1
|
Stanley J, Xanthopoulou E, Zemljič LF, Klonos PA, Kyritsis A, Lambropoulou DA, Bikiaris DN. Fabrication of Poly(ethylene furanoate)/Silver and Titanium Dioxide Nanocomposites with Improved Thermal and Antimicrobial Properties. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1606. [PMID: 38612120 PMCID: PMC11012300 DOI: 10.3390/ma17071606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024]
Abstract
Poly(ethylene furanoate) (PEF)-based nanocomposites were fabricated with silver (Ag) and titanium dioxide (TiO2) nanoparticles by the in-situ polymerization method. The importance of this research work is to extend the usage of PEF-based nanocomposites with improved material properties. The PEF-Ag and PEF-TiO2 nanocomposites showed a significant improvement in color concentration, as determined by the color colorimeter. Scanning electron microscopy (SEM) photographs revealed the appearance of small aggregates on the surface of nanocomposites. According to crystallinity investigations, neat PEF and nanocomposites exhibit crystalline fraction between 0-6%, whereas annealed samples showed a degree of crystallinity value above 25%. Combining the structural and molecular dynamics observations from broadband dielectric spectroscopy (BDS) measurements found strong interactions between polymer chains and nanoparticles. Contact angle results exhibited a decrease in the wetting angle of nanocomposites compared to neat PEF. Finally, antimicrobial studies have been conducted, reporting a significant rise in inhibition of over 15% for both nanocomposite films against gram-positive and gram-negative bacteria. From the overall results, the synthesized PEF-based nanocomposites with enhanced thermal and antimicrobial properties may be optimized and utilized for the secondary packaging (unintended food-contact) materials.
Collapse
Affiliation(s)
- Johan Stanley
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece; (J.S.); (E.X.)
| | - Eleftheria Xanthopoulou
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece; (J.S.); (E.X.)
| | - Lidija Fras Zemljič
- Faculty of Mechanical Engineering, University of Maribor, SI-2000 Maribor, Slovenia;
| | - Panagiotis A. Klonos
- Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780 Athens, Greece; (P.A.K.); (A.K.)
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780 Athens, Greece; (P.A.K.); (A.K.)
| | - Dimitra A. Lambropoulou
- Laboratory of Environmental Pollution Control, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, GR-57001 Thessaloniki, Greece
| | - Dimitrios N. Bikiaris
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece; (J.S.); (E.X.)
| |
Collapse
|
2
|
Stanley J, Terzopoulou Z, Klonos PA, Zamboulis A, Xanthopoulou E, Koltsakidis S, Tzetzis D, Zemljič LF, Lambropoulou DA, Kyritsis A, Papageorgiou GZ, Bikiaris DN. Effect of Monomer Type on the Synthesis and Properties of Poly(Ethylene Furanoate). Polymers (Basel) 2023; 15:2707. [PMID: 37376353 DOI: 10.3390/polym15122707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 05/31/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
This work aimed to produce bio-based poly(ethylene furanoate) (PEF) with a high molecular weight using 2,5-furan dicarboxylic acid (FDCA) or its derivative dimethyl 2,5-furan dicarboxylate (DMFD), targeting food packaging applications. The effect of monomer type, molar ratios, catalyst, polycondensation time, and temperature on synthesized samples' intrinsic viscosities and color intensity was evaluated. It was found that FDCA is more effective than DMFD in producing PEF with higher molecular weight. A sum of complementary techniques was employed to study the structure-properties relationships of the prepared PEF samples, both in amorphous and semicrystalline states. The amorphous samples exhibited an increase in glass transition temperature of 82-87 °C, and annealed samples displayed a decrease in crystallinity with increasing intrinsic viscosity, as analyzed by differential scanning calorimetry and X-ray diffraction. Dielectric spectroscopy showed moderate local and segmental dynamics and high ionic conductivity for the 2,5-FDCA-based samples. The spherulite size and nuclei density of samples improved with increased melt crystallization and viscosity, respectively. The hydrophilicity and oxygen permeability of the samples were reduced with increased rigidity and molecular weight. The nanoindentation test showed that the hardness and elastic modulus of amorphous and annealed samples is higher at low viscosities due to high intermolecular interactions and degree of crystallinity.
