1
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Wang Y, Li H, Xie Y, Li X, Sun S, Jing X, Mi HY, Wang Y, Liu C, Shen C. Regulating microstructures of aerogels by controlling phase separation mechanism for improving specific surface area and energy harvesting. J Colloid Interface Sci 2024; 658:772-782. [PMID: 38154240 DOI: 10.1016/j.jcis.2023.12.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/30/2023]
Abstract
Aerogels with 3D porous structures have been attracting increasing attention among functional materials due to their advantages of being lightweight and high specific surface area. Precise control of the porous structure of aerogel is essential to improve its performance. In this work, polylactic acid (PLA) aerogels with distinctly different microstructures were fabricated by precisely controlling the phase separation behavior of the ternary solution system. Rheological and theoretical analyses have revealed that the interactions between polymer molecules, solvents and non-solvents play a crucial role in determining the nucleation and growth of poor olymer and rich polymer phases. By adjusting the non-solvent type and the solution composition, aerogels with spider network structure, bead-like connected microsphere structure, and cluster petal structure were obtained. Ideal spinodal phase separation conditions were obtained to produce aerogels with a homogeneous fiber network structure. The optimum PLA aerogel achieved an extremely porosity of 96 % and a high specific surface area of 114 m2/g, which rendered it with excellent triboelectric generation performance. Thus, this work provides fundamental insights into the precise regulation of the phase separation behavior and the structure of the aerogel, which can help boost the performance and expand the applications of PLA aerogels.
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Affiliation(s)
- Yameng Wang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Hui Li
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Yibing Xie
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Xijue Li
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Shuangjie Sun
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Jing
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou, 412007, China
| | - Hao-Yang Mi
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China; Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou, 412007, China.
| | - Yaming Wang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China.
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
| | - Changyu Shen
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Advanced Materials Processing & Mold of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China
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2
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Osaka N, Takeda N, Adachi M, Okufuji M, Osaka R. Miscibility, Hierarchical Structures, and Enhanced Mechanical Properties of Acrylic Rubber by the Formation of a Chemically and Physically Crosslinked Partially Miscible Interpenetrating Polymer Network with Poly(vinylidene fluoride). Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Noboru Osaka
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho,
Kita-ku, Okayama700-0005, Japan
| | - Natsuko Takeda
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho,
Kita-ku, Okayama700-0005, Japan
| | - Maki Adachi
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho,
Kita-ku, Okayama700-0005, Japan
| | - Misaki Okufuji
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho,
Kita-ku, Okayama700-0005, Japan
| | - Rikuto Osaka
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho,
Kita-ku, Okayama700-0005, Japan
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3
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Mohamadi M, Papila M, Garmabi H, Gohari Bajestani Z. Morphological evaluation and phase behavior of PVDF/PEO blends in the presence of graphene nanoplatelets through rheological measurements. J Appl Polym Sci 2019. [DOI: 10.1002/app.48017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mahboube Mohamadi
- Polymer Engineering Department, Faculty of EngineeringUrmia University 57561‐51818 Urmia Iran
| | - Melih Papila
- Faculty of Engineering and Natural SciencesSabanci University 34956 Istanbul Turkey
| | - Hamid Garmabi
- Department of Polymer Engineering and Color TechnologyAmirkabir University of Technology 15875‐4413 Tehran Iran
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4
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Highly accelerated crystallization kinetics of poly(ethylene oxide)/ionic liquid mixtures by phase separation: The coupling effect of hydrogen bonds breaking. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.03.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Tang X, Chen W, Li L. The Tough Journey of Polymer Crystallization: Battling with Chain Flexibility and Connectivity. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02725] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaoliang Tang
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei Chen
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liangbin Li
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
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6
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Xia T, Qin Y, Xu J, Zhou L, Chen W, Dai J. Viscoelastic phase separation and crystalline-to-amorphous phase transition in bitumen/SBS/PE blends. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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7
