1
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Nguyen T, Bavarian M, Nejati S. Correlating the Macrostructural Variations of an Ion Gel with Its Carbon Dioxide Sorption Capacity. MEMBRANES 2022; 12:1087. [PMID: 36363642 PMCID: PMC9694987 DOI: 10.3390/membranes12111087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
We report on a direct correlation between the macroscale structural variations and the gas sorption capacities of an ion gel. Here, we chose 1-ethyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide ([Emim][TF2N]) and poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP) as the ionic liquid and host polymer, respectively. The CO2 sorption in the thin films of the IL-polymer was measured using the gravimetric method. The results of our experiment showed that the trend in CO2 uptake of these mixtures was nonlinearly correlated with the content of IL. Here, we highlight that the variations in the molecular structure of the polymers were the main reason behind the observed trend. The presented data suggested the possibility of using the composition of mixtures containing IL and polymers to realize a synergistic gain for gas sorption in these mixtures.
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2
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Xiao Y, Bao Y, Liu Y, Xu J, Zhang A, Zhu C, Cui S. Regulating the Crystallization Morphology of Poly(vinylidene fluoride‐chlorotrifluoroethylene) Ultrathin Film by Changing Temperature and Substrate. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100469] [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]
Affiliation(s)
- Yaoxin Xiao
- Institute of Chemical Materials China Academy of Engineering Physics Mianyang 621900 China
- Key Laboratory of Advanced Technologies of Materials Southwest Jiaotong University Chengdu 610031 China
| | - Yu Bao
- Institute of Chemical Materials China Academy of Engineering Physics Mianyang 621900 China
| | - Yu Liu
- Key Laboratory of Advanced Technologies of Materials Southwest Jiaotong University Chengdu 610031 China
| | - Jinjiang Xu
- Key Laboratory of Advanced Technologies of Materials Southwest Jiaotong University Chengdu 610031 China
| | - Aimin Zhang
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 China
| | - Chunhua Zhu
- Key Laboratory of Advanced Technologies of Materials Southwest Jiaotong University Chengdu 610031 China
| | - Shuxun Cui
- Institute of Chemical Materials China Academy of Engineering Physics Mianyang 621900 China
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3
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Kawaguchi D, Yamamoto K, Abe T, Jiang N, Koga T, Yamamoto S, Tanaka K. Local orientation of chains at crystal/amorphous interfaces buried in isotactic polypropylene thin films. Phys Chem Chem Phys 2021; 23:23466-23472. [PMID: 34643197 DOI: 10.1039/d1cp03959h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A better understanding of the aggregation states of polymer chains in thin films is of pivotal importance for developing thin film polymer devices in addition to its inherent scientific interest. Here we report the preferential orientation of the crystalline lamellae for isotactic polypropylene (iPP) in spin-coated films by grazing incidence of wide-angle X-ray diffraction in conjunction with sum frequency generation vibrational spectroscopy, which provides information on the local conformation of chains at crystal/amorphous interfaces buried in a thin film. The crystalline orientation of iPP, which formed cross-hatched lamellae induced by lamellar branching, altered from a mixture of edge-on and face-on mother lamellae to preferential face-on mother lamellae with decreasing thickness. The orientation of methyl groups at the crystal/amorphous interfaces in the interior region of the iPP films changed, accompanied by a change in the lamellar orientation.
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Affiliation(s)
- 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
| | - Kentaro Yamamoto
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan.
| | - Tatsuki Abe
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan.
| | - Naisheng Jiang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794-2275, USA
| | - Tadanori Koga
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794-2275, USA.,Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, USA
| | - Satoru Yamamoto
- 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
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4
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Identification of the LLDPE Constitutive Material Model for Energy Absorption in Impact Applications. Polymers (Basel) 2021; 13:polym13101537. [PMID: 34064915 PMCID: PMC8151402 DOI: 10.3390/polym13101537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
Current industrial trends bring new challenges in energy absorbing systems. Polymer materials as the traditional packaging materials seem to be promising due to their low weight, structure, and production price. Based on the review, the linear low-density polyethylene (LLDPE) material was identified as the most promising material for absorbing impact energy. The current paper addresses the identification of the material parameters and the development of a constitutive material model to be used in future designs by virtual prototyping. The paper deals with the experimental measurement of the stress-strain relations of linear low-density polyethylene under static and dynamic loading. The quasi-static measurement was realized in two perpendicular principal directions and was supplemented by a test measurement in the 45° direction, i.e., exactly between the principal directions. The quasi-static stress-strain curves were analyzed as an initial step for dynamic strain rate-dependent material behavior. The dynamic response was tested in a drop tower using a spherical impactor hitting a flat material multi-layered specimen at two different energy levels. The strain rate-dependent material model was identified by optimizing the static material response obtained in the dynamic experiments. The material model was validated by the virtual reconstruction of the experiments and by comparing the numerical results to the experimental ones.