Collapse
Affiliation(s)
- Johan Stanley
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Zoi Terzopoulou
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Panagiotis A Klonos
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Department of Physics, Zografou Campus, National Technical University of Athens, 15780 Athens, Greece
| | - Alexandra Zamboulis
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | | | - Savvas Koltsakidis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14 km Thessaloniki, 57001 N. Moudania, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14 km Thessaloniki, 57001 N. Moudania, Greece
| | - Lidija Fras Zemljič
- Faculty of Mechanical Engineering, University of Maribor, SI-2000 Maribor, Slovenia
| | - Dimitra A Lambropoulou
- Laboratory of Environmental Pollution Control, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, GR-570 01 Thessaloniki, Greece
| | - Apostolos Kyritsis
- Department of Physics, Zografou Campus, National Technical University of Athens, 15780 Athens, Greece
| | - George Z Papageorgiou
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
- Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| |
Collapse
|
3
|
Paszkiewicz S, Irska I, Zubkiewicz A, Walkowiak K, Rozwadowski Z, Dryzek J, Linares A, Nogales A, Ezquerra TA. Supramolecular structure, relaxation behavior and free volume of bio-based poly(butylene 2,5-furandicarboxylate)- block-poly(caprolactone) copolyesters. SOFT MATTER 2023; 19:959-972. [PMID: 36633480 DOI: 10.1039/d2sm01359b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In the present study, a fully plant-based sustainable copolyester series, namely poly(butylene 2,5-furandicarboxylate)-block-poly(caprolactone)s (PBF-block-PCL)s were successfully synthesized by melt polycondensation combining butylene 2,5-furandicarboxylate with polycaprolactone diol (PCL) at different weight ratios. Differential scanning calorimetry (DSC) showed that only PBF underwent melting, crystallization from the melt, and cold crystallization. Thermogravimetric analysis (TGA) revealed outstanding thermal stability, exceeding 305 °C, with further improvement in thermal and thermo-oxidative stability with increasing PCL content. Broadband dielectric spectroscopy (BDS) revealed that at low temperatures, below the glass transition (Tg) all copolyesters exhibited two relaxation processes (β1 and β2), whereas the homopolymer PBF exhibited a single β-relaxation, which is associated with local dynamics of the different chemical bonds present in the polymer chain. Additionally, it was proved that an increase in PCL content affected the dynamics of the chain making it more flexible, thus providing an increase in the value of the room temperature free volume fractions (fv) and the value of elongation at break. These effects are accompanied by a decrease in hardness, Young's modulus, and tensile strength. The described synthesis enables a facile approach to obtain novel fully multiblock biobased copolyesters based on PBF and PCL polyesters with potential industrial implementation capabilities.
Collapse
Affiliation(s)
- Sandra Paszkiewicz
- Department of Materials Technologies, West Pomeranian University of Technology, Al. Piastow 19, PL-70310 Szczecin, Poland.
| | - Izabela Irska
- Department of Materials Technologies, West Pomeranian University of Technology, Al. Piastow 19, PL-70310 Szczecin, Poland.
| | - Agata Zubkiewicz
- Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, PL-70311 Szczecin, Poland
| | - Konrad Walkowiak
- Department of Materials Technologies, West Pomeranian University of Technology, Al. Piastow 19, PL-70310 Szczecin, Poland.
