1
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Xu J, Wang X, Bian Z, Wu X, You J, Wang X. Surface crystalline structure of thin poly(l-lactide) films determined by the long-range substrate effect. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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2
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Petek ES, Katsumata R. Thickness Dependence of Contact Angles in Multilayered Ultrathin Polymer Films. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01123] [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]
Affiliation(s)
- Evon S. Petek
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Dr, Amherst, Massachusetts 01003, United States
| | - Reika Katsumata
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Dr, Amherst, Massachusetts 01003, United States
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3
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Miyata T, Kawagoe Y, Okabe T, Jinnai H. Morphologies of polymer chains adsorbed on inorganic nanoparticles in a polymer composite as revealed by atomic-resolution electron microscopy. Polym J 2022. [DOI: 10.1038/s41428-022-00690-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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4
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Yamaoka K, Yamada NL, Hori K, Fujii Y, Torikai N. Interfacial Selective Study on the Gelation Behavior of Aqueous Methylcellulose Solution via a Quartz Crystal Microbalance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4494-4502. [PMID: 35377665 DOI: 10.1021/acs.langmuir.1c02728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
It is important to understand the interfacial structure and physical properties of a polymer material to improve its function. In this study, we used a quartz crystal microbalance (QCM) and neutron reflectivity (NR) measurements to evaluate the viscoelasticity and structure of an aqueous methylcellulose solution near the gold interface. The apparent shear modulus, which was calculated from the complex frequency, was used to assess gelation behavior. The apparent shear modulus determined via the QCM suggested high-frequency rheological properties that reflected the relaxation of skeletal stretching and rotational motion of polymer segments, as well as cooperative motion of the various functional groups. The gelation temperature was found to be lowered at the interface in comparison with that of the bulk. It is suggested that the QCM can evaluate the shear modulus accompanying the gelation near the interface. The interfacial segregation on the gold substrate caused by the surface free energy and long-range van der Waals interaction was observed from NR measurements.
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Affiliation(s)
- Kenji Yamaoka
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
| | - Norifumi L Yamada
- Institute for Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Koichiro Hori
- Neutron Science Laboratory, Institute for Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Yoshihisa Fujii
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
| | - Naoya Torikai
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
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5
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Abstract
The lightweight and high-strength functional nanocomposites are important in many practical applications. Natural biomaterials with excellent mechanical properties provide inspiration for improving the performance of composite materials. Previous studies have usually focused on the bionic design of the material's microstructure, sometimes overlooking the importance of the interphase in the nanocomposite system. In this Perspective, we will focus on the construction and control of the interphase in confined space and the connection between the interphase and the macroscopic properties of the materials. We shall survey the current understanding of the critical size of the interphase and discuss the general rules of interphase formation. We hope to raise awareness of the interphase concept and encourage more experimental and simulation studies on this subject, with the aim of an optimal design and controllable preparation of polymer nanocomposite materials.
