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1
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Zhou J, Liu Z, Heng Z, Zhang H, He J, Ge Y, Chen Y, Zou H, Liang M. Utilizing the “Dangling Group Effect” Caused by the Cross-Linked Network Topology Transformation to Prepare High-Performance and Deformable Resins and Composites. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ji Zhou
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Zhuodong Liu
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Zhengguang Heng
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Haoruo Zhang
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Junliang He
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Ying Ge
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Yang Chen
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Huawei Zou
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Mei Liang
- The State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
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2
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Soles CL, Burns AB, Ito K, Chan EP, Douglas JF, Wu J, Yee AF, Shih YT, Huang L, Dimeo RM, Tyagi M. Why Enhanced Subnanosecond Relaxations Are Important for Toughness in Polymer Glasses. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02574] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Christopher L. Soles
- NIST Materials Science and Engineering Division, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Adam B. Burns
- NIST Materials Science and Engineering Division, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Kanae Ito
- NIST Materials Science and Engineering Division, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Edwin P. Chan
- NIST Materials Science and Engineering Division, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Jack F. Douglas
- NIST Materials Science and Engineering Division, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Jinhuang Wu
- Macromolecular Science and Engineering Program, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Albert F. Yee
- Department of Chemical and Biological Engineering, University of California, Irvine, California 92697, United States
| | - Yueh-Ting Shih
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Liping Huang
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Robert M. Dimeo
- NIST Center for Neutron Research, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Madhusudan Tyagi
- NIST Center for Neutron Research, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
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3
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Seo JS, Jeon HT, Han TH. Effects of blend composition on the morphologies and physical properties of polycarbonate/acrylonitrile‐butadiene‐styrene blends. J Appl Polym Sci 2020. [DOI: 10.1002/app.50404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jae Sik Seo
- Department of Organic and Nano Engineering Hanyang University Seoul Republic of Korea
- Interior System Plastic Materials Development Team Material Development Center, Hyundai Motor Company Hwaseong Republic of Korea
| | - Ho Tak Jeon
- Interior System Plastic Materials Development Team Material Development Center, Hyundai Motor Company Hwaseong Republic of Korea
| | - Tae Hee Han
- Department of Organic and Nano Engineering Hanyang University Seoul Republic of Korea
- Human‐Tech Convergence Program Hanyang University Seoul Republic of Korea
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4
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Reyes LQ, Swan SR, Gan H, Seraji SM, Zhang J, Varley RJ. The role of β relaxations in controlling compressive properties in hyperbranched polymer-modified epoxy networks. Polym J 2020. [DOI: 10.1038/s41428-020-00433-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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5
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Vuković F, Swan SR, Reyes LQ, Varley RJ, Walsh TR. Beyond the ring flip: A molecular signature of the glass–rubber transition in tetrafunctional epoxy resins. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122893] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Reyes LQ, Zhang J, Dao B, Nguyen DL, Varley RJ. Subtle variations in the structure of crosslinked epoxy networks and the impact upon mechanical and thermal properties. J Appl Polym Sci 2020. [DOI: 10.1002/app.48874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Larry Q. Reyes
- Carbon Nexus at the Institute for Frontier Materials, Deakin University Waurn Ponds Victoria 3216 Australia
| | - Jane Zhang
- Carbon Nexus at the Institute for Frontier Materials, Deakin University Waurn Ponds Victoria 3216 Australia
| | - Buu Dao
- CSIRO Manufacturing, Bag 10, Clayton MDC Victoria 3169 Australia
| | - Duc L. Nguyen
- Carbon Nexus at the Institute for Frontier Materials, Deakin University Waurn Ponds Victoria 3216 Australia
| | - Russell J. Varley
- Carbon Nexus at the Institute for Frontier Materials, Deakin University Waurn Ponds Victoria 3216 Australia
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7
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Synthesis of tri‐aryl ketone amine isomers and their cure with epoxy resins. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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8
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Varley RJ, Dao B, Nguyen T, Lee S, Nishino T. Effect of aromatic substitution on the cure reaction and network properties of anhydride cured triphenyl ether tetraglycidyl epoxy resins. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Russell J. Varley
- Institute for Frontier Materials Deakin University Waurn Ponds Victoria 3216 Australia
| | - Buu Dao
- CSIRO Manufacturing Clayton South Victoria 3169 Australia
| | - Tri Nguyen
- CSIRO Manufacturing Clayton South Victoria 3169 Australia
| | - Sunglin Lee
- Department of Chemical Science and Engineering, Graduate School of Engineering Kobe University 1‐1 Rokkodai Nada‐ku Kobe 657‐8501 Japan
| | - Takashi Nishino
- Department of Chemical Science and Engineering, Graduate School of Engineering Kobe University 1‐1 Rokkodai Nada‐ku Kobe 657‐8501 Japan
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9
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Varley RJ, Dao B, Tucker S, Christensen S, Wiggins J, Dingemans T, Vogel W, Marchetti M, Madzarevic Z. Effect of aromatic substitution on the kinetics and properties of epoxy cured tri‐phenylether amines. J Appl Polym Sci 2019. [DOI: 10.1002/app.47383] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Russell J. Varley