| | - Zbigniew Rozwadowski
- Department of Inorganic and Analytical Chemistry, West Pomeranian University of Technology, Al. Piastów 42, PL-71065 Szczecin, Poland
| | - Jerzy Dryzek
- Institute of Nuclear Physics PAS, ul. Radzikowskiego 152, PL-31342 Cracow, Poland
| | - Amelia Linares
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, Madrid 28006, Spain
| | - Aurora Nogales
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, Madrid 28006, Spain
| | - Tiberio A Ezquerra
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, Madrid 28006, Spain
| |
Collapse
|
4
|
Gálvez O, Toledano O, Hermoso FJ, Linares A, Sanz M, Rebollar E, Nogales A, García-Gutiérrez MC, Santoro G, Irska I, Paszkiewicz S, Szymczyk A, Ezquerra TA. Inter and intra molecular dynamics in Poly(trimethylene 2,5-furanoate) as revealed by infrared and Broadband Dielectric Spectroscopies. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
5
|
Revisiting Non-Conventional Crystallinity-Induced Effects on Molecular Mobility in Sustainable Diblock Copolymers of Poly(propylene adipate) and Polylactide. Molecules 2022; 27:molecules27217449. [PMID: 36364274 PMCID: PMC9655265 DOI: 10.3390/molecules27217449] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
This work deals with molecular mobility in renewable block copolymers based on polylactide (PLA) and poly(propylene adipate) (PPAd). In particular, we assess non-trivial effects on the mobility arising from the implementation of crystallization. Differential scanning calorimetry, polarized light microscopy and broadband dielectric spectroscopy were employed in combination for this study. The materials were subjected to various thermal treatments aiming at the manipulation of crystallization, namely, fast and slow cooling, isothermal melt- and cold-crystallization. Subsequently, we evaluated the changes recorded in the overall thermal behavior, semicrystalline morphology and molecular mobility (segmental and local). The molecular dynamics map for neat PPAd is presented here for the first time. Unexpectedly, the glass transition temperature, Tg, in the amorphous state drops upon crystallization by 8–50 K. The drop becomes stronger with the increase in the PPAd fraction. Compared to the amorphous state, crystallization leads to significantly faster segmental dynamics with severely suppressed cooperativity. For the PLA/PPAd copolymers, the effects are systematically stronger in the cold- as compared to the melt-crystallization, whereas the opposite happens for neat PLA. The local βPLA relaxation of PLA was, interestingly, recorded to almost vanish upon crystallization. This suggests that the corresponding molecular groups (carbonyl) are strongly involved and immobilized within the semicrystalline regions. The overall results suggest the involvement of either spatial nanoconfinement imposed on the mobile chains within the inter-crystal amorphous areas and/or a crystallization-driven effect of nanophase separation. The latter phase separation seems to be at the origins of the significant discrepancy recorded between the calorimetric and dielectric recordings on Tg in the copolymers. Once again, compared to more conventional techniques such as calorimetry, dielectric spectroscopy was proved a powerful and quite sensitive tool in recording such effects as well as in providing indirect indications for the polymer chains’ topology.
Collapse
|
6
|
Klonos PA, Lazaridou M, Samiotaki C, Kyritsis A, Bikiaris DN. Dielectric and calorimetric study in renewable polymer blends based on poly(ethylene adipate) and poly(lactic acid) with microphase separation. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
7
|
Sanz A, Linares A, García-Gutiérrez MC, Nogales A, Paszkiewicz S, Zubkiewicz A, Szymczyk A, Ezquerra TA. Relaxation Dynamics of Biomass-Derived Copolymers With Promising Gas-Barrier Properties. Front Chem 2022; 10:921787. [PMID: 35774857 PMCID: PMC9237226 DOI: 10.3389/fchem.2022.921787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
This article presents an experimental study on the relaxation dynamics of a series of random copolymers based on bio-friendly comonomers with interesting gas barrier properties. We analyze the relaxation response in the glassy and ultraviscous regime of poly (trimethylene furanoate/sebacate) random copolymers via dielectric spectroscopy. We report lower values of dynamic fragility [a dimensionless index introduced in 1985 (Angell, Relaxations in Complex Systems, 1985)] in comparison to popular polyesters widely used in industry, such as poly (ethylene terephthalate), suggesting that the amorphous phase of these furanoate-based polyesters adopt an efficient chain packing. This is consistent with their low permeability to gases. We also discuss on different equations (phenomenological and theory-based approaches) for fitting the temperature-evolution of the alpha relaxation time.