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Liu X, Huang M, Zhu P, Dong S, Dong X, Wang D. Shape memory property and underlying mechanism by the phase separation control of poly(ϵ-caprolactone)/poly(ether- b
-amide). POLYM INT 2018. [DOI: 10.1002/pi.5653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xinran Liu
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
- University of Chinese Academy of Sciences; Beijing P. R. China
| | - Miaoming Huang
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
| | - Ping Zhu
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
| | - Siyuan Dong
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing P. R. China
| | - Xia Dong
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
- University of Chinese Academy of Sciences; Beijing P. R. China
| | - Dujin Wang
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing P. R. China
- University of Chinese Academy of Sciences; Beijing P. R. China
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8
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Wu Y, Yao K, Nie H, He A. Confirmation on the compatibility between cis-1,4-polyisoprene and trans-1,4-polyisoprene. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.08.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Zhang R, Yan Y, Yang H, Yu X, Liu J, Zhang J, Han Y. The broken out and confinement phase separation structure evolution with the solution aggregation and relative crystallization degree in P3HT/N2200. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.059] [Citation(s) in RCA: 6] [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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10
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Staub MC, Li CY. Confined and Directed Polymer Crystallization at Curved Liquid/Liquid Interface. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700455] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mark C. Staub
- Department of Materials Science and Engineering Drexel University College of Engineering 3141 Chestnut Street Philadelphia PA 19104 USA
| | - Christopher Y. Li
- Department of Materials Science and Engineering Drexel University College of Engineering 3141 Chestnut Street Philadelphia PA 19104 USA
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11
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Liu D, Li W, Zhang N, Huang T, Yang J, Wang Y. Graphite oxide-driven miscibility in PVDF/PMMA blends: Assessment through dynamic rheology method. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Conjugated dual-phase transitions in crystalline/crystalline blend of poly(vinylidene fluoride)/poly(ethylene oxide). Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1827-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Mohamadi M, Garmabi H, Papila M. Effect of miscibility state on crystallization behavior and polymorphism in crystalline/crystalline blends of poly(vinylidene fluoride)/poly(ethylene oxide). Macromol Res 2016. [DOI: 10.1007/s13233-016-4099-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Chen W, Wu L, Chen L, Qi Z, Li L. Influence of thermal history on crystalline morphologies of isotactic polypropylene in its miscible blends with polybutene-1. J Appl Polym Sci 2015. [DOI: 10.1002/app.43282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Chen
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei China
| | - Lihui Wu
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei China
| | - Liang Chen
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei China
| | - Zeming Qi
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei China
| | - Liangbin Li
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei China
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15
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Cao Y, Wang L, Zhang K, Fang Y, Nishinari K, Phillips GO. Mapping the Complex Phase Behaviors of Aqueous Mixtures of κ-Carrageenan and Type B Gelatin. J Phys Chem B 2015; 119:9982-92. [PMID: 26147592 DOI: 10.1021/acs.jpcb.5b05002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a detailed and complete phase diagram for an aqueous mixture of oppositely charged gelling biopolymers, type B gelatin and κ-carrageenan (KC) at pH 7.0. The phase diagram is studied in the ionic strength-temperature coordinate by means of turbidity, rheological and differential scanning calorimetric measurements, and macroscopic phase compositional analysis. Seven phase regions are identified, including (I) compatible region, (II) electrostatically induced associative phase separation (EIAPS) region, (III) hydrogen bonding induced associative phase separation (HBIAPS) region, (IV) coexistence of EIAPS and HBIAPS, (V) segregative phase separation (SPS) region, (VI) coexistence of HBIAPS and SPS, and (VII) SPS trapped by gelation. The HBIAPS reported for the first time here is attributed to the extensive hydrogen bonding formation between gelatin and KC above their conformational transition temperatures, as probed by addition of urea and methylene blue as well as by 2D (1)H-(1)H NOESY NMR. NaCl is found to have dual effects on HBIAPS. The electrostatic complexation at lower ionic strength facilitates the formation of hydrogen bonds between gelatin and KC and hence the HBIAPS. It is believed that the local structural arrangement of gelatin molecules or the change in local solvent environment prior to triple helix formation during cooling enables the formation of hydrogen bonds with KC.