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5
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Xu D, Wang H, Bin Y. Morphology transition of
micron‐thick
linear
low‐density
polyethylene films and the construction of nested spherulitic crystals via combinatorial methodology. POLYMER CRYSTALLIZATION 2021. [DOI: 10.1002/pcr2.10163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Duigong Xu
- Department of Polymer Science and Engineering Dalian University of Technology Dalian China
- Institute of Materials, China Academy of Engineering Physics Mianyang China
| | - Hai Wang
- Department of Polymer Science and Engineering Dalian University of Technology Dalian China
| | - Yuezhen Bin
- Department of Polymer Science and Engineering Dalian University of Technology Dalian China
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6
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Li H, Liu D, Bu X, Zhou Z, Ren Z, Sun X, Reiter R, Yan S, Reiter G. Formation of Asymmetric Leaf-Shaped Crystals in Ultrathin Films of Oriented Polyethylene Molecules Resulting from High-Temperature Relaxation and Recrystallization. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huihui Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Duanzijing Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinyun Bu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenzhen Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhongjie Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoli Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Renate Reiter
- Institute of Physics and Freiburg Materials Research Center, University of Freiburg, Freiburg 79104, Germany
| | - Shouke Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Günter Reiter
- Institute of Physics and Freiburg Materials Research Center, University of Freiburg, Freiburg 79104, Germany
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7
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Wang Y, Jeong H, Chowdhury M, Arnold CB, Priestley RD. Exploiting physical vapor deposition for morphological control in semi‐crystalline polymer films. POLYMER CRYSTALLIZATION 2018. [DOI: 10.1002/pcr2.10021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yucheng Wang
- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey
| | - Hyuncheol Jeong
- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey
| | - Mithun Chowdhury
- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey
| | - Craig B. Arnold
- Department of Mechanical and Aerospace Engineering Princeton University Princeton New Jersey
- Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey
| | - Rodney D. Priestley
- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey
- Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey
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8
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Agbolaghi S, Abbaspoor S, Abbasi F. A comprehensive review on polymer single crystals—From fundamental concepts to applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Reorientation of the poly(3-hydroxybutyrate- co -3-hydroxyhexanoate) crystal in thin film induced by polyethylene glycol. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.05.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Crystalline and Spherulitic Morphology of Polymers Crystallized in Confined Systems. CRYSTALS 2017. [DOI: 10.3390/cryst7050147] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Due to the effects of microphase separation and physical dimensions, confinement widely exists in the multi-component polymer systems (e.g., polymer blends, copolymers) and the polymers having nanoscale dimensions, such as thin films and nanofibers. Semicrystalline polymers usually show different crystallization kinetics, crystalline structure and morphology from the bulk when they are confined in the nanoscale environments; this may dramatically influence the physical performances of the resulting materials. Therefore, investigations on the crystalline and spherulitic morphology of semicrystalline polymers in confined systems are essential from both scientific and technological viewpoints; significant progresses have been achieved in this field in recent years. In this article, we will review the recent research progresses on the crystalline and spherulitic morphology of polymers crystallized in the nanoscale confined environments. According to the types of confined systems, crystalline, spherulitic morphology and morphological evolution of semicrystalline polymers in the ultrathin films, miscible polymer blends and block copolymers will be summarized and reviewed.
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11
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Ma L, Zhou Z, Zhang J, Sun X, Li H, Zhang J, Yan S. Temperature-Dependent Recrystallization Morphologies of Carbon-Coated Isotactic Polypropylene Highly Oriented Thin Films. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00299] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Le Ma
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenzhen Zhou
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Zhang
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoli Sun
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huihui Li
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianming Zhang
- Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Shouke Yan
- State
Key Laboratory of Chemical Resource Engineering, Beijing Advanced
Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao 266042, China
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12
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13
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Crystallization of polypropylene in multilayered spaces: Controllable morphologies and properties. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Control of morphology and lamellae orientations in thin poly (ε-caprolactone) films by blending with different molar mass of polystyrene. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Prud’homme RE. Crystallization and morphology of ultrathin films of homopolymers and polymer blends. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2015.11.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Fang A, Haataja M. Simulation study of twisted crystal growth in organic thin films. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:042404. [PMID: 26565254 DOI: 10.1103/physreve.92.042404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Indexed: 06/05/2023]
Abstract
Many polymer and organic small-molecule thin films crystallize with microstructures that twist or curve in a regular manner as crystal growth proceeds. Here we present a phase-field model that energetically favors twisting of the three-dimensional crystalline orientation about and along particular axes, allowing morphologies such as banded spherulites, curved dendrites, and "s"- or "c"-shaped needle crystals to be simulated. When twisting about the fast-growing crystalline axis is energetically favored and spherulitic growth conditions are imposed, crystallization occurs in the form of banded spherulites composed of radially oriented twisted crystalline fibers. Due to the lack of symmetry, twisting along the normal growth direction leads to heterochiral banded spherulites with opposite twist handedness in each half of the spherulite. When twisting is instead favored about the axis perpendicular to the plane of the substrate and along the normal growth direction under diffusion-limited single-crystalline growth conditions, crystallization occurs in the form of curved dendrites with uniformly rotating branches. We show that the rate at which the branches curve affects not only the morphology but also the overall kinetics of crystallization, as the total crystallized area at a given time is maximized for a finite turning rate.
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Affiliation(s)
- Alta Fang
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | - Mikko Haataja
- Department of Mechanical and Aerospace Engineering, Princeton Institute for the Science and Technology of Materials (PRISM), the Andlinger Center for Energy and the Environment (ACEE), and Program in Applied and Computational Mathematics (PACM), Princeton University, Princeton, New Jersey 08544, USA
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17
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Serral M, Mangnus M, Sandkühler P, Bonet Avalos J. Viscoelastic response of multilayer polymeric films of linear low-density polyethylene and ethylene vinyl alcohol copolymer. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Serral
- Departament d'Enginyeria Química; Universitat Rovira i Virgili; Av. dels Països Catalans, 26 Tarragona 43007 Spain
| | - Marc Mangnus
- Dow Benelux B.V., Plastics R&D; 4530 AA Terneuzen The Netherlands
| | - Peter Sandkühler
- Dow Europe GmbH, Packaging & Specialty Plastics; Horgen 8810 Switzerland
| | - Josep Bonet Avalos
- Departament d'Enginyeria Química; Universitat Rovira i Virgili; Av. dels Països Catalans, 26 Tarragona 43007 Spain
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18
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Free and constrained amorphous phases in polyethylene: Interpretation of 1H NMR and SAXS data over a broad range of crystallinity. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Tan K, Zhang H, Wen M, Du Z. Effects of the film thickness on the morphology, structure, and crystal orientation behavior of poly(chloro-p-xylylene) films. J Appl Polym Sci 2014. [DOI: 10.1002/app.41394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kaiyuan Tan
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang Sichuan 621900 People's Republic of China
| | - Hao Zhang
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang Sichuan 621900 People's Republic of China
| | - Maoping Wen
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang Sichuan 621900 People's Republic of China
| | - Ziwei Du
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang Sichuan 621900 People's Republic of China
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20
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Controlling of crystallite orientation for poly(ethylene oxide) thin films with cellulose single nano-fibers. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Zhong LW, Ren XK, Yang S, Chen EQ, Sun CX, Stroeks A, Yang TY. Lamellar orientation of polyamide 6 thin film crystallization on solid substrates. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.06.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Thickness-dependent orientation structure in poly(ethylene oxide) multi-layer crystals. CHINESE JOURNAL OF POLYMER SCIENCE 2014. [DOI: 10.1007/s10118-014-1504-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Jordan AM, Lenart WR, Carr JM, Baer E, Korley LTJ. Structural evolution during mechanical deformation in high-barrier PVDF-TFE/PET multilayer films using in situ X-ray techniques. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3987-3994. [PMID: 24593226 DOI: 10.1021/am4053893] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poly(vinylidene fluoride-co-tetrafluoroethylene) (PVDF-TFE) is confined between alternating layers of poly(ethylene terephthalate) (PET) utilizing a unique multilayer processing technology, in which PVDF-TFE and PET are melt-processed in a continuous fashion. Postprocessing techniques including biaxial orientation and melt recrystallization were used to tune the crystal orientation of the PVDF-TFE layers, as well as achieve crystallinity in the PET layers through strain-induced crystallization and thermal annealing during the melt recrystallization step. A volume additive model was used to extract the effect of crystal orientation within the PVDF-TFE layers and revealed a significant enhancement in the modulus from 730 MPa in the as-extruded state (isotropic) to 840 MPa in the biaxially oriented state (on-edge) to 2230 MPa in the melt-recrystallized state (in-plane). Subsequently, in situ wide-angle X-ray scattering was used to observe the crystal structure evolution during uniaxial deformation in both the as-extruded and melt-recrystallized states. It is observed that the low-temperature ferroelectric PVDF-TFE crystal phase in the as-extruded state exhibits equatorial sharpening of the 110 and 200 crystal peaks during deformation, quantified using the Hermans orientation function, while in the melt-recrystallized state, an overall increase in the crystallinity occurs during deformation. Thus, we correlated the mechanical response (strain hardening) of the films to these respective evolved crystal structures and highlighted the ability to tailor mechanical response. With a better understanding of the structural evolution during deformation, it is possible to more fully characterize the structural response to handling during use of the high-barrier PVDF-TFE/PET multilayer films as commercial dielectrics and packaging materials.
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Affiliation(s)
- Alex M Jordan
- Center for Layered Polymeric Systems, Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
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24
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Substrate effects on crystal orientations and structures of poly(ethylene-ran-vinyl acetate) ultrathin films. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.06.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Molecular weight dependence of crystal pattern transitions of poly(ethylene oxide). CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-013-1273-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Yoon JG, Zin WC, Kim JH. Crystal orientations and structures of poly(ethylene-ran-vinyl acetate) films coated onto silicon substrates. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.04.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Li Y, Huang H, He T, Wang Z. Rhythmic Growth Combined with Lamellar Twisting Induces Poly(ethylene adipate) Nested Ring-Banded Structures. ACS Macro Lett 2012; 1:154-158. [PMID: 35578493 DOI: 10.1021/mz2000785] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Previously, poly(ε-caprolactone) (PCL) classical ring-banded spherulites with periodic twisted lamellae and nonclassical concentric ringed structures induced by rhythmic growth were obtained by modulating the competition between diffusion flux and spherulitic growth. In this study, the modulation of diffusion flux and spherulitic growth on ring-banded structures is further studied, and hierarchical nested ring-banded patterns with a banded structure nested in the ridge rings of the other concentric ringed structure are prepared during slow solvent evaporation in poly(ethylene adipate) (PEA) solution films. The structural characterizations reveal that the big concentric ringed structure derives from periodic variation of thicknesses and that the small inner banded structure consists of periodic twisted lamellae. A diffusion-induced rhythmic growth mechanism and an unbalanced surface stress induced lamellar twisting model are proposed to illustrate the formation of the big concentric and the inner banded structures, respectively.
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Affiliation(s)
- Yiguo Li
- State Key
Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049,
P. R. China
| | - Haiying Huang
- State Key
Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049,
P. R. China
| | - Tianbai He
- State Key
Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049,
P. R. China
| | - Zongbao Wang
- Ningbo Key Laboratory
of Polymer
Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R.
China
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28
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Yang JP, Liao Q, Zhou JJ, Jiang X, Wang XH, Zhang Y, Jiang SD, Yan SK, Li L. What Determines the Lamellar Orientation on Substrates? Macromolecules 2011. [DOI: 10.1021/ma102973w] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ju-Ping Yang
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qi Liao
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jian-Jun Zhou
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xi Jiang
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiao-Hong Wang
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yang Zhang
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shi-Dong Jiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shou-Ke Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lin Li
- Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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29
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Tong Q, Mecking S. Submicron films prepared from aqueous dispersions of nanoscale polymer crystals. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qiong Tong
- University of Konstanz, Chair of Chemical Materials Science, Department of Chemistry, Universitätsstr. 10, D‐78457 Konstanz, Germany
| | - Stefan Mecking
- University of Konstanz, Chair of Chemical Materials Science, Department of Chemistry, Universitätsstr. 10, D‐78457 Konstanz, Germany
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