Collapse
Affiliation(s)
- Alejandro Sanz
- Instituto de Estructura de La Materia, IEM-CSIC, Madrid, Spain
- *Correspondence: Alejandro Sanz, ; Tiberio A. Ezquerra,
| | - Amelia Linares
- Instituto de Estructura de La Materia, IEM-CSIC, Madrid, Spain
| | | | - Aurora Nogales
- Instituto de Estructura de La Materia, IEM-CSIC, Madrid, Spain
| | - Sandra Paszkiewicz
- Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, Poland
| | - Agata Zubkiewicz
- Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, Poland
| | - Anna Szymczyk
- Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, Poland
| | - Tiberio A. Ezquerra
- Instituto de Estructura de La Materia, IEM-CSIC, Madrid, Spain
- *Correspondence: Alejandro Sanz, ; Tiberio A. Ezquerra,
| |
Collapse
|
8
|
Klonos PA, Terzopoulou Z, Zamboulis A, Valera MÁ, Mangas A, Kyritsis A, Pissis P, Bikiaris DN. Direct and indirect effects on molecular mobility in renewable polylactide-poly(propylene adipate) block copolymers as studied via dielectric spectroscopy and calorimetry. SOFT MATTER 2022; 18:3725-3737. [PMID: 35503564 DOI: 10.1039/d2sm00261b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, we study a series of sustainable block copolymers based on polylactide, PLA, and poly(propylene adipate), PPAd, both polymers being prepared from renewable resources. Envisaging a wide range of future applications in the frame of a green and circular economy, e.g., packaging materials replacing conventional petrochemicals, the employment of PPAd aims at lowering the glass transition and melting temperatures of PLA and, finally, facilitation of the enzymatic degradation and compostability. The copolymers have been synthesized via ring opening polymerization of lactides in the presence of propylene adipate oligomers (5, 15 and 25%). The direct effects on the molecular mobility by the structure/composition are assessed in the amorphous state employing broadband dielectric spectroscopy (BDS) and calorimetry. BDS allowed the recording of local PLA and PPAd dynamics in all cases. The effects on local relaxations suggest favoring of interchain interactions, both PLA-PPAd and PPAd-PPAd. Regarding the more important segmental dynamics, the presence of PPAd leads to faster polymer chain diffusion, as monitored by the significant lowering of the dielectric and calorimetric glass transition temperature, Tg. This suggests the plasticizing role of PPAd on PLA (majority) in combination with the lowering of the average molar mass, Mn, in the copolymers from ∼75 to ∼30 kg mol-1, which is the actual scope for the synthesis of these materials. Interestingly, a strong suppression in fragility (chain cooperativity) is additionally recorded. In contrast to calorimetry and due to the high resolving power of BDS, for the higher PPAd fraction, the weak segmental relaxation of PPAd was additionally recorded. Overall, the recordings suggest a strong increase in free volume and two individual dynamic states, one for 0 and 5% PPAd and another for 15 and 25% PPAd. Within the latter, we gained indications for partial phase nano-separation of PPAd. Regarding indirect effects, these were followed via crystallization. Independent of the method of crystallization, namely, melt or cold, the presence of PPAd led to the systematic lowering of crystallization and melting temperatures and enthalpies. The effects reflect the decrease of crystalline nuclei, which is confirmed by optical microscopy as in the copolymers fewer although larger crystals are formed.
