1
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Poon L, Hum JR, Weiss RG. Ion-Transport Properties of Polydimethylsiloxane-Based Ionomers with Amidinium or Imidazolinium Alkyldithiocarbamate Pendant Groups in Low Dielectric Solvents or as Neat Liquids. J Phys Chem B 2022; 126:10481-10489. [DOI: 10.1021/acs.jpcb.2c05431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Louis Poon
- Department of Chemistry and Institute for Soft Matter Science and Metrology Georgetown University, Washington, D.C. 20057-1227, United States
| | - Jacob R. Hum
- Department of Chemistry and Institute for Soft Matter Science and Metrology Georgetown University, Washington, D.C. 20057-1227, United States
| | - Richard G. Weiss
- Department of Chemistry and Institute for Soft Matter Science and Metrology Georgetown University, Washington, D.C. 20057-1227, United States
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2
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Crystalline structure, molecular motion and photocarrier formation in thin films of monodisperse poly(3-hexylthiophene) with various molecular weights. Polym J 2022. [DOI: 10.1038/s41428-022-00713-0] [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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3
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Bai P, Ma M, Sui L, Guo Y. Nanoconfinement Controls Mechanical Properties of Elastomeric Thin Films. J Phys Chem Lett 2021; 12:8072-8079. [PMID: 34406018 DOI: 10.1021/acs.jpclett.1c01921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mastering mechanical properties of polymers at nanometer scale is highly demanded yet remains challenging. Pioneering advances determined Young's modulus in ultrathin polymer films and attained unprecedented results including rubbery stiffening. However, many viscoelastic properties such as dynamic mechanical behavior of freestanding nanoconfined polymer films are still unknown. Here we demonstrate striking changes of stiffness and the ratio between elastic and viscous responses in thin PDMS films, using a microvibrational system which enables direct measurements of dynamic stress-strain relation of freestanding films. The results show that elastic modulus is enhanced by a factor of 135 in 50 nm films than the bulk, while the viscous response substantially increases at strains >0.05 in 125 nm films. These observations exhibit significant alterations of viscoelasticity under nanoconfinement. With insights on the underlying mechanism of these results, this study is expected to provide new evidence toward gaining a comprehensive understanding of nanoconfinement effect of soft matter.
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Affiliation(s)
- Pei Bai
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mingchao Ma
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Li Sui
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yunlong Guo
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
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4
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Singh M, Hu M, Cang Y, Hsu HP, Therien-Aubin H, Koynov K, Fytas G, Landfester K, Kremer K. Glass Transition of Disentangled and Entangled Polymer Melts: Single-Chain-Nanoparticles Approach. Macromolecules 2020; 53:7312-7321. [PMID: 32921812 PMCID: PMC7482400 DOI: 10.1021/acs.macromol.0c00550] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/07/2020] [Indexed: 01/28/2023]
Abstract
We study the effect of entanglements on the glass transition of high molecular weight polymers, by the comparison of single-chain nanoparticles (SCNPs) and equilibrated melts of high-molecular weight polystyrene of identical molecular weight. SCNPs were prepared by electrospraying technique and characterized using scanning electron microscopy and atomic force microscopy techniques. Differential scanning calorimetry, Brillouin light spectroscopy, and rheological experiments around the glass transition were compared. In parallel, entangled and disentangled polymer melts were also compared under cooling from molecular dynamics simulations based on a bead-spring polymer model. While experiments suggest a small decrease in the glass transition temperature of films of nanoparticles in comparison to entangled melts, simulations do not observe any significant difference, despite rather different chain conformations.
