Probing the Nature of Strain-Induced Crystallization in Polyisoprene Rubber by Combined Thermomechanical and In Situ X-ray Diffraction Techniques
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- Shigeyuki Toki
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Igors Sics
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Benjamin S. Hsiao
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Masatoshi Tosaka
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Sirilux Poompradub
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Yuko Ikeda
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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- Shinzo Kohjiya
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan, and Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
書誌事項
- 公開日
- 2005-07-15
- DOI
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- 10.1021/ma050465f
- 公開者
- American Chemical Society (ACS)
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説明
The nature of strain-induced crystallization in vulcanized polyisoprene rubbers was investigated by in situ synchrotron wide-angle X-ray diffraction under varying thermomechanical conditions. In particular, the methods of constrained cooling and constrained heating under constant strain were used to explore the relationships between the strain-induced crystalline network and corresponding stress. It was found that constrained cooling resulted in a large reduction of stress and a notable increase in the amount of strain-induced crystallites, while constrained heating led to an initial increase in stress and subsequent melting of strain-induced crystallites. Results indicate that strain-induced crystallization induces a new network structure, which reinforces the chemical network points. However, the sulfur bridges in the chemical network points would break down at high temperatures under high strains, despite the existence of strain-induced crystalline network.
収録刊行物
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- Macromolecules
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Macromolecules 38 (16), 7064-7073, 2005-07-15
American Chemical Society (ACS)