1
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Xu L, Jiang Y, Wang D, Yin B. The cavitation development of poly(4‐methyl‐1‐pentene) casting films studied by
in situ
small angle X‐ray scattering. J Appl Polym Sci 2021. [DOI: 10.1002/app.50209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Liyang Xu
- Liangjiang International College Chongqing University of Technology Chongqing China
| | - Yuanping Jiang
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science East China University of Technology Nanchang China
| | - Dezheng Wang
- Chongqing Institute of Engineering Chongqing China
| | - Bo Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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2
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Chen P, Zhao J, Lin Y, Chang J, Meng L, Wang D, Chen W, Chen L, Li L. In situ characterization of strain-induced crystallization of natural rubber by synchrotron radiation wide-angle X-ray diffraction: construction of a crystal network at low temperatures. SOFT MATTER 2019; 15:734-743. [PMID: 30633295 DOI: 10.1039/c8sm02126k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Strain-induced crystallization (SIC) of natural rubber (NR) at descending temperatures as low as -60 °C is systematically investigated by in situ synchrotron radiation wide-angle X-ray diffraction (SR-WAXD) measurement. The detailed structural evolution of NR during SIC is studied in the strain-temperature space, where up to four regions are defined depending on the SR-WAXD results. In region I, the molecular chains begin to be oriented under tensile loading. The onset of crystallization happens in the very beginning of region II, and the NR crystal acts as a new physical cross-linking point to form a crystal network, namely the series model. The further increment of crystallinity (> ca. 8%) leads to the transition of the crystal network from the series model to the parallel model in region III. The crystal network is finally accomplished in region IV, where the crystallinity remains almost constant. Interestingly, regions III and IV exist only in the intermediate-temperature zone II (-40 °C to -10 °C), which are missing in zones I (-10 °C to 25 °C) and III (-60 °C to -40 °C). This suggests that sufficient crystallinity (χII-III > ca. 8%) is required to form the parallel model. The new crystal network provides a deep understanding of SIC of NR considering the microscopic features, i.e. oriented amorphous component, the onset of crystallization and crystallinity evolution and its correlation with the macroscopic stress-strain curve.
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Affiliation(s)
- Pinzhang Chen
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Jingyun Zhao
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Yuanfei Lin
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China. and South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640, China
| | - Jiarui Chang
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Lingpu Meng
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Daoliang Wang
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Wei Chen
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Liang Chen
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
| | - Liangbin Li
- National Synchrotron Radiation Lab and CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China.
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3
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Wei Z, Lun R, Lou X, Tian F, Lin J, Li X, Yu J, Li F. Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating. RSC Adv 2014. [DOI: 10.1039/c4ra12117a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The structural evolution of biodegradable poly(butylene succinate-co-terephthalate) copolymer was investigated during the uniaxial stretching and following heating processes via in situ small-angle X-ray scattering.
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Affiliation(s)
- Zhenzhen Wei
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Ruixin Lun
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Xueqin Lou
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Feng Tian
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Jinyou Lin
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Xiuhong Li
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Jianyong Yu
- Modern Textile Institute
- Donghua University
- Shanghai 200051, China
| | - Faxue Li
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
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4
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2D WAXS/SAXS study on isotactic propylene-1-butylene random copolymer subjected to uniaxial stretching: The influence of temperature. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.12.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Cavallo D, Gardella L, Alfonso GC, Mileva D, Androsch R. Effect of comonomer partitioning on the kinetics of mesophase formation in random copolymers of propene and higher α-olefins. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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6
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Mao Y, Li X, Burger C, Hsiao BS, Mehta AK, Tsou AH. Structure Development during Stretching and Heating of Isotactic Propylene–1-Butylene Random Copolymer: From Unit Cells to Lamellae. Macromolecules 2012. [DOI: 10.1021/ma3015504] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yimin Mao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400,
United States
| | - Xiaowei Li
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400,
United States
| | - Christian Burger
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400,
United States
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400,
United States
| | - Aspy K. Mehta
- ExxonMobil Chemical Company, 5200 Bayway Drive, Baytown,
Texas 77520, United States
| | - Andy H. Tsou
- ExxonMobil Research and Engineering Company, Annandale,
New Jersey 08801, United States
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7
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Mileva D, Androsch R. Effect of co-unit type in random propylene copolymers on the kinetics of mesophase formation and crystallization. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-011-2576-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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8
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Zhang X, Schneider K, Liu G, Chen J, Brüning K, Wang D, Stamm M. Deformation-mediated superstructures and cavitation of poly (l-lactide): In-situ small-angle X-ray scattering study. POLYMER 2012. [DOI: 10.1016/j.polymer.2011.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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9
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Luo F, Wang K, Wang J, Deng H, Zhang Q, Chen F, Fu Q, Na B. Tailoring toughness of injection molded bar of polypropylene random copolymer through processing melt temperature. POLYM INT 2011. [DOI: 10.1002/pi.3135] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Ruiz-Orta C, Fernandez-Blazquez J, Pereira E, Alamo R. Time-resolved FTIR spectroscopic study of the evolution of helical structure during isothermal crystallization of propylene 1-hexene copolymers. Identification of regularity bands associated with the trigonal polymorph. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.04.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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