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Affiliation(s)
| | - Minghan Hu
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Yu Cang
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Hsiao-Ping Hsu
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | | | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - George Fytas
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Kurt Kremer
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
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5
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Local Effects of Ring Topology Observed in Polymer Conformation and Dynamics by Neutron Scattering-A Review. Polymers (Basel) 2020; 12:polym12091884. [PMID: 32825628 PMCID: PMC7563567 DOI: 10.3390/polym12091884] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 11/24/2022] Open
Abstract
The physical properties of polymers depend on a range of both structural and chemical parameters, and in particular, on molecular topology. Apparently simple changes such as joining chains at a point to form stars or simply joining the two ends to form a ring can profoundly alter molecular conformation and dynamics, and hence properties. Cyclic polymers, as they do not have free ends, represent the simplest model system where reptation is completely suppressed. As a consequence, there exists a considerable literature and several reviews focused on high molecular weight cyclics where long range dynamics described by the reptation model comes into play. However, this is only one area of interest. Consideration of the conformation and dynamics of rings and chains, and of their mixtures, over molecular weights ranging from tens of repeat units up to and beyond the onset of entanglements and in both solution and melts has provided a rich literature for theory and simulation. Experimental work, particularly neutron scattering, has been limited by the difficulty of synthesizing well-characterized ring samples, and deuterated analogues. Here in the context of the broader literature we review investigations of local conformation and dynamics of linear and cyclic polymers, concentrating on poly(dimethyl siloxane) (PDMS) and covering a wide range of generally less high molar masses. Experimental data from small angle neutron scattering (SANS) and quasi-elastic neutron scattering (QENS), including Neutron Spin Echo (NSE), are compared to theory and computational predictions.
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6
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Effect of Metal-Ligand Coordination Complexes on Molecular Dynamics and Structure of Cross-Linked Poly(dimethylosiloxane). Polymers (Basel) 2020; 12:polym12081680. [PMID: 32731499 PMCID: PMC7465896 DOI: 10.3390/polym12081680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(dimethylosiloxane) (PDMS) cross-linked by metal-ligand coordination has a potential functionality for electronic devices applications. In this work, the molecular dynamics of bipyridine (bpy)–PDMS-MeCl2 (Me: Mn2+, Fe2+, Ni2+, and Zn2+) are investigated by means of broadband dielectric spectroscopy and supported by differential scanning calorimetry and density functional theory calculations. The study of molecular motions covered a broad range of temperatures and frequencies and was performed for the first time for metal-ligand cross-linked PDMS. It was found that the incorporation of bpy moieties into PDMS chain prevents its crystallization. The dielectric permittivity of studied organometallic systems was elevated and almost two times higher (ε′ ~4 at 1 MHz) than in neat PDMS. BpyPDMS-MeCl2 complexes exhibit slightly higher glass transition temperature and fragility as compared to a neat PDMS. Two segmental type relaxations (α and αac) were observed in dielectric studies, and their origin was discussed in relation to the molecular structure of investigated complexes. The αac relaxation was observed for the first time in amorphous metal-ligand complexes. It originates from the lower mobility of PDMS polymer chains, which are immobilized by metal-ligand coordination centers via bipyridine moieties.
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7
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Talik A, Tarnacka M, Dzienia A, Kaminska E, Kaminski K, Paluch M. High-Pressure Studies on the Chain and Segmental Dynamics of a Series of Poly(propylene glycol) Derivatives. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Andrzej Dzienia
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Ewa Kaminska
- Department of Pharmacognosy and Phytochemistry, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, Jagiellonska 4, 41-200 Sosnowiec, Poland
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8
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Huang S, Li H, Jiang S. Crystal structure and unique lamellar thickening for poly(l-lactide) induced by high pressure. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Shen J, Yildirim E, Li S, Caydamli Y, Pasquinelli MA, Tonelli AE. Role of Local Polymer Conformations on the Diverging Glass Transition Temperatures and Dynamic Fragilities of Isotactic-, Syndiotactic-, and Atactic-Poly(methyl methacrylate)s. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00434] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jialong Shen
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
| | - Erol Yildirim
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
| | - Shanshan Li
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
| | - Yavuz Caydamli
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
| | - Melissa A. Pasquinelli
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
| | - Alan E. Tonelli
- Fiber & Polymer Science Program and Department of Textile Engineering, Chemistry & Science, North Carolina State University, Raleigh, North Carolina 27695-8301, United States
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10
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Tarnacka M, Talik A, Kamińska E, Geppert-Rybczyńska M, Kaminski K, Paluch M. The Impact of Molecular Weight on the Behavior of Poly(propylene glycol) Derivatives Confined within Alumina Templates. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00209] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | - Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice,School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland
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11
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Arrighi V, Gagliardi S, Ganazzoli F, Higgins JS, Raffaini G, Tanchawanich J, Taylor J, Telling MTF. Effect of Chain Length and Topological Constraints on Segmental Relaxation in Cyclic PDMS. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00397] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valeria Arrighi
- Institute of Chemical Sciences, School of Engineering and Physical Science, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Simona Gagliardi
- Institute of Chemical Sciences, School of Engineering and Physical Science, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Fabio Ganazzoli
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Julia S. Higgins
- Chemical Engineering Department, Imperial College London, South Kensington
Campus, London SW7 2AZ, United Kingdom
| | - Giuseppina Raffaini
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Jeerachada Tanchawanich
- Institute of Chemical Sciences, School of Engineering and Physical Science, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Jenny Taylor
- Institute of Chemical Sciences, School of Engineering and Physical Science, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Mark T. F. Telling
- ISIS, Rutherford
Appleton Laboratory, Chilton, Didcot OX11 OQX, United Kingdom
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
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12
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Zhang J, Deubler R, Hartlieb M, Martin L, Tanaka J, Patyukova E, Topham PD, Schacher FH, Perrier S. Evolution of Microphase Separation with Variations of Segments of Sequence-Controlled Multiblock Copolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01831] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | | | | | | | - Elena Patyukova
- Aston Institute of Materials Research, Aston University, Aston Triangle, Birmingham B4 7ET, U.K
| | - Paul D. Topham
- Aston Institute of Materials Research, Aston University, Aston Triangle, Birmingham B4 7ET, U.K
| | | | - Sébastien Perrier
- Faculty of Pharmacy and
Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
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13
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Askar S, Li L, Torkelson JM. Polystyrene-Grafted Silica Nanoparticles: Investigating the Molecular Weight Dependence of Glass Transition and Fragility Behavior. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00079] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shadid Askar
- Department of Chemical and Biological Engineering and ‡Department of
Materials Science
and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Lingqiao Li
- Department of Chemical and Biological Engineering and ‡Department of
Materials Science
and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - John M. Torkelson
- Department of Chemical and Biological Engineering and ‡Department of
Materials Science
and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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14
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Zhang L, Elupula R, Grayson SM, Torkelson JM. Suppression of the Fragility-Confinement Effect via Low Molecular Weight Cyclic or Ring Polymer Topology. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02280] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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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15
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Xie SJ, Schweizer KS. Nonuniversal Coupling of Cage Scale Hopping and Collective Elastic Distortion as the Origin of Dynamic Fragility Diversity in Glass-Forming Polymer Liquids. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02272] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shi-Jie Xie
- Departments of Materials
Science and Chemistry, University of Illinois, 1304 West Green Street, Urbana, Illinois 61801, United States
| | - Kenneth S. Schweizer
- Departments of Materials
Science and Chemistry, University of Illinois, 1304 West Green Street, Urbana, Illinois 61801, United States
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16
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Zhang L, Marsiglio JA, Lan T, Torkelson JM. Dramatic Tunability of the Glass Transition Temperature and Fragility of Low Molecular Weight Polystyrene by Initiator Fragments Located at Chain Ends. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02704] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Lanhe Zhang
- Department of Materials Science and Engineering and ‡Department of
Chemical and Biological
Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - John A. Marsiglio
- Department of Materials Science and Engineering and ‡Department of
Chemical and Biological
Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Tian Lan
- Department of Materials Science and Engineering and ‡Department of
Chemical and Biological
Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - John M. Torkelson
- Department of Materials Science and Engineering and ‡Department of
Chemical and Biological
Engineering, Northwestern University, Evanston, Illinois 60208, United States
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17
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Kaminski K, Kipnusu WK, Adrjanowicz K, Mapesa EU, Iacob C, Jasiurkowska M, Wlodarczyk P, Grzybowska K, Paluch M, Kremer F. Comparative Study on the Molecular Dynamics of a Series of Polypropylene Glycols. Macromolecules 2013. [DOI: 10.1021/ma302611x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. Kaminski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007
Katowice, Poland
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - W. K. Kipnusu
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - K. Adrjanowicz
- NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan,
Poland
| | - E. U. Mapesa
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - C. Iacob