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Affiliation(s)
- Jin Huang
- Key
Laboratory of Bio-Inspired Smart Interfacial Science and Technology
of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, People’s Republic
of China
- School
of Mechanical Engineering and Automation, Beihang University, Beijing 100191, People’s Republic
of China
| | - Jiajia Zhou
- South
China Advanced Institute for Soft Matter Science and Technology, School
of Molecular Science and Engineering, South
China University of Technology, Guangzhou 510640, People’s Republic of China
- Guangdong
Provincial Key Laboratory of Functional and Intelligent Hybrid Materials
and Devices, South China University of Technology, Guangzhou 510640, People’s Republic of China
- Email
for J.Z.:
| | - Mingjie Liu
- Key
Laboratory of Bio-Inspired Smart Interfacial Science and Technology
of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, People’s Republic
of China
- Email for M.L.:
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6
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Li Z, Guo F, Pang K, Lin J, Gao Q, Chen Y, Chang D, Wang Y, Liu S, Han Y, Liu Y, Xu Z, Gao C. Precise Thermoplastic Processing of Graphene Oxide Layered Solid by Polymer Intercalation. NANO-MICRO LETTERS 2021; 14:12. [PMID: 34862936 PMCID: PMC8643290 DOI: 10.1007/s40820-021-00755-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/18/2021] [Indexed: 05/16/2023]
Abstract
The processing capability is vital for the wide applications of materials to forge structures as-demand. Graphene-based macroscopic materials have shown excellent mechanical and functional properties. However, different from usual polymers and metals, graphene solids exhibit limited deformability and processibility for precise forming. Here, we present a precise thermoplastic forming of graphene materials by polymer intercalation from graphene oxide (GO) precursor. The intercalated polymer enables the thermoplasticity of GO solids by thermally activated motion of polymer chains. We detect a critical minimum containing of intercalated polymer that can expand the interlayer spacing exceeding 1.4 nm to activate thermoplasticity, which becomes the criteria for thermal plastic forming of GO solids. By thermoplastic forming, the flat GO-composite films are forged to Gaussian curved shapes and imprinted to have surface relief patterns with size precision down to 360 nm. The plastic-formed structures maintain the structural integration with outstanding electrical (3.07 × 105 S m-1) and thermal conductivity (745.65 W m-1 K-1) after removal of polymers. The thermoplastic strategy greatly extends the forming capability of GO materials and other layered materials and promises versatile structural designs for more broad applications.
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Affiliation(s)
- Zeshen Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Fan Guo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China.
- National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, 1 Guanghua Road, Nanjing, 210094, People's Republic of China.
| | - Kai Pang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Jiahao Lin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Qiang Gao
- School of Mechanical Engineering, Southeast University, Nanjing, 211189, People's Republic of China
| | - Yance Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Dan Chang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Ya Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Senping Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Yi Han
- Hangzhou Gaoxi Technology Co. Ltd, Yuhang District, Liangzhu, 311113, People's Republic of China
| | - Yingjun Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China.
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China.
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7
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Relaxation behavior of polymer thin films: Effects of free surface, buried interface, and geometrical confinement. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101431] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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9
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Giermanska J, Ben Jabrallah S, Delorme N, Vignaud G, Chapel JP. Direct experimental evidences of the density variation of ultrathin polymer films with thickness. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123934] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Guo F, Wang Y, Jiang Y, Li Z, Xu Z, Zhao X, Guo T, Jiang W, Gao C. Hydroplastic Micromolding of 2D Sheets. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008116. [PMID: 33988260 DOI: 10.1002/adma.202008116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/22/2021] [Indexed: 05/28/2023]
Abstract
Processing 2D sheets into desired structures with high precision is of great importance for fabrication and application of their assemblies. Solution processing of 2D sheets from dilute dispersions is a commonly used method but offers limited control over feature size precision owing to the extreme volume shrinkage. Plastic processing from the solid state is therefore a preferable approach to achieve high precision. However, plastic processing is intrinsically hampered by strong interlayer interactions of the 2D sheet solids. Here, a hydroplastic molding method to shape layered solids of 2D sheets with micrometer-scale precision under ambient conditions is reported. The dried 2D layered solids are plasticized by intercalated solvents, affording plastic near-solid compounds that enable local plastic deformation. Such an intercalated solvent-induced hydroplasticity is found in a broad family of 2D materials, for example graphene, MoS2 , and MXene. The hydroplastic molding enables fabrication of complex spatial structures (knurling, origami) and microimprinted tubular structures down to diameters of 390 nm with good fidelity. The method enhances the structural accuracy and enriches the structural diversity of 2D macroassemblies, thus providing a feasible strategy to tune their electrical, optical, and other functional properties.