Collapse
Affiliation(s)
- Panagiotis A Klonos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
- Department of Physics, National Technical University of Athens (NTUA), Zografou Campus, 15780, Athens, Greece
| | - Zoi Terzopoulou
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| | - Alexandra Zamboulis
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| | - Miguel Ángel Valera
- AIMPLAS, Asociación de Investigación de Materiales Plásticos Y Conexas, Carrer de Gustave Eiffel, 4, 46980 Valencia, Spain
| | - Ana Mangas
- AIMPLAS, Asociación de Investigación de Materiales Plásticos Y Conexas, Carrer de Gustave Eiffel, 4, 46980 Valencia, Spain
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens (NTUA), Zografou Campus, 15780, Athens, Greece
| | - Polycarpos Pissis
- Department of Physics, National Technical University of Athens (NTUA), Zografou Campus, 15780, Athens, Greece
| | - Dimitrios N Bikiaris
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| |
Collapse
|
9
|
Zubkiewicz A, Szymczyk A, Sablong RJ, Soccio M, Guidotti G, Siracusa V, Lotti N. Bio-based aliphatic/aromatic poly(trimethylene furanoate/sebacate) random copolymers: Correlation between mechanical, gas barrier performances and compostability and copolymer composition. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2021.109800] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Xanthopoulou E, Klonos PA, Zamboulis A, Terzopoulou Z, Kyritsis A, Pissis P, Bikiaris DN, Papageorgiou GZ. Molecular mobility investigation of the biobased Poly(ethylene vanillate) and Poly(propylene vanillate). POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
11
|
Bianchi E, Soccio M, Siracusa V, Gazzano M, Thiyagarajan S, Lotti N. Poly(butylene 2,4-furanoate), an Added Member to the Class of Smart Furan-Based Polyesters for Sustainable Packaging: Structural Isomerism as a Key to Tune the Final Properties. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:11937-11949. [PMID: 34513341 PMCID: PMC8424682 DOI: 10.1021/acssuschemeng.1c04104] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/07/2021] [Indexed: 05/10/2023]
Abstract
High-molecular-weight poly(butylene 2,4-furanoate) (2,4-PBF), an isomer of well-known poly(butylene 2,5-furanoate) (2,5-PBF), was synthesized through an eco-friendly solvent-free polycondensation process and processed in the form of an amorphous film by compression molding. Molecular characterization was carried out by NMR spectroscopy and GPC analysis, confirming the chemical structure and high polymerization degree. Thermal analyses evidenced a reduction of both glass-to-rubber transition and melting temperatures, as well as a detriment of crystallization capability, for 2,4-PBF with respect to 2,5-PBF. Nevertheless, it was possible to induce crystal phase formation by annealing treatment. Wide-angle X-ray scattering revealed that the crystal lattices developed in the two isomers are distinct from each other. The different isomerism affects also the thermal stability, being 2,4-PBF more thermally inert than 2,5-PBF. Functional properties, such as wettability, mechanical response, and gas barrier capability, were tested on both amorphous and semicrystalline 2,4-PBF films and compared with those of 2,5-PBF. Reduced hydrophilicity was determined for 2,4-isomer, in line with its lower average dipole moment, suggesting better chemical resistance to hydrolysis. Stress-strain tests have evidenced the higher flexibility and toughness of 2,4-PBF with respect to those of 2,5-PBF and the possibility of improving its mechanical resistance by annealing. Finally, the different isomerism deeply affects the gas barrier performance, being the O2- and CO2-transmission rates of 2,4-PBF 50 and 110 times lower, respectively, than those of 2,5-PBF. The gas barrier properties turned out to be outstanding under a dry atmosphere as well as in humid conditions, suggesting the presence of interchain hydrogen bonds. The gas blocking capability decreases after annealing because of the presence of disclination associated with the formation of crystals.