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - M. Jasiurkowska
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - P. Wlodarczyk
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - K. Grzybowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007
Katowice, Poland
| | - M. Paluch
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007
Katowice, Poland
| | - F. Kremer
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
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18
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Bormuth A, Henritzi P, Vogel M. Chain-Length Dependence of the Segmental Relaxation in Polymer Melts: Molecular Dynamics Simulation Studies on Poly(propylene oxide). Macromolecules 2010. [DOI: 10.1021/ma101721d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Bormuth
- Institut für Festkörperphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - P. Henritzi
- Institut für Festkörperphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - M. Vogel
- Institut für Festkörperphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
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19
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Miwa Y, Shimada S, Urakawa O, Nobukawa S. Origin of High Segmental Mobility at Chain Ends of Polystyrene. Macromolecules 2010. [DOI: 10.1021/ma1013644] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yohei Miwa
- Analytical Technology Laboratory, R & D Center, Mitsubishi Chemical Corpolation, 1, Toho-cho, Yokkaichi, Mie 510-8530, Japan
| | - Shigetaka Shimada
- Depaertment of Materials Science and Technology, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Osamu Urakawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Shogo Nobukawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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20
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Gerstl C, Schneider GJ, Pyckhout-Hintzen W, Allgaier J, Richter D, Alegría A, Colmenero J. Segmental and Normal Mode Relaxation of Poly(alkylene oxide)s Studied by Dielectric Spectroscopy and Rheology. Macromolecules 2010. [DOI: 10.1021/ma100384j] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christine Gerstl
- Institut für Festkörperforschung, Neutronenstreuung, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Gerald J. Schneider
- Institut für Festkörperforschung, Neutronenstreuung, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Wim Pyckhout-Hintzen
- Institut für Festkörperforschung, Neutronenstreuung, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Jürgen Allgaier
- Institut für Festkörperforschung, Neutronenstreuung, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Dieter Richter
- Institut für Festkörperforschung, Neutronenstreuung, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Angel Alegría
- Centro de Fisica de Materiales CSIC-UPV/EHU, Edificio Korta, 20018 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Fisica de Materiales CSIC-UPV/EHU, Edificio Korta, 20018 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
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21
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Stukalin EB, Douglas JF, Freed KF. Application of the entropy theory of glass formation to poly(α-olefins). J Chem Phys 2009; 131:114905. [DOI: 10.1063/1.3216109] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Hintermeyer J, Herrmann A, Kahlau R, Goiceanu C, Rössler EA. Molecular Weight Dependence of Glassy Dynamics in Linear Polymers Revisited. Macromolecules 2008. [DOI: 10.1021/ma8016794] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Hintermeyer
- Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - A. Herrmann
- Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - R. Kahlau
- Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - C. Goiceanu
- Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - E. A. Rössler
- Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany
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23
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Singh LP, Murthy SSN. Study of secondary relaxation in disordered plastic crystals of isocyanocyclohexane, cyanocyclohexane, and 1-cyanoadamantane. J Chem Phys 2008; 129:094501. [DOI: 10.1063/1.2961036] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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24
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Kunal K, Paluch M, Roland CM, Puskas JE, Chen Y, Sokolov AP. Polyisobutylene: A most unusual polymer. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21473] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Some insights into fragility as a function of thermodynamic parameters: From orientational to structural glass transitions. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.08.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Casalini R, Roland CM, Capaccioli S. Effect of chain length on fragility and thermodynamic scaling of the local segmental dynamics in poly(methylmethacrylate). J Chem Phys 2007; 126:184903. [PMID: 17508828 DOI: 10.1063/1.2728898] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Local segmental relaxation properties of poly(methylmethacrylate) (PMMA) of varying molecular weight are measured by dielectric spectroscopy and analyzed in combination with the equation of state obtained from PVT measurements. Significant variations of glass transition temperature and fragility with molecular weight are observed. In accord with the general properties of glass-forming materials, single molecular weight dependent scaling exponent gamma is sufficient to define the mean segmental relaxation time taualpha and its distribution. This exponent can be connected to the Gruneisen parameter and related thermodynamic quantities, thus demonstrating the interrelationship between dynamics and thermodynamics in PMMA. Changes in the relaxation properties ("dynamic crossover") are observed as a function of both temperature and pressure, with taualpha serving as the control parameter for the crossover. At longer taualpha another change in the dynamics is apparent, associated with a decoupling of the local segmental process from ionic conductivity.