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Affiliation(s)
- Fan Guo
- National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, 1 Guanghua Road, Nanjing, 210094, P. R. China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Yue Wang
- National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, 1 Guanghua Road, Nanjing, 210094, P. R. China
| | - Yanqiu Jiang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Zeshen Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Xiaoli Zhao
- School of Materials Science and Engineering, Tongji University, Shanghai, 200123, China
| | - Tingbiao Guo
- Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Wei Jiang
- National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, 1 Guanghua Road, Nanjing, 210094, P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
- Graphene Industry and Engineering Research Institute, Xiamen University, No. 422 Siming Road, Xiamen, 361005, P. R. China
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11
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Yamamoto S, Tanaka K. Entropy-driven segregation in epoxy-amine systems at a copper interface. SOFT MATTER 2021; 17:1359-1367. [PMID: 33325969 DOI: 10.1039/d0sm01600d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The composition of an epoxy resin at the interface with the adherend is usually different from that in the bulk due to the enrichment of a specific constituent, a characteristic called interfacial segregation. For better adhesion, it should be precisely understood how epoxy and amine molecules exist on the adherend surface and react with each other to form a three-dimensional network. In this study, the entropic factor of the segregation in a mixture of epoxy and amine at the copper interface before and after the curing reaction is discussed on the basis of a full-atomistic molecular dynamics (MD) simulation. Smaller molecules were preferentially segregated at the interface regardless of the epoxy and amine, and this segregation remained after the curing process. No segregation occurred at the interface for a combination composed of epoxy and amine molecules with a similar size. These findings make it clear that the size disparity between constituents affects the interfacial segregation via the packing and/or translational entropy. The curing reaction was slower near the interface than in the bulk, and a large amount of unreacted molecules remained there. Finally, the effect of molecular shape was also examined. Linear molecules were more likely to segregate than round-shaped ones even though they were similar in volume. We believe that these findings, which are difficult to obtain experimentally, contribute to the understanding of the interfacial adhesion phenomena on a molecular scale.
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Affiliation(s)
- Satoru Yamamoto
- Centre for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka 819-0395, Japan.
| | - Keiji Tanaka
- Centre for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka 819-0395, Japan. and Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan. and Department of Automotive Science, Kyushu University, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
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12
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Wu X, Xu J, Sun W, Hong Y, Zhang C, Zhang L, Wang X. Interfacial Effect in Supported Thin PET Films Covered with a Thin PPO Layer. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00575] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoling Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jianquan Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Weihan Sun
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yongming Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Cuiyun Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Li Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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13
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Experimental evidence on the effect of substrate roughness on segmental dynamics of confined polymer films. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Nguyen HK, Kawaguchi D, Tanaka K. Effect of Molecular Architecture on Conformational Relaxation of Polymer Chains at Interfaces. Macromol Rapid Commun 2020; 41:e2000096. [PMID: 32459031 DOI: 10.1002/marc.202000096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/16/2020] [Indexed: 11/10/2022]
Abstract
Dynamics of polymer chains near an interface with an inorganic material are believed to strongly affect the physical properties of polymers in nanocomposites and thin films. An effect of molecular architecture on the conformational relaxation behavior of polystyrene (PS) chains at the quartz interface using sum-frequency generation spectroscopy is reported here. The relaxation dynamics of chains in direct contact with the quartz interface is slower with a star-shaped architecture than that with its linear counterpart. The extent of the delay becomes more pronounced with increasing number of arms. This can be explained in terms of the superior interfacial activity to the quartz surface for the star-shaped PS.