Collapse
Affiliation(s)
- Enrico Bianchi
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Michelina Soccio
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
- Interdepartmental
Center for Industrial Research on Advanced Applications in Mechanical
Engineering and Materials Technology, CIRI-MAM, University of Bologna, Bologna 40126, Italy
| | - Valentina Siracusa
- Department
of Chemical Science, University of Catania, Viale A. Doria 6, Catania 95125, Italy
| | - Massimo Gazzano
- Institute
of Organic Synthesis and Photoreactivity, ISOF-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | | | - Nadia Lotti
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
- Interdepartmental
Center for Industrial Research on Advanced Applications in Mechanical
Engineering and Materials Technology, CIRI-MAM, University of Bologna, Bologna 40126, Italy
- Interdepartmental
Center for Agro-Food Research, CIRI-AGRO, University of Bologna, Bologna 40126, Italy
| |
Collapse
|
12
|
Relaxation behaviour and free volume of bio-based Poly(trimethylene terephthalate)-block-poly(caprolactone) copolymers as revealed by Broadband Dielectric and Positron Annihilation Lifetime Spectroscopies. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
13
|
Kourtidou D, Klonos PA, Papadopoulos L, Kyritsis A, Bikiaris DN, Chrissafis K. Molecular mobility and crystallization of renewable poly(ethylene furanoate) in situ filled with carbon nanotubes and graphene nanoparticles. SOFT MATTER 2021; 17:5815-5828. [PMID: 34037062 DOI: 10.1039/d1sm00592h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We investigate the thermal transitions and molecular mobility in new nanocomposites of biobased poly(ethylene furanoate) (PEF), by calorimetry and dielectric spectroscopy, supplemented by X-ray diffraction, Fourier transform infra-red spectroscopy and polarized light microscopy. The emphasis is placed on the facilitation of the crystallization of PEF, which is in general low and slow due to structural limitations that result in poor nucleation. Tuning of the crystalline fraction (CF) and semicrystalline morphology are important for optimization of the mechanical performance and manipulation of the permeation of small molecules (e.g., in packaging applications). The nucleation and CF are successfully improved here by the in situ filling of PEF with 0.5-2.5 wt% of carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs). The improvements are discussed in connection with weak or absent interfacial polymer-filler interactions. CNTs were found to be more effective in facilitating crystallization, as compared with GNPs, possibly due to their larger aspect ratio. The segmental dynamics of PEF are both accelerated and decelerated by the addition of GNP and CNT, respectively, with complex phenomena contributing to the effects, namely, nucleation, changes in molar mass and changes in the free volume. The molecular mobility of PEF is moderately affected 'directly' by the particles, whereas stronger effects are induced by crystallization (an indirect effect) and, furthermore, by the increase in the length of alkylene sequences on the chain. Local dynamics exhibit time scale disturbances when the temperature approaches that of the glass transition, which is proposed here to be a common characteristic in the case of mobilities originating from the polymer backbone for these as well as different polyesters. Despite the weak effects on molecular mobility, the role of the fillers as nucleating agents seems to be further exploitable in the frame of envisaged applications, as the use of such fillers in combination with thermal treatment offer possibilities for manipulating the semicrystalline morphology, ion transport and, subsequently, permeation of small molecules.
Collapse
Affiliation(s)
- Dimitra Kourtidou
- School of Physics, Advanced Material and Devices Laboratory, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| | - Panagiotis A Klonos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece. and Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780, Athens, Greece
| | - Lazaros Papadopoulos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780, Athens, Greece
| | - Dimitrios N Bikiaris
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| | - Konstantinos Chrissafis
- School of Physics, Advanced Material and Devices Laboratory, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
| |
Collapse
|
14
|
Poly(1,4-butylene -co-1,4-cyclohexanedimethylene 2,5-furandicarboxylate) copolyester: Potential bio-based engineering plastic. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110317] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
15
|
Zubkiewicz A, Paszkiewicz S, Szymczyk A. The effect of annealing on tensile properties of injection molded biopolyesters based on 2,5‐furandicarboxylic acid. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25675] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Agata Zubkiewicz
- Department of Technical Physics West Pomeranian University of Technology Szczecin Poland
| | - Sandra Paszkiewicz
- Department of Materials Technology West Pomeranian University of Technology Szczecin Poland
| | - Anna Szymczyk
- Department of Technical Physics West Pomeranian University of Technology Szczecin Poland
| |
Collapse
|
16
|
Bourdet A, Araujo S, Thiyagarajan S, Delbreilh L, Esposito A, Dargent E. Molecular mobility in amorphous biobased copolyesters obtained with 2,5- and 2,4-furandicarboxylate acid. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Papadopoulos L, Klonos PA, Kluge M, Zamboulis A, Terzopoulou Z, Kourtidou D, Magaziotis A, Chrissafis K, Kyritsis A, Bikiaris DN, Robert T. Unlocking the potential of furan-based poly(ester amide)s: an investigation of crystallization, molecular dynamics and degradation kinetics of novel poly(ester amide)s based on renewable poly(propylene furanoate). Polym Chem 2021. [DOI: 10.1039/d1py00713k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, novel polyester amides (PEAs) based on renewable poly(propylene furanoate) (PPF) were prepared via traditional melt polycondensation utilizing a preformed symmetric amido diol (AD) containing two internal amide bonds.