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Affiliation(s)
- Yiping Cao
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China
| | - Lu Wang
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China
| | - Ke Zhang
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China.,‡Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Yapeng Fang
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China.,‡Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Katsuyoshi Nishinari
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China.,‡Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Glyn O Phillips
- †Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan 430068, China
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16
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Fan J, Zhang Q, Feng J. Tuning the crystalline and mesophase structure of olefin block copolymer through self-nucleation and annealing treatments. Phys Chem Chem Phys 2015; 17:16158-69. [PMID: 26032333 DOI: 10.1039/c5cp00548e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a type of novel semi-crystalline block copolymers, the final properties of olefin block copolymers (OBCs) greatly depend on the crystalline and phase-separated structures. In the present work, we systematically investigated the influence of self-nucleation and annealing on the lamellar and mesophase-separated structure of OBCs. According to the crystalline and melting behavior after self-nucleation and annealing treatments, four different regimes can be recognized with the self-seeding temperature Ts varying from 125 to 109 °C. In regime A, only self-nucleation occurs, while it coexists with lamellar thickening in regime B. In regime C, there is only lamellar thickening behavior. The lamellar thickening induced inconsecutive lamellar crystals observed revealed that the rearrangement of the hard blocks, which are next to the soft blocks and trapped in the intermediate regime between crystalline and amorphous phases, into neighboring lamellar crystals should be the mechanism for the lamellar thickening of the OBCs. Surprisingly, no lamellar thickening occurs and a new small melting peak appears at lower temperatures in regime D. Considering the block dispersity of OBCs, the emergence of a small melting peak at lower temperatures can be attributed to the crystallization of the ethylene sequence with relatively weaker crystallization abilities, which are not able to crystallize in a standard crystalline state. Based on these findings, we gained some new understandings on lamellar thickening behavior of OBCs and established the self-nucleation and annealing process as a powerful tool for tuning the crystalline and phase-separated structures of OBCs.
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Affiliation(s)
- Jiashu Fan
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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17
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Effects of chain entanglement on liquid-liquid phase separation behavior of LCST-type polymer blends: Cloud point and decomposition rate. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1637-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Luo C, Chen W, Gao Y. Feather-like morphology of poly(methyl methacrylate)/poly(ethylene oxide) blends: The effect of cooling rate and poly(methyl methacrylate) content. J Appl Polym Sci 2014. [DOI: 10.1002/app.41705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chunyan Luo
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices; School of Materials and Chemical Engineering; Xi'an Technological University; Xi'an 710021 China
| | - Weixing Chen
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices; School of Materials and Chemical Engineering; Xi'an Technological University; Xi'an 710021 China
| | - Ying Gao
- State Key Laboratory of Polymer Physics and Chemistry, Chinese Academy of Sciences; Changchun Institute of Applied Chemistry; Changchun 130022 China
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19
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Zhang Y, Chen F, Liu W, Zhao S, Liu X, Dong X, Han CC. Rheological behavior of the epoxy/thermoplastic blends during the reaction induced phase separation. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Bhowmik D, Pomposo JA, Juranyi F, García Sakai V, Zamponi M, Arbe A, Colmenero J. Investigation of a Nanocomposite of 75 wt % Poly(methyl methacrylate) Nanoparticles with 25 wt % Poly(ethylene oxide) Linear Chains: A Quasielatic Neutron Scattering, Calorimetric, and WAXS Study. Macromolecules 2014. [DOI: 10.1021/ma500215f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- D. Bhowmik
- Donostia International Physics
Center, Paseo Manuel de Lardizabal
4, 20018 San Sebastián, Spain
| | - J. A. Pomposo
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento
de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain
- IKERBASQUE
- Basque Foundation for Science, Alameda
Urquijo 36, 48011 Bilbao, Spain
| | - F. Juranyi
- Laboratory for Neutron
Scattering, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
| | - V. García Sakai
- ISIS Facility, Rutherford Appleton Laboratory, Harwell Science & Innovation Campus, Chilton, Didcot OX11 0QX, United Kingdom