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Affiliation(s)
- Hung K Nguyen
- Department of Applied Chemistry, Kyushu University, Fukuoka, 819-0395, Japan
| | - Daisuke Kawaguchi
- Department of Applied Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Keiji Tanaka
- Department of Applied Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka, 819-0395, Japan.,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
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15
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Li P, Yang M, Liu Y, Qin H, Liu J, Xu Z, Liu Y, Meng F, Lin J, Wang F, Gao C. Continuous crystalline graphene papers with gigapascal strength by intercalation modulated plasticization. Nat Commun 2020; 11:2645. [PMID: 32461580 PMCID: PMC7253461 DOI: 10.1038/s41467-020-16494-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/06/2020] [Indexed: 11/18/2022] Open
Abstract
Graphene has an extremely high in-plane strength yet considerable out-of-plane softness. High crystalline order of graphene assemblies is desired to utilize their in-plane properties, however, challenged by the easy formation of chaotic wrinkles for the intrinsic softness. Here, we find an intercalation modulated plasticization phenomenon, present a continuous plasticization stretching method to regulate spontaneous wrinkles of graphene sheets into crystalline orders, and fabricate continuous graphene papers with a high Hermans' order of 0.93. The crystalline graphene paper exhibits superior mechanical (tensile strength of 1.1 GPa, stiffness of 62.8 GPa) and conductive properties (electrical conductivity of 1.1 × 105 S m-1, thermal conductivity of 109.11 W m-1 K-1). We extend the ultrastrong graphene papers to the realistic laminated composites and achieve high strength combining with attractive conductive and electromagnetic shielding performance. The intercalation modulated plasticity is revealed as a vital state of graphene assemblies, contributing to their industrial processing as metals and plastics.
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Affiliation(s)
- Peng Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Mincheng Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Yingjun Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Huasong Qin
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Jingran Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China.
| | - Yilun Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China.
| | - Fanxu Meng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Jiahao Lin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Fang Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, P. R. China.
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16
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Lee S, Lee W, Yamada NL, Tanaka K, Kim JH, Lee H, Ryu DY. Instability of Polystyrene Film and Thermal Behaviors Mediated by Unfavorable Silicon Oxide Interlayer. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01284] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Seungjae Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Wooseop Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Norifumi L. Yamada
- Neutron Science Division, Institute for Materials Structure Science, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1106, Japan
| | - Keiji Tanaka
- Department of Applied Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Jong Hak Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Hoyeon Lee
- Neutron Science Center, Korea Atomic Energy Research Institute, 989 Daedeok-daero, Yuseong-gu, Daejeon 34057, Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
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17
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Zuo B, Wang F, Hao Z, He H, Zhang S, Priestley RD, Wang X. Influence of the Interfacial Effect on Polymer Thin-Film Dynamics Scaled by the Distance of Chain Mobility Suppression by the Substrate. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00226] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Biao Zuo
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Fengliang Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhiwei Hao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Haolin He
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shasha Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Rodney D. Priestley
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Xinping Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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18
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Yu X, Wang T, Tsui OKC, Weng LT. Tuning the Effective Viscosity of Polymer Films by Chemical Modifications. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02699] [Citation(s) in RCA: 6] [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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19
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20
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Sugimoto S, Inutsuka M, Kawaguchi D, Tanaka K. Reorientation Kinetics of Local Conformation of Polyisoprene at Substrate Interface. ACS Macro Lett 2018; 7:85-89. [PMID: 35610922 DOI: 10.1021/acsmacrolett.7b00927] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The performance of a polymer composite material, in which inorganic fillers are dispersed, is closely related to the aggregation states and dynamics of polymer chains at the interface with the filler. In this study, the local conformation of polyisoprene (PI) at a quartz substrate interface was studied as a model system for the rubber/filler composite material. PI films were prepared from a toluene solution onto quartz substrates by a spin-coating method. Sum-frequency generation spectroscopy revealed that the local conformation of PI chains at the quartz interface depended on the spinning rate. The tilt angle of methyl groups increased with the rotational speed, probably due to the centrifugal force applied to chains and probably also the evaporation rate of the solvent during the solidification process. This result indicates that the interfacial orientation of PI chains can remain even at room temperature, which is 87 K higher than the bulk glass transition temperature (Tgb). The interfacial orientation disappeared at a temperature approximately 120 K higher than Tgb.
