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Androulaki K, Chrissopoulou K, Labardi M, Anastasiadis SH. Effect of interfacial interactions on static and dynamic behavior of hyperbranched polymers: Comparison between different layered nanoadditives. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123646] [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]
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Static and Dynamic Behavior of Polymer/Graphite Oxide Nanocomposites before and after Thermal Reduction. Polymers (Basel) 2021; 13:polym13071008. [PMID: 33805915 PMCID: PMC8036730 DOI: 10.3390/polym13071008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 12/19/2022] Open
Abstract
Nanocomposites of hyperbranched polymers with graphitic materials are investigated with respect to their structure and thermal properties as well as the dynamics of the polymer probing the effect of the different intercalated or exfoliated structure. Three generations of hyperbranched polyester polyols are mixed with graphite oxide (GO) and the favorable interactions between the polymers and the solid surfaces lead to intercalated structure. The thermal transitions of the confined chains are suppressed, whereas their dynamics show similarities and differences with the dynamics of the neat polymers. The three relaxation processes observed for the neat polymers are observed in the nanohybrids as well, but with different temperature dependencies. Thermal reduction of the graphite oxide in the presence of the polymer to produce reduced graphite oxide (rGO) reveals an increase in the reduction temperature, which is accompanied by decreased thermal stability of the polymer. The de-oxygenation of the graphite oxide leads to the destruction of the intercalated structure and to the dispersion of the rGO layers within the polymeric matrix because of the modification of the interactions between the polymer chains and the surfaces. A significant increase in the conductivity of the resulting nanocomposites, in comparison to both the polymers and the intercalated nanohybrids, indicates the formation of a percolated rGO network.
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Androulaki K, Chrissopoulou K, Prevosto D, Labardi M, Anastasiadis SH. Structure and Dynamics of Biobased Polyester Nanocomposites. Biomacromolecules 2019; 20:164-176. [PMID: 30485746 DOI: 10.1021/acs.biomac.8b01231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The structure and the dynamics of two bio-based polyester polyols are investigated in the bulk and close to surfaces in polymer/layered silicate nanocomposites. The morphology of the neat polymers as well as the structure of the nanohybrids are investigated with X-ray diffraction and their thermal properties are studied by differential scanning calorimetry. One of the investigated polyesters is amorphous, whereas the second one is a semicrystalline polymer with intriguing thermal behavior. Hybrids have been synthesized over a broad range of compositions and intercalated structures are always obtained. The thermal transitions in the nanocomposites are observed only when the polymers are in excess outside the completely filled galleries. The glass transition, whenever it can be resolved, appears insensitive to the presence of the inorganic material, whereas the way the crystallization takes place depends on the composition of the nanohybrid. Dielectric relaxation spectroscopy was utilized to study the polymer dynamics. It revealed multiple relaxation processes for the neat polymers both below and above their glass transition temperatures, whereas in the nanocomposites, similarities and differences are observed depending on the specific mode of the dynamic process.
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Affiliation(s)
- Krystalenia Androulaki
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , P.O. Box 1527, 711 10 Heraklion Crete , Greece.,Department of Chemistry , University of Crete , P.O. Box 2208, 710 03 Heraklion Crete , Greece
| | - Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , P.O. Box 1527, 711 10 Heraklion Crete , Greece
| | - Daniele Prevosto
- CNR-IPCF, Department of Physics , University of Pisa , 56126 Pisa , Italy
| | | | - Spiros H Anastasiadis
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , P.O. Box 1527, 711 10 Heraklion Crete , Greece.,Department of Chemistry , University of Crete , P.O. Box 2208, 710 03 Heraklion Crete , Greece
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Bollas S, Chrissopoulou K, Andrikopoulos KS, Voyiatzis GA, Anastasiadis SH. Polymer Conformation under Confinement. Polymers (Basel) 2017; 9:E73. [PMID: 30970750 PMCID: PMC6432019 DOI: 10.3390/polym9020073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 01/28/2017] [Accepted: 02/13/2017] [Indexed: 11/27/2022] Open
Abstract
The conformation of polymer chains under confinement is investigated in intercalated polymer/layered silicate nanocomposites. Hydrophilic poly(ethylene oxide)/sodium montmorillonite, PEO/Na⁺-MMT, hybrids were prepared utilizing melt intercalation with compositions where the polymer chains are mostly within the ~1 nm galleries of the inorganic material. The polymer chains are completely amorphous in all compositions even at temperatures where the bulk polymer is highly crystalline. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) is utilized to investigate the conformation of the polymer chains over a broad range of temperatures from below to much higher than the bulk polymer melting temperature. A systematic increase of the gauche conformation relatively to the trans is found with decreasing polymer content both for the C⁻C and the C⁻O bonds that exist along the PEO backbone indicating that the severe confinement and the proximity to the inorganic surfaces results in a more disordered state of the polymer.