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Affiliation(s)
- R Casalini
- Chemistry Department, George Mason University, Fairfax, Virginia 22030, USA
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Roland CM, Casalini R. Dynamics of Poly(cyclohexyl methacrylate): Neat and in Blends with Poly(α-methylstyrene). Macromolecules 2007. [DOI: 10.1021/ma0702849] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. M. Roland
- Naval Research Laboratory, Chemistry Division, Code 6120, Washington, DC 20375-5342, and Chemistry Department, George Mason University, Fairfax, Virginia 22030
| | - R. Casalini
- Naval Research Laboratory, Chemistry Division, Code 6120, Washington, DC 20375-5342, and Chemistry Department, George Mason University, Fairfax, Virginia 22030
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Wang S, Lu L, Yaszemski MJ. Bone-tissue-engineering material poly(propylene fumarate): correlation between molecular weight, chain dimensions, and physical properties. Biomacromolecules 2006; 7:1976-82. [PMID: 16768422 PMCID: PMC2530912 DOI: 10.1021/bm060096a] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Poly(propylene fumarate) (PPF) is an important biodegradable and cross-linkable polymer designed for bone-tissue-engineering applications. For the first time we report the extensive characterization of this biomaterial including molecular weight dependences of physical properties such as glass transition temperature Tg, thermal degradation temperature Td, density rho, melt viscosity eta0, hydrodynamic radius RH, and intrinsic viscosity [eta]. The temperature dependence of eta0 changes progressively with molecular weight, whereas it can be unified when the temperature is normalized to Tg. The plateau modulus and entanglement molecular weight Me have been obtained from the rheological master curves. A variety of chain microstructure parameters such as the Mark-Houwink-Sakurada constants K and alpha, characteristic ratio Cinfinity, unperturbed chain dimension r0(2)/M, packing lengthp, Kuhn length b, and tube diameter a have been deduced. Further correlation between the microstructure and macroscopic physical properties has been discussed in light of recent progress in polymer dynamics to supply a better understanding about this unsaturated polyester to advance its biomedical uses. The molecular weight dependence of Tg for six polymer species including PPF has been summarized to support that Me is irrelevant for the finite length effect on the glass transition, whereas surprisingly these polymers can be divided into two groups when their normalized Tg is plotted simply against Mw to indicate the deciding roles of inherent chain properties such as chain fragility, intermolecular cooperativity, and chain end mobility.
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Wang S, Lu L, Gruetzmacher JA, Currier BL, Yaszemski MJ. A Biodegradable and Cross-Linkable Multiblock Copolymer Consisting of Poly(propylene fumarate) and Poly(ε-caprolactone): Synthesis, Characterization, and Physical Properties. Macromolecules 2005. [DOI: 10.1021/ma050884c] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shanfeng Wang
- Tissue Engineering and Polymeric Biomaterials Laboratory, Department of Orthopedic Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905
| | - Lichun Lu
- Tissue Engineering and Polymeric Biomaterials Laboratory, Department of Orthopedic Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905
| | - James A. Gruetzmacher
- Tissue Engineering and Polymeric Biomaterials Laboratory, Department of Orthopedic Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905
| | - Bradford L. Currier
- Tissue Engineering and Polymeric Biomaterials Laboratory, Department of Orthopedic Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905
| | - Michael J. Yaszemski
- Tissue Engineering and Polymeric Biomaterials Laboratory, Department of Orthopedic Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905
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Miwa Y, Yamamoto K, Sakaguchi M, Sakai M, Makita S, Shimada S. Direct Detection of High Mobility around Chain Ends of Poly(methyl methacrylate) by the Spin-Labeling. Macromolecules 2005. [DOI: 10.1021/ma048287y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yohei Miwa
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Katsuhiro Yamamoto
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masato Sakaguchi
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masahiro Sakai
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Seiji Makita
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Shigetaka Shimada
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
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Ding Y, Novikov VN, Sokolov AP, Casalini R, Roland CM. Observation of Chain Dynamics in Depolarized Light Scattering Spectra of Polymers. Macromolecules 2004. [DOI: 10.1021/ma048718c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ding Y, Novikov VN, Sokolov AP, A. Cailliaux,, Dalle-Ferrier C, Alba-Simionesco C, Frick B. Influence of Molecular Weight on Fast Dynamics and Fragility of Polymers. Macromolecules 2004. [DOI: 10.1021/ma0492420] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | - B. Frick
- Institute Laue Langevin, 38042 Grenoble, France