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Affiliation(s)
- Shin Sugimoto
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Manabu Inutsuka
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Daisuke Kawaguchi
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
| | - Keiji Tanaka
- Department
of Automotive Science, ‡Department of Applied Chemistry, §Education Center for
Global Leaders in Molecular Systems for Devices, and ∥International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, 819-0395, Japan
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21
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Cangialosi D. Glass Transition and Physical Aging of Confined Polymers Investigated by Calorimetric Techniques. RECENT ADVANCES, TECHNIQUES AND APPLICATIONS 2018. [DOI: 10.1016/b978-0-444-64062-8.00013-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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22
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Xu J, Liu Z, Lan Y, Zuo B, Wang X, Yang J, Zhang W, Hu W. Mobility Gradient of Poly(ethylene terephthalate) Chains near a Substrate Scaled by the Thickness of the Adsorbed Layer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00922] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jianquan Xu
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhenshan Liu
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Lan
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Biao Zuo
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Juping Yang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wei Zhang
- Department
of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing
Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wenbing Hu
- Department
of Polymer Science and Engineering, State Key Lab of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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23
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Xu J, Zhang Y, Zhou H, Hong Y, Zuo B, Wang X, Zhang L. Probing the Utmost Distance of Polymer Dynamics Suppression by a Substrate by Investigating the Diffusion of Fluorinated Tracer-Labeled Polymer Chains. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01158] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jianquan Xu
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yizhi Zhang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Hao Zhou
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yongming Hong
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Biao Zuo
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xinping Wang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Li Zhang
- Department of Chemistry,
Key Laboratory of Advanced Textile Materials and Manufacturing Technology
of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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24
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Nguyen HK, Inutsuka M, Kawaguchi D, Tanaka K. Depth-resolved local conformation and thermal relaxation of polystyrene near substrate interface. J Chem Phys 2017; 146:203313. [DOI: 10.1063/1.4976523] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hung Kim Nguyen
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
| | - Manabu Inutsuka
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
| | - Daisuke Kawaguchi
- Education Center for Global Leaders in Molecular Systems for Devices, Kyushu University, Fukuoka 819-0395, Japan
| | - Keiji Tanaka
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
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25
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Unni AB, Vignaud G, Chapel JP, Giermanska J, Bal JK, Delorme N, Beuvier T, Thomas S, Grohens Y, Gibaud A. Probing the Density Variation of Confined Polymer Thin Films via Simple Model-Independent Nanoparticle Adsorption. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02617] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- A. Beena Unni
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India 686560
| | - G. Vignaud
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - J. P. Chapel
- Centre
de Recherche Paul Pascal (CRPP), UPR 8641, CNRS, F-33600 Pessac, France
- Centre de
Recherche Paul Pascal, Université de Bordeaux, F-33600 Pessac, France
| | - J. Giermanska
- Centre
de Recherche Paul Pascal (CRPP), UPR 8641, CNRS, F-33600 Pessac, France
- Centre de
Recherche Paul Pascal, Université de Bordeaux, F-33600 Pessac, France
| | - J. K. Bal
- Centre
for Research in Nanoscience and Nanotechnology, University of Calcutta, Technology Campus, Block JD2, Sector III, Saltlake
City, Kolkata 700098, India
| | - N. Delorme
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
| | - T. Beuvier
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
| | - S. Thomas
- International
and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India 686560
| | - Y. Grohens
- FRE
CNRS 3744, IRDL, Univ. Bretagne Sud, F-56100 Lorient, France
| | - A. Gibaud
- LUNAM
Université, IMMM, Faculté de Sciences, Université du Maine, UMR 6283 CNRS, 72000 Le Mans, Cedex 9, France
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26
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Shimomura S, Inutsuka M, Yamada NL, Tanaka K. Unswollen layer of cross-linked polyisoprene at the solid interface. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Sun S, Xu H, Han J, Zhu Y, Zuo B, Wang X, Zhang W. The architecture of the adsorbed layer at the substrate interface determines the glass transition of supported ultrathin polystyrene films. SOFT MATTER 2016; 12:8348-8358. [PMID: 27714375 DOI: 10.1039/c6sm01500j] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To elucidate the mechanism underlying the effect of polymer/solid interfacial interactions on the dynamics of thin polymer films, the glass transition of thin end-functionalized polystyrene films supported on SiO2-Si, such as proton-terminated PS (PS-H), α,ω-dicarboxy-terminated PS (PS-COOH), and α,ω-dihydroxyl-terminated PS (PS-OH), was investigated. All the PS films exhibited a substantial depression in Tg with decreasing film thickness, while the extent of such depression was strongly dependent on the chemical structure of the end groups and molecular weights. It was found that T - T of the various PS films increased linearly with increasing hads/Rg, in which hads is the thickness of the interfacial adsorbed layer and Rg is the radius of gyration of PS. The hads/Rg is a direct reflection of the macromolecular chain conformation within the adsorbed layer which was affected by its end groups and molecular weights. These findings are in line with the work of Napolitano, and present direct experimental evidence.