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Affiliation(s)
- Stavros Bollas
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
| | - Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
| | - Konstantinos S Andrikopoulos
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas, P.O. Box 1414, 265 04 Patras, Greece.
| | - George A Voyiatzis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas, P.O. Box 1414, 265 04 Patras, Greece.
| | - Spiros H Anastasiadis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion Crete, Greece.
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Morphological evolution and mechanical property enhancement of natural rubber/polypropylene blend through compatibilization by nanoclay. J Appl Polym Sci 2016. [DOI: 10.1002/app.44574] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Baklavaridis A, Tsiaoussis I, Panayiotou C, Zuburtikudis I. Effect of tungsten disulfide nanotubes on the thermomechanical properties of polypropylene- graft-maleic anhydride nanocomposites. J Appl Polym Sci 2016. [DOI: 10.1002/app.43887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Apostolos Baklavaridis
- Department of Mechanical and Industrial Design Engineering; TEI of Western Macedonia; Kozani 50100 Greece
- Department of Chemical Engineering; Aristotle University of Thessaloniki; Thessaloniki 54124 Greece
| | - Ioannis Tsiaoussis
- Department of Physics; Aristotle University of Thessaloniki; Thessaloniki 54124 Greece
| | - Costas Panayiotou
- Department of Chemical Engineering; Aristotle University of Thessaloniki; Thessaloniki 54124 Greece
| | - Ioannis Zuburtikudis
- Department of Mechanical and Industrial Design Engineering; TEI of Western Macedonia; Kozani 50100 Greece
- Currently on a Leave of Absence and with the Department of Chemical and Petroleum Engineering; United Arab Emirates University; Al Ain U.A.E
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Orientation of Anisometric Layered Silicate Particles in Uncompatibilized and Compatibilized Polymer Melts Under Shear Flow: A Dissipative Particle Dynamics Study. MACROMOL THEOR SIMUL 2015. [DOI: 10.1002/mats.201500045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Omara SS, Abdel Rehim MH, Ghoneim A, Madkour S, Thünemann AF, Turky G, Schönhals A. Structure–Property Relationships of Hyperbranched Polymer/Kaolinite Nanocomposites. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01693] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shereen Shabaan Omara
- Bundesanstalt
für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | | | | | - Sherif Madkour
- Bundesanstalt
für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Andreas F. Thünemann
- Bundesanstalt
für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | | | - Andreas Schönhals
- Bundesanstalt
für Materialforschung und−prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
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Androulaki K, Chrissopoulou K, Prevosto D, Labardi M, Anastasiadis SH. Dynamics of Hyperbranched Polymers under Confinement: A Dielectric Relaxation Study. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12387-12398. [PMID: 25603491 DOI: 10.1021/am507571y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The effect of severe confinement on the dynamics of three different generations of hyperbranched polyesters of the Boltorn family is investigated by dielectric relaxation spectroscopy (DRS). The polymer chains are intercalated within the galleries of natural montmorillonite (Na+-MMT), thus forming 1 nm polymer films confined between solid walls. The structure of the nanocomposites is studied with X-ray diffraction and the thermal behavior of the polymers in bulk and under confinement is determined by differential scanning calorimetry. The glass transition temperatures of the polymers show a clear dependence on the generation whereas the transition is completely suppressed when all the polymer chains are intercalated. The dynamic investigation of the bulk polymers reveals two sub-Tg processes, with similar behavior for the three polymers with the segmental relaxation observed above the Tg of each polymer. For the nanocomposites, where all the polymer chains are severely confined, the dynamics show significant differences compared to that of the bulk polymers. The sub-Tg processes are similar for the three generations but significantly faster and with weaker temperature dependence than those in the bulk. The segmental process appears at temperatures below the bulk polymer Tg, it exhibits an Arrhenius temperature dependence and shows differences for the three generations. A slow process that appears at higher temperatures is due to interfacial polarization.