Collapse
Affiliation(s)
- Lazaros Papadopoulos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Panagiotis A. Klonos
- Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780, Athens, Greece
| | - Marcel Kluge
- Fraunhofer Institute for Wood Research – Wilhelm-Klauditz-Institut WKI, Bienroder Weg 54E, 38108 Braunschweig, Germany
| | - Alexandra Zamboulis
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Zoi Terzopoulou
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Dimitra Kourtidou
- Laboratory of X-ray, Optical Characterization and Thermal Analysis, Physics Department, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Andreas Magaziotis
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Konstantinos Chrissafis
- Laboratory of X-ray, Optical Characterization and Thermal Analysis, Physics Department, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, GR-15780, Athens, Greece
| | - Dimitrios N. Bikiaris
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Tobias Robert
- Fraunhofer Institute for Wood Research – Wilhelm-Klauditz-Institut WKI, Bienroder Weg 54E, 38108 Braunschweig, Germany
| |
Collapse
|
18
|
Martínez-Tong DE, Soccio M, Robles-Hernández B, Guidotti G, Gazzano M, Lotti N, Alegria A. Evidence of Nanostructure Development from the Molecular Dynamics of Poly(pentamethylene 2,5-furanoate). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02297] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel E. Martínez-Tong
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, University of the Basque Country (UPV/EHU). Paseo Manuel Lardizábal 3, 20018 Donostia, Spain
- Centro de Física de Materiales (CFM, CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 Donostia, Spain
| | - Michelina Soccio
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Beatriz Robles-Hernández
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, University of the Basque Country (UPV/EHU). Paseo Manuel Lardizábal 3, 20018 Donostia, Spain
- Centro de Física de Materiales (CFM, CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 Donostia, Spain
| | - Giulia Guidotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Massimo Gazzano
- Institute of Organic Synthesis and Photoreactivity, National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Angel Alegria
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, University of the Basque Country (UPV/EHU). Paseo Manuel Lardizábal 3, 20018 Donostia, Spain
- Centro de Física de Materiales (CFM, CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 Donostia, Spain
| |
Collapse
|
19
|
Klonos PA, Papadopoulos L, Terzopoulou Z, Papageorgiou GZ, Kyritsis A, Bikiaris DN. Molecular Dynamics in Nanocomposites Based on Renewable Poly(butylene 2,5-furan-dicarboxylate) In Situ Reinforced by Montmorillonite Nanoclays: Effects of Clay Modification, Crystallization, and Hydration. J Phys Chem B 2020; 124:7306-7317. [PMID: 32786716 DOI: 10.1021/acs.jpcb.0c04306] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This study deals with poly(butylene 2,5-furan-dicarboxylate), PBF, a renewable bio-based polyester expected to replace non-eco-friendly fossil-based homologues. PBF exhibits excellent gas barrier properties, which makes it promising for packaging applications; however, its rather low and slow crystallinity affects good mechanical performance. The crystallization of this relatively new polymer is enhanced here via reinforcement by introduction in situ of 1 wt % montmorillonite, MMT, nanoclays of three types (functionalizations). We study PBF and its nanocomposites (PNCs) also from the basic research point of view, molecular dynamics. For this work, we employ the widely used combination of techniques, differential scanning calorimetry (DSC) with broad-band dielectric relaxation spectroscopy (BDS), supplemented by polarized light microscopy (PLM) and thermogravimetric analysis (TGA). In the PNCs, the crystalline rate and fraction, CF, were found to be strongly enhanced as these fillers act as additional crystallization nuclei. The improvements in crystallization here correlate quite well with those on the