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Affiliation(s)
- Shuzheng Sun
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Hao Xu
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Jun Han
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yumei Zhu
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wei Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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28
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Zuo B, Tian H, Liang Y, Xu H, Zhang W, Zhang L, Wang X. Probing the rheological properties of supported thin polystyrene films by investigating the growth dynamics of wetting ridges. SOFT MATTER 2016; 12:6120-6131. [PMID: 27355155 DOI: 10.1039/c6sm00881j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Despite its importance in the processing of nanomaterials, the rheological behavior of thin polymer films is poorly understood, partly due to the inherent measurement challenges. Herein, we have developed a facile method for investigating the rheological behavior of supported thin polymeric films by monitoring the growth of the "wetting ridge"-a microscopic protrusion on the film surface due to the capillary forces exerted by a drop of ionic liquid placed on the film surface. It was found that the growth dynamics of the wetting ridge and the behavior of polystyrene rheology are directly linked. Important rheological properties, such as the flow temperature (Tf), viscosity (η), and terminal relaxation time (τ0) of thin polystyrene films, can be derived by studying the development of the height of the wetting ridge with time and the sample temperature. Rheological studies using the proposed approach for supported thin polystyrene (PS) films with thickness down to 20 nm demonstrate that the PS thin film exhibits facilitated flow, with reduced viscosity and lowered viscous temperature and a shortened rubbery plateau, when SiOx-Si was used as the substrate. However, sluggish flow was observed for the PS film supported by hydrogen-passivated silicon substrates (H-Si). The differences in enthalpic interactions between PS and the substrates are the reason for this divergence in the whole-chain mobility and flow ability of thin PS films deposited on SiOx-Si and H-Si surfaces. These results indicate that this approach could be a reliable rheological probe for supported thin polymeric films with different thicknesses and various substrates.