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Affiliation(s)
- Krystalenia Androulaki
- †Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion Crete, Greece
- ‡Department of Chemistry, University of Crete, 710 03 Heraklion Crete, Greece
| | - Kiriaki Chrissopoulou
- †Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion Crete, Greece
| | - Daniele Prevosto
- §CNR-IPCF, Department of Physics, University of Pisa, Pisa, Italy
| | | | - Spiros H Anastasiadis
- †Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion Crete, Greece
- ‡Department of Chemistry, University of Crete, 710 03 Heraklion Crete, Greece
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Chrissopoulou K, Anastasiadis SH. Effects of nanoscopic-confinement on polymer dynamics. SOFT MATTER 2015; 11:3746-3766. [PMID: 25869864 DOI: 10.1039/c5sm00554j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The static and dynamic behavior of polymers in confinement close to interfaces can be very different from that in the bulk. Among the various geometries, intercalated nanocomposites, in which polymer films of ∼1 nm thickness reside between the parallel inorganic surfaces of layered silicates in a well-ordered multilayer, offer a unique avenue for the investigation of the effects of nanoconfinement on polymer structure and dynamics by utilizing conventional analytical techniques and macroscopic specimens. In this article, we provide a review of research activities mainly in our laboratory on polymer dynamics under severe confinement utilizing different polymer systems: polar and non-polar polymers were mixed with hydrophilic or organophilic silicates, respectively, whereas hyperbranched polymers were studied in an attempt to probe the effect of polymer-surface interactions by altering the number and the kinds of functional groups in the periphery of the branched polymers. The polymer dynamics was probed by quasielastic neutron scattering and dielectric relaxation spectroscopy and was compared with that of the polymers in the bulk. In all cases, very local sub-Tg processes related to the motion of side and/or end groups as well as the segmental α-relaxation were identified with distinct differences recorded between the bulk and the confined systems. Confinement was found not to affect the very local motion in the case of the linear chains whereas it made it easier for hyperbranched polymers due to modifications of the hydrogen bond network. The segmental relaxation in confinement becomes faster than that in the bulk, exhibits Arrhenius temperature dependence and is observed even below the bulk Tg due to reduced cooperativity in the confined systems.
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Affiliation(s)
- Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P. O. Box 1527, 711 10 Heraklion Crete, Greece.
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Pandey P, Mohanty S, Nayak SK. A Candid Approach to Clay Modification via Dehydroxylation for Nanocomposites Application: Investigation of Degradation Kinetics, Reaction Model, and Flammability. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Priyanka Pandey
- Central Institute of Plastics Engineering and Technology; Chennai 600 032 India
| | - Smita Mohanty
- Central Institute of Plastics Engineering and Technology; Chennai 600 032 India
| | - Sanjay K Nayak
- Central Institute of Plastics Engineering and Technology; Chennai 600 032 India
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Pandey P, Mohanty S, Nayak SK. Influence of thermally induced, dehydroxylated nanoclay on polymer nanocomposites. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0094-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pandey P, Mohanty S, Nayak SK. Improved flame retardancy and thermal stability of polymer/clay nanocomposites, with the incorporation of multiwalled carbon nanotube as secondary filler. HIGH PERFORM POLYM 2014. [DOI: 10.1177/0954008314531802] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, the combined effect of multiwalled carbon nanotube (MWNT) and organoclay in improving the flame retardancy and thermal stability was evaluated. A novel ternary nanocomposite (polymer/organoclay/MWNT) material based on polypropylene, organoclay and MWNTs has been developed. Higher degree of delamination of clay layers in ternary nanocomposites as compared to polymer/clay nanocomposites via x-ray diffraction and transmission electron microscopy analyses was evident, and also the network structure of MWNT and clay was evident. In ternary nanocomposites, the more intact network structure was also evident from the rheological assessment. Improved thermal stability and flame-retardancy characteristics were evident from thermogravimetric and cone calorimeter analyses. Also the scanning electron microscopic micrographs of char residue revealed a correlation with the cone calorimeter. The role of degree of graphitization of MWNTs on the flammability of nanocomposites was also confirmed from the analysis.
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Affiliation(s)
- Priyanka Pandey
- Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
| | - Smita Mohanty
- Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
| | - Sanjay K. Nayak
- Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
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Boufassa S, Doufnoune R, Hellati A, Haddaoui N, Cagiao ME. Effect of compatibilizing agents on the physical properties of iPP/HDPE organoclay blends. JOURNAL OF POLYMER ENGINEERING 2013. [DOI: 10.1515/polyeng-2013-0048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Blends of isotactic polypropylene (iPP) and high density polyethylene (HDPE), with and without compatibilizers and with different organoclay amounts (1%, 3%, and 5%), were systematically investigated to assess the effect of the additives on the crystallinity of the blends, as well as the correlation between the microhardness, H and the Young’s modulus E. The compatibilizers used were: maleic anhydride grafted styrene ethylene butadiene styrene (SEBS-g-MAH), maleic anhydride grafted polyethylene (PE-g-MAH), maleic anhydride grafted polypropylene (PP-g-MAH), ethylene propylene diene monomer (EPDM), and maleic anhydride grafted EPDM (EPDM-g-MAH). The thermal properties and crystallization behavior were determined by differential scanning calorimetry (DSC) and wide angle X-ray scattering (WAXS). Macro- and micromechanical properties were also investigated. The results obtained showed that the addition of clay slightly increases the crystallinity αWAXS of the blends. However, the hardness H decreases enormously only by adding 1 wt% of clay. With higher clay amounts, H increases again. The relationship between the Young’s modulus E and the hardness H for all the studied blends was found to be somewhat higher than the one obtained for polyethylene (PE) samples with different morphologies.
