Quan Chen
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yuichi Masubuchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tadashi Inoue
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Ban HT, Hagihara H, Nishii K, Tsunogae Y, Nojima S, Shiono T. A new approach for controlling birefringent property of cyclic olefin copolymers. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Nemoto T, Konishi GI. Synthesis and Properties of New Organosoluble Alkoxylated Naphthalene-Based Novolacs Preparaed by Addition-Condensation of Mono- or Di-alkoxynaphthalene with Formaldehyde. Polym J 2008. [DOI: 10.1295/polymj.pj2008035] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Relationship between segmental anisotropy in polarizability and stationary ultrasonically induced birefringence in polymer solutions. J Mol Liq 2004. [DOI: 10.1016/j.molliq.2003.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Inoue T, Fujiwara K, Ryu DS, Osaki K, Fuji M, Sakurai K. Viscoelasticity and Birefringence of Low Birefringent Polyesters. Polym J 2000. [DOI: 10.1295/polymj.32.411] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mavrantzas V, Theodorou D. Atomistic simulation of the birefringence of uniaxially stretched polyethylene melts. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1089-3156(99)00027-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Affiliation(s)
- T. Inoue
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - K. Osaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Inoue T, Ryu DS, Osaki K. A Rheo-Optical Study on Polystyrene under Large Tensile Deformation around the Glass Transition Temperature. Macromolecules 1998. [DOI: 10.1021/ma970908i] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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