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Affiliation(s)
- Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Houkuan Tian
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yongfeng Liang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Hao Xu
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wei Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Li Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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29
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Shimomura S, Inutsuka M, Tajima K, Nabika M, Moritomi S, Matsuno H, Tanaka K. Stabilization of polystyrene thin films by introduction of a functional end group. Polym J 2016. [DOI: 10.1038/pj.2016.58] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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30
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Tan AW, Torkelson JM. Poly(methyl methacrylate) nanotubes in AAO templates: Designing nanotube thickness and characterizing the T-confinement effect by DSC. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.11.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Zhang L, Elupula R, Grayson SM, Torkelson JM. Major Impact of Cyclic Chain Topology on the Tg-Confinement Effect of Supported Thin Films of Polystyrene. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02474] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Ravinder Elupula
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Scott M. Grayson
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
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32
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Evans CM, Kim S, Roth CB, Priestley RD, Broadbelt LJ, Torkelson JM. Role of neighboring domains in determining the magnitude and direction of Tg-confinement effects in binary, immiscible polymer systems. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.10.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Kim SK, Nguyen NA, Wie JJ, Park HS. Manipulating the glass transition behavior of sulfonated polystyrene by functionalized nanoparticle inclusion. NANOSCALE 2015; 7:8864-8872. [PMID: 25909461 DOI: 10.1039/c5nr01151e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanoscale interfaces can modify the phase transition behaviors of polymeric materials. Here, we report the double glass transition temperature (Tg) behavior of sulfonated polystyrene (sPS) by the inclusion of 14 nm amine-functionalized silica (NH2-SiO2) nanoparticles, which is different from the single Tg behaviors of neat sPS and silica (SiO2)-filled sPS. The inclusion of 20 wt% NH2-SiO2 nanoparticles results in an increase of Tg by 9.3 °C as well as revealing a second Tg reduced by 44.7 °C compared to the Tg of neat sPS. By contrast, when SiO2 nanoparticles with an identical concentration and size to NH2-SiO2 are dispersed, sPS composites possess a single Tg of 7.3 °C higher than that of the neat sPS. While a nanoscale dispersion is observed for SiO2 nanoparticles, as confirmed by microscopic and X-ray scattering analyses, NH2-SiO2 nanoparticles show the coexistence of micron-scale clustering along with a nanoscale dispersion of the individual nanoparticles. The micro-phase separation contributes to the free volume induced Tg reduction by the plasticization effect, whereas the Tg increase originates from the polymer segment mobility constrained by nanoconfinement and the rigid amorphous fractions deriving from strong polymer-particle interactions.
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Affiliation(s)
- Sung-Kon Kim
- Department of Materials Science and Engineering and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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34
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Neubauer N, Winkler R, Tress M, Uhlmann P, Reiche M, Kipnusu WK, Kremer F. Glassy dynamics of poly(2-vinyl-pyridine) brushes with varying grafting density. SOFT MATTER 2015; 11:3062-3066. [PMID: 25740018 DOI: 10.1039/c5sm00213c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The molecular dynamics of poly(2-vinyl-pyridine) (P2VP) brushes is measured by Broadband Dielectric Spectroscopy (BDS) in a wide temperature (250 K to 440 K) and broad spectral (0.1 Hz to 1 MHz) range. This is realized using nanostructured, highly conductive silicon electrodes being separated by silica spacers as small as 35 nm. A "grafting-to"-method is applied to prepare the P2VP-brushes with five different grafting densities (0.030 nm(-2) to 0.117 nm(-2)), covering the "true-brush" regime with highly stretched coils and the "mushroom-to-brush" transition regime. The film thickness ranges between 1.8 to 7.1 (±0.2) nm. Two relaxations are observed, an Arrhenius-like process being attributed to fluctuations in the poly(glycidyl-methacrylate) (PGMA) linker used for the grafting reaction and the segmental dynamics (dynamic glass transition) of the P2VP brushes. The latter is characterized by a Vogel-Fulcher-Tammann dependence similar to bulk P2VP. The results can be comprehended considering the length scale on which the dynamic glass transition (≤1 nm) takes place.
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Affiliation(s)
- Nils Neubauer
- Institute of Experimental Physics I, Leipzig University, 04103 Leipzig, Germany.
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35
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Li L, Chen J, Deng W, Zhang C, Sha Y, Cheng Z, Xue G, Zhou D. Glass Transitions of Poly(methyl methacrylate) Confined in Nanopores: Conversion of Three- and Two-Layer Models. J Phys Chem B 2015; 119:5047-54. [DOI: 10.1021/jp511248q] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Linling Li
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Jiao Chen
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Weijia Deng
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Chen Zhang
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Ye Sha
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Zhen Cheng
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Gi Xue
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Dongshan Zhou
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
School of Chemistry and Chemical Engineering, State Key Laboratory
of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China
- Xinjiang
Laboratory of Phase Transitions and Microstructures in Condensed Matters,
College of Physical Science and Technology, Yili Normal University, Yining 835000, P. R. China
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36
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Bao S, Wu Q, Qin W, Yu Q, Wang J, Liang G, Tang BZ. Sensitive and reliable detection of glass transition of polymers by fluorescent probes based on AIE luminogens. Polym Chem 2015. [DOI: 10.1039/c5py00308c] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sensitive and reliable approach for the detection of the glass transition of polymers using AIE luminogens as fluorescent probes was reported.