mechanical performance recorded recently; moreover, they occur in the same filler order, in particular, with increasing MMT interlayer distance (from ∼1 to ∼3 nm). In the amorphous fraction of the polymer, the chain diffusion (calorimetric Tg and dynamic α process) is easier in the PNCs due to their slightly smaller length, while in the semicrystalline state, it decelerates by crystal-induced constraints. The local polymer dynamics (β process, below Tg) was found to be independent of the PNC composition, however, sensitive to structural changes of the matrix. Finally, a filler-induced dynamics was additionally recorded in the PNCs (α* process), arising possibly from the polymer located at the MMT surfaces. α* follows the changes in polymer chain length and decelerates with crystallization, whereas its activation energy decreases with mild hydration. The combined results on α* with the DSC and TGA findings, provide proof for weak MMT-PBF interactions. Overall, our results, along with data from the literature, suggest that such furan-based polyesters reinforced with properly chosen nanofillers could potentially serve well as tailor-made PNCs for targeted applications.
Collapse
Affiliation(s)
- Panagiotis A Klonos
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.,Department of Physics, National Technical University of Athens, Zografou Campus, 157 80 Athens, Greece
| | - Lazaros Papadopoulos
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Zoi Terzopoulou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - George Z Papageorgiou
- Laboratory of Industrial and Food Chemistry, Chemistry Department, University of Ioannina, 451 10 Ioannina, Greece
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, 157 80 Athens, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| |
Collapse
|
20
|
Ignaczak W, Ladegaard Skov A, El Fray M. Interfacial Polarization in Thermoplastic Basalt Fiber-Reinforced Composites. Polymers (Basel) 2020; 12:polym12071486. [PMID: 32635244 PMCID: PMC7407761 DOI: 10.3390/polym12071486] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 11/16/2022] Open
Abstract
The aim of this work was to study the interfacial behavior of basalt-fiber-reinforced thermoplastic blends of polypropylene and poly(butylene terephthalate) (PP/PBT). We examined the effect of two compatibilizers and two basalt fiber (BF) sizings: commercial (REF) and experimental (EXP). Differential scanning calorimetry was used to assess the influence of BFs on the phase structure of obtained composites. Furthermore, dielectric relaxation spectroscopy was used for the first time to non-destructively study the interfacial adhesion within an entire volume of BF-reinforced composites by assessing the α relaxation, DC conductivity, and Maxwell-Wagner-Sillars (MWS) polarization. The fiber-matrix adhesion was further investigated using the Havriliak-Negami model. Using complex plane analysis, the dielectric strength, which is inversely related to the adhesion, was calculated. The composites reinforced with EXP fibers showed significantly lower values of dielectric strength compared to the REF fibers, indicating better adhesion between the reinforcement and blend matrix. Static bending tests also confirmed improved fiber adhesion with EXP fibers, while also suggesting a synergistic effect between compatibilizer and sizing in enhancing interfacial properties. Thus, we conclude that substantially improved adhesion of PP/PBT BF-reinforced composites is the result of mutual interactions of functional groups of blend matrix, mostly from blend compatibilizer, and fiber surface due to sizing.
Collapse
Affiliation(s)
- Wojciech Ignaczak
- Department of Polymer and Biomaterials Science, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastów 45, 71-311 Szczecin, Poland,
| | - Anne Ladegaard Skov
- Department of Chemical Engineering, Danish Polymer Center, Technical University of Denmark, Søltofts Plads 228A, 2800 Kgs. Lyngby, Denmark,
| | - Miroslawa El Fray
- Department of Polymer and Biomaterials Science, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastów 45, 71-311 Szczecin, Poland,