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Robertson CG, Roland CM. Local segmental relaxation in bidisperse polystyrenes. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.20127] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Roland CM, Casalini R. Temperature dependence of local segmental motion in polystyrene and its variation with molecular weight. J Chem Phys 2003. [DOI: 10.1063/1.1581850] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Roland CM, Santangelo PG, Robertson CG, Ngai KL. Comment on “Direct determination of kinetic fragility indices of glassforming liquids by differential scanning calorimetry: Kinetic versus thermodynamic fragilities” [J. Chem. Phys. 117, 10184 (2002)]. J Chem Phys 2003. [DOI: 10.1063/1.1571814] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Roland CM, Casalini R, Santangelo P, Sekula M, Ziolo J, Paluch M. Chemical Structure and Local Segmental Dynamics in 1,2-Polybutadiene. Macromolecules 2003. [DOI: 10.1021/ma034416j] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. M. Roland
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
| | - R. Casalini
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
| | - P. Santangelo
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Sekula
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
| | - J. Ziolo
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Paluch
- Chemistry Division, Code 6120, Naval Research Lab, Washington, D.C. 20375-5342; Chemistry Department, George Mason University, Fairfax Virginia 22030; and Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
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37
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Roland CM, Casalini R. Temperature and Volume Effects on Local Segmental Relaxation in Poly(vinyl acetate). Macromolecules 2003. [DOI: 10.1021/ma025791z] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. M. Roland
- Naval Research Laboratory, Chemistry Division, Code 6120, Washington, D.C. 20375-5342
| | - R. Casalini
- Naval Research Laboratory, Chemistry Division, Code 6120, Washington, D.C. 20375-5342
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38
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Paluch M, Roland CM, Pawlus S. Temperature and pressure dependence of the α-relaxation in polymethylphenylsiloxane. J Chem Phys 2002. [DOI: 10.1063/1.1478767] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Schroeder MJ, Roland CM. Segmental Relaxation in End-Linked Poly(dimethylsiloxane) Networks. Macromolecules 2002. [DOI: 10.1021/ma011678h] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. J. Schroeder
- Department of Chemistry, United States Naval Academy, Annapolis, Maryland 21402
| | - C. M. Roland
- Chemistry Division, Code 6120, Naval Research Laboratory, Washington, D.C. 20375-5342
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40
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Santangelo PG, Roland CM, Chang T, Cho D, Roovers J. Dynamics near the Glass Temperature of Low Molecular Weight Cyclic Polystyrene. Macromolecules 2001. [DOI: 10.1021/ma011069+] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Brady RF. Clean hulls without poisons: Devising and testing nontoxic marine coatings. ACTA ACUST UNITED AC 2000. [DOI: 10.1007/bf02698394] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Roland CM, Santangelo PG, Plazek DJ, Bernatz KM. Creep of selenium near the glass temperature. J Chem Phys 1999. [DOI: 10.1063/1.479846] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Daniel SN, Niemeyer ED, Bright FV. Evidence for Chain Length Dependent Local Ordering Surrounding Perylene Dissolved in Poly(ethylene glycol). Macromolecules 1999. [DOI: 10.1021/ma990674y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sheila N. Daniel
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000
| | - Emily D. Niemeyer
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000
| | - Frank V. Bright
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000
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44
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Roland CM, Santangelo PG, Ngai KL. The application of the energy landscape model to polymers. J Chem Phys 1999. [DOI: 10.1063/1.479861] [Citation(s) in RCA: 120] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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46
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León C, Ngai KL, Roland CM. Relationship between the primary and secondary dielectric relaxation processes in propylene glycol and its oligomers. J Chem Phys 1999. [DOI: 10.1063/1.478006] [Citation(s) in RCA: 170] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Rizos AK, Ngai KL. Local Segmental Dynamics of Low Molecular Weight Polystyrene: New Results and Interpretation. Macromolecules 1998. [DOI: 10.1021/ma980613k] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Apostolos K. Rizos
- Department of Chemistry, University of Crete, and Foundation for Research & Technology-Hellas, P.O. Box 1527, Heraklion 71110, Greece
| | - K. L. Ngai
- Naval Research Laboratory, Washington, D.C. 20375-5320
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48
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Affiliation(s)
- P. G. Santangelo
- Chemistry Division, Code 6120, Naval Research Laboratory, Washington, D.C. 20375-5342
| | - C. M. Roland
- Chemistry Division, Code 6120, Naval Research Laboratory, Washington, D.C. 20375-5342
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Niemeyer ED, Bright FV. Effects of CO2Sorption on the Rotational Reorientation Dynamics of a Model Solute Dissolved in Molten Poly(dimethylsiloxane). Macromolecules 1998. [DOI: 10.1021/ma970335+] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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