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Affiliation(s)
- Suping Bao
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Qihua Wu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Wei Qin
- HKUST-Shenzhen Research Institute
- Nanshan, Shenzhen
- China 518057
- Department of Chemistry
- Institute for Advanced Study
| | - Qiuling Yu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Jing Wang
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Guodong Liang
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute
- Nanshan, Shenzhen
- China 518057
- Department of Chemistry
- Institute for Advanced Study
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37
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Depth-dependent inhomogeneous characteristics in supported glassy polystyrene films revealed by ultra-low X-ray reflectivity measurements. Polym J 2014. [DOI: 10.1038/pj.2014.80] [Citation(s) in RCA: 5] [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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38
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Oda Y, Horinouchi A, Kawaguchi D, Matsuno H, Kanaoka S, Aoshima S, Tanaka K. Effect of side-chain carbonyl groups on the interface of vinyl polymers with water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1215-1219. [PMID: 24467626 DOI: 10.1021/la404802j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The nature of the polymer-water interface in the poly(methyl 2-propenyl ether) (PMPE)-water model system is investigated by sum-frequency generation spectroscopy, which at the moment gives the best depth resolution among available techniques. PMPE, synthesized via living cationic polymerization, is structurally similar to poly(methyl methacrylate) (PMMA) except for lacking a carbonyl group. We here probe the polymer local conformation as well as the aggregation states of water at the interface. Comparing the results of our measurements to the PMMA-water system, the effect of a carbonyl group on the water structure at the interface is discussed. This knowledge should be crucial to the design and construction of highly functionalized polymer interfaces for bioapplications.
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Affiliation(s)
- Yukari Oda
- Department of Applied Chemistry, ‡Education Center for Global Leaders in Molecular Systems for Devices, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University , Fukuoka 819-0395, Japan
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39
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Ogata Y, Kawaguchi D, Yamada NL, Tanaka K. Multistep Thickening of Nafion Thin Films in Water. ACS Macro Lett 2013; 2:856-859. [PMID: 35607003 DOI: 10.1021/mz400322q] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Water sorption kinetics in thin Nafion films prepared on silver and silicon oxide substrates was examined by surface plasmon resonance and neutron reflectivity measurements. It was found that the films thickened in three regimes. The asymptotic swelling ratios in regimes I, II, and III were 1.05, 1.26, and 1.41, respectively. These values were independent of the substrate species and were coincident with the transition points of different hydration states in the bulk Nafion; water binding to sulfonic acid groups, the formation of sphere-like ionic clusters, and bridge formation between clusters. The swelling was much slower in thin films than in the bulk due to the mobility restriction of Nafion near the substrate.
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Affiliation(s)
| | | | - Norifumi L. Yamada
- Neutron
Science Laboratory, High Energy Accelerator Research Organization, Ibaraki 319-1106, Japan
| | - Keiji Tanaka
- International
Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
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Zuo B, Qian C, Yan D, Liu Y, Liu W, Fan H, Tian H, Wang X. Probing Glass Transitions in Thin and Ultrathin Polystyrene Films by Stick–Slip Behavior during Dynamic Wetting of Liquid Droplets on Their Surfaces. Macromolecules 2013. [DOI: 10.1021/ma3023734] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chao Qian
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Donghuan Yan
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yingjun Liu
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wanglong Liu
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hao Fan
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Houkuan Tian
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile
Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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