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Tashiro K, Yamamoto H. Structural Evolution Mechanism of Crystalline Polymers in the Isothermal Melt-Crystallization Process: A Proposition Based on Simultaneous WAXD/SAXS/FTIR Measurements. Polymers (Basel) 2019; 11:polym11081316. [PMID: 31390825 PMCID: PMC6723153 DOI: 10.3390/polym11081316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 11/16/2022] Open
Abstract
Time-resolved simultaneous measurements of wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) (and FTIR spectra) were performed for various kinds of crystalline polymers in isothermal melt-crystallization processes, from which the common features of the structural evolution process as well as the different behaviors intrinsic to the individual polymer species were extracted. The polymers targeted here were polyethylene, isotactic polypropylene, polyoxymethylene, aliphatic nylon, vinylidene fluoride copolymer, trans-polyisoprene, and poly(alkylene terephthalate). A universal concept of the microscopically viewed structural evolution process in isothermal crystallization may be described as follows: (i) the small domains composed of locally regular but more or less disordered helical chain segments are created in the melt (this important information was obtained by the IR spectral data analysis); (ii) these domains grow larger as the length and number of more regular helical segments increase with time; (iii) the correlation among the domains becomes stronger and they approach each other; and (iv) they merge into the stacked lamellar structure consisting of the regularly arranged crystalline lattices. The inner structure of the domains is different depending on the polymer species, as known from the IR spectral data.
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Affiliation(s)
- Kohji Tashiro
- Department of Future Industry-Oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan.
| | - Hiroko Yamamoto
- Department of Future Industry-Oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
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Kummara S, Tashiro K. Isotope effect on the structural evolution process in the isothermal crystallization phenomenon of polyoxymethylene. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tashiro K, Yamamoto H, Yoshioka T, Ninh TH, Tasaki M, Shimada S, Nakatani T, Iwamoto H, Ohta N, Masunaga H. Hierarchical Structural Change in the Stress-Induced Phase Transition of Poly(tetramethylene terephthalate) As Studied by the Simultaneous Measurement of FTIR Spectra and 2D Synchrotron Undulator WAXD/SAXS Data. Macromolecules 2014. [DOI: 10.1021/ma402041r] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kohji Tashiro
- Department
of Future Industry-oriented Basic Science and Materials, Graduate
School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Hiroko Yamamoto
- Department
of Future Industry-oriented Basic Science and Materials, Graduate
School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Taiyo Yoshioka
- Department
of Future Industry-oriented Basic Science and Materials, Graduate
School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Tran Hai Ninh
- Department
of Future Industry-oriented Basic Science and Materials, Graduate
School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Masafumi Tasaki
- Department
of Future Industry-oriented Basic Science and Materials, Graduate
School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Shigeru Shimada
- Bruker Optics Japan, 1-4-1 Arakawa Chuo-Ku, Tokyo 104-0033, Japan
| | - Takeshi Nakatani
- Bruker Optics Japan, 1-4-1 Arakawa Chuo-Ku, Tokyo 104-0033, Japan
| | - Hiroyuki Iwamoto
- Japan Synchrotron Radiation Research Institute, 1-1 Koto, Mikazuki-cho,
Sayo-gun, Hyogo 679-5198, Japan
| | - Noboru Ohta
- Japan Synchrotron Radiation Research Institute, 1-1 Koto, Mikazuki-cho,
Sayo-gun, Hyogo 679-5198, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute, 1-1 Koto, Mikazuki-cho,
Sayo-gun, Hyogo 679-5198, Japan
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Hashida T, Tashiro K, Ito K, Takata M, Sasaki S, Masunaga H. Correlation of Structure Changes in the Water-Induced Phase Transitions of Poly(ethylenimine) Viewed from Molecular, Crystal, and Higher-Order Levels As Studied by Simultaneous WAXD/SAXS/Raman Measurements. Macromolecules 2009. [DOI: 10.1021/ma9017857] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomoko Hashida
- Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Kohji Tashiro
- Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Kazuki Ito
- RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - Masaki Takata
- RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Kouto, Sayo, Hyogo 679-5198, Japan
| | - Sono Sasaki
- Japan Synchrotron Radiation Research Institute, Kouto, Sayo, Hyogo 679-5198, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute, Kouto, Sayo, Hyogo 679-5198, Japan
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TASHIRO K, REDDY KR, NISHIYAMA A, HANESAKA M, TSUJI S, HASHIDA T, WEIYU C, MASUNAGA H, SASAKI S, TAKATA M. Evolution Process of Regular Structure in Isothermal Crystallization Phenomena of Crystalline Polymers Viewed from Synchrotron Small- and Wide-Angle X-ray Scatterings and Vibrational Spectroscopy. KOBUNSHI RONBUNSHU 2009. [DOI: 10.1295/koron.66.536] [Citation(s) in RCA: 8] [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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Tashiro K, Tanaka R. Structural correlation between crystal lattice and lamellar morphology in the ferroelectric phase transition of vinylidene fluoride–trifluoroethylene copolymers as revealed by the simultaneous measurements of wide-angle and small-angle X-ray scatterings. POLYMER 2006. [DOI: 10.1016/j.polymer.2005.06.128] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Jin XY, Kim KJ, Lee HS. Grazing incidence reflection absorption Fourier transform infrared (GIRA-FTIR) spectroscopic studies on the ferroelectric behavior of poly(vinylidene fluoride–trifluoroethylene) ultrathin films. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.10.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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