| | - M. Zamponi
- Jülich
Centre for Neutron Science, Forschungszentrum Jülich GmbH, outstation at Heinz
Maier-Leibnitz Zentrum, Lichtenbergstr. 1, 85747 Garching, Germany
| | - A. Arbe
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - J. Colmenero
- Donostia International Physics
Center, Paseo Manuel de Lardizabal
4, 20018 San Sebastián, Spain
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento
de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain
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21
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Shi W, Liu W, Yang J, He Z, Han CC. Hierarchical coarsening in the late stage of viscoelastic phase separation. SOFT MATTER 2014; 10:2649-2655. [PMID: 24647681 DOI: 10.1039/c3sm52713a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Coarsening is a general phenomenon in phase separating mixtures. In this study, we report a hierarchical coarsening at different length scales. Dispersed domains grew by direct combination of two/three small ones while some small domains can survive for a long time. The small angle laser light scattering showed that the scattered intensity exhibited multiple "decay-growth" transitions in the coarsening process. The evolution of the main peak gave a characteristic power law index of about -3/4, which is much faster than the -1/3 relationship from the traditional theories. We propose that relaxation and hydrodynamic flow play important roles in this process.
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Affiliation(s)
- Weichao Shi
- Beijing National Laboratory for Molecular Sciences, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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22
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He Z, Shi W, Chen F, Liu W, Liang Y, Han CC. Effective Morphology Control in an Immiscible Crystalline/Crystalline Blend by Artificially Selected Viscoelastic Phase Separation Pathways. Macromolecules 2014. [DOI: 10.1021/ma5001496] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiyuan He
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Weichao Shi
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Fenghua Chen
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Wei Liu
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yongri Liang
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, P. R. China
| | - Charles C. Han
- State Key Laboratory of Polymer Physics and Chemistry,
Joint Laboratory of Polymer Science and Materials, Beijing National
Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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23
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Hu Z, Zhang J, Wang H, Li T, Liu Z, Yu Y. Dual effects of mesoscopic fillers on the polyethersulfone modified cyanate ester: enhanced viscoelastic effect and mechanical properties. RSC Adv 2014. [DOI: 10.1039/c4ra06808d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Enlarging the filler content and decreasing the filler size contribute to enhancing both viscoelastic effect and mechanical property of polyethersulfone modified cyanate system.
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Affiliation(s)
- Zhongnan Hu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
| | - Jie Zhang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
| | - Huiping Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
| | - Tian Li
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
| | - Zhuoyu Liu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
| | - Yingfeng Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai, China
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24
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Chen N, Yan LT, Xie XM. Interplay between Crystallization and Phase Separation in PS-b-PMMA/PEO Blends: The Effect of Confinement. Macromolecules 2013. [DOI: 10.1021/ma4005692] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nan Chen
- Key Laboratory
of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Li-Tang Yan
- Key Laboratory
of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xu-Ming Xie
- Key Laboratory
of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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25
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Shi W, Yang J, Liu W, Zhang L, Han CC. Anomalous Phase Separation Dynamics under Asymmetric Viscoelastic Effect: Where Fluidic and Elastic Properties Meet. Macromolecules 2013. [DOI: 10.1021/ma400032w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weichao Shi
- Beijing National Laboratory for Molecular
Sciences,
Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jingjing Yang
- Beijing National Laboratory for Molecular
Sciences,
Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei Liu
- Beijing National Laboratory for Molecular
Sciences,
Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lina Zhang
- Beijing National Laboratory for Molecular
Sciences,
Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Charles C. Han
- Beijing National Laboratory for Molecular
Sciences,
Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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