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Fotiadou S, Karageorgaki C, Chrissopoulou K, Karatasos K, Tanis I, Tragoudaras D, Frick B, Anastasiadis SH. Structure and Dynamics of Hyperbranched Polymer/Layered Silicate Nanocomposites. Macromolecules 2013. [DOI: 10.1021/ma302405q] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Fotiadou
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - C. Karageorgaki
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - K. Chrissopoulou
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
| | - K. Karatasos
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - I. Tanis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - D. Tragoudaras
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - B. Frick
- Institut Laue Langevin (ILL), 6 rue Jules Horowitz, F38042 Grenoble, France
| | - S. H. Anastasiadis
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion
Crete, Greece
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Liu B, Shangguan Y, Song Y, Zheng Q. Influences of compatibilizers on rheology and mechanical properties of propylene random copolymer/styrene-ethylene-butylene-styrene block copolymer/organic-montmorillonite nanocomposites. J Appl Polym Sci 2012. [DOI: 10.1002/app.38637] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Li Q, Yang Q, Huang Y, Chen G, Lv Y. Effect of Compatibilizer Content on the Shear and Extensional Rheology of Polypropylene/Clay Nanocomposites. J MACROMOL SCI B 2012. [DOI: 10.1080/00222348.2012.659638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Qiang Li
- a College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University , Chengdu , China
| | - Qi Yang
- a College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University , Chengdu , China
| | - Yajiang Huang
- a College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University , Chengdu , China
| | - Guangling Chen
- a College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University , Chengdu , China
| | - Yadong Lv
- a College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University , Chengdu , China
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Chrissopoulou K, Andrikopoulos KS, Fotiadou S, Bollas S, Karageorgaki C, Christofilos D, Voyiatzis GA, Anastasiadis SH. Crystallinity and Chain Conformation in PEO/Layered Silicate Nanocomposites. Macromolecules 2011. [DOI: 10.1021/ma201711r] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece
| | - K. S. Andrikopoulos
- Physics Division, School of Technology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - S. Fotiadou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - S. Bollas
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece
| | - C. Karageorgaki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - D. Christofilos
- Physics Division, School of Technology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - G. A. Voyiatzis
- Institute of Chemical Engineering & High Temperature Chemical Processes, Foundation for Research and Technology - Hellas, P.O. Box 1414, 265 04 Patras, Greece
| | - S. H. Anastasiadis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion Crete, Greece
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Fotiadou S, Chrissopoulou K, Frick B, Anastasiadis SH. Structure and dynamics of polymer chains in hydrophilic nanocomposites. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.21974] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Manzi-Nshuti C, Songtipya P, Manias E, Jimenez-Gasco MDM, Hossenlopp JM, Wilkie CA. Polymer nanocomposites using zinc aluminum and magnesium aluminum oleate layered double hydroxides: Effects of the polymeric compatibilizer and of composition on the thermal and fire properties of PP/LDH nanocomposites. Polym Degrad Stab 2009. [DOI: 10.1016/j.polymdegradstab.2009.07.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Xu L, Nakajima H, Manias E, Krishnamoorti R. Tailored Nanocomposites of Polypropylene with Layered Silicates. Macromolecules 2009. [DOI: 10.1021/ma9002853] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Xu
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, Polymer Nanostructures Laboratory—CSPS, A Penn State Center of Excellence, The Pennsylvania State University, University Park, Pennsylvania 16802, and Department of Chemistry, University of Houston, Houston, Texas 77204
| | - Hiroyoshi Nakajima
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, Polymer Nanostructures Laboratory—CSPS, A Penn State Center of Excellence, The Pennsylvania State University, University Park, Pennsylvania 16802, and Department of Chemistry, University of Houston, Houston, Texas 77204
| | - Evangelos Manias
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, Polymer Nanostructures Laboratory—CSPS, A Penn State Center of Excellence, The Pennsylvania State University, University Park, Pennsylvania 16802, and Department of Chemistry, University of Houston, Houston, Texas 77204
| | - Ramanan Krishnamoorti
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, Polymer Nanostructures Laboratory—CSPS, A Penn State Center of Excellence, The Pennsylvania State University, University Park, Pennsylvania 16802, and Department of Chemistry, University of Houston, Houston, Texas 77204
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