- Institute for Frontier Materials, Deakin University Waurn Ponds Victoria 3216 Australia
| | - Buu Dao
- CSIRO Manufacturing Clayton South Victoria 3169 Australia
| | - Sam Tucker
- Boeing Research and Technology the Boeing Company St Louis
| | | | - Jeffrey Wiggins
- School of Polymer Science and Engineering University of Southern Mississippi Mississippi
| | - Theo Dingemans
- Department of Applied Physical Sciences University of North Carolina North Carolina
| | - Wouter Vogel
- Department of Aerospace Engineering Technical University of Delft Delft the Netherlands
| | - Martino Marchetti
- Department of Aerospace Engineering Technical University of Delft Delft the Netherlands
| | - Zeljka Madzarevic
- Department of Aerospace Engineering Technical University of Delft Delft the Netherlands
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10
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Misasi JM, Jin Q, Knauer KM, Morgan SE, Wiggins JS. Hybrid POSS-Hyperbranched polymer additives for simultaneous reinforcement and toughness improvements in epoxy networks. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Tu J, Tucker SJ, Christensen S, Sayed AR, Jarrett WL, Wiggins JS. Phenylene Ring Motions in Isomeric Glassy Epoxy Networks and Their Contributions to Thermal and Mechanical Properties. Macromolecules 2015. [DOI: 10.1021/ma5022506] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianwei Tu
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Samuel J. Tucker
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Stephen Christensen
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Abdelwahed R. Sayed
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - William L. Jarrett
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Jeffrey S. Wiggins
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
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12
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Xia Z, Trexler M, Wu F, Jean YC, Van Horn JD. Free-volume hole relaxation in molecularly oriented glassy polymers. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:022603. [PMID: 25353498 DOI: 10.1103/physreve.89.022603] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Indexed: 06/04/2023]
Abstract
The free-volume hole relaxation in polycarbonate and poly(methyl methacrylate) with different levels of molecular orientation was studied by positron annihilation lifetime spectroscopy at variable pressures. The molecular orientation was achieved through a simple shear process performed at different temperatures and extrusion rates. It has been demonstrated that the β relaxation is largely responsible for the free-volume hole anisotropy after simple shear orientation. Upon the removal of mechanical force, the deformation of the free volume is mostly reversible at temperatures much lower than the glass transition. No strong correlation between macroscopic deformation and the free-volume hole deformation was found regardless of molecular orientation.
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Affiliation(s)
- Zhiyong Xia
- The Johns Hopkins University, Applied Physics Laboratory, Laurel, Maryland 20723, USA
| | - Morgana Trexler
- The Johns Hopkins University, Applied Physics Laboratory, Laurel, Maryland 20723, USA
| | - Fei Wu
- University of Missouri-Kansas City, Department of Chemistry, Kansas City, Missouri 64110, USA
| | - Yan-Ching Jean
- University of Missouri-Kansas City, Department of Chemistry, Kansas City, Missouri 64110, USA
| | - J David Van Horn
- University of Missouri-Kansas City, Department of Chemistry, Kansas City, Missouri 64110, USA
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van Breemen LCA, Engels TAP, Klompen ETJ, Senden DJA, Govaert LE. Rate- and temperature-dependent strain softening in solid polymers. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23199] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Singh M, Schaefer J. Chain packing in glassy polymers by natural-abundance 13C-13C spin diffusion using 2D centerband-only detection of exchange. J Am Chem Soc 2011; 133:2626-31. [PMID: 21306158 DOI: 10.1021/ja109104f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The proximities of specific subgroups of nearest-neighbor chains in glassy polymers are revealed by distance-dependent (13)C-(13)C dipolar couplings and spin diffusion. The measurement of such proximities is practical even with natural-abundance levels of (13)C using a 2D version of centerband-only detection of exchange (CODEX). Two-dimensional CODEX is a relaxation-compensated experiment that avoids the problems associated with variations in T(1)(C)'s due to dynamic site heterogeneity in the glass. Isotropic chemical shifts are encoded in the t(1) preparation times before and after mixing, and variations in T(2)'s are compensated by an S(0) reference (no mixing). Data acquisition involves acquisition of an S(0) reference signal on alternate scans, and the active control of power amplifiers, to achieve stability and accuracy over long accumulation times. The model system to calibrate spin diffusion is the polymer itself. For a mixing time of 200 ms, only (13)C-(13)C pairs separated by one or two bonds (2.5 Å) show cross peaks, which therefore identify reference intrachain proximities. For a mixing time of 1200 ms, 5 Å interchain proximities appear. The resulting cross peaks are used in a simple and direct way to compare nonrandom chain packing for two commercial polycarbonates with decidedly different mechanical properties.
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Affiliation(s)
- Manmilan Singh
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA
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15
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Alegría A, Mitxelena O, Colmenero J. On the Molecular Motions Originating from the Dielectric γ-Relaxation of Bisphenol-A Polycarbonate. Macromolecules 2006. [DOI: 10.1021/ma0520545] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angel Alegría
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Olatz Mitxelena
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Juan Colmenero
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
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16
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Lee JA, Yoo SH, Jho JY, Lee JC. Synthesis and characterization of alternating block copolycarbonates containing constituent groups of polysulfone. Macromol Res 2003. [DOI: 10.1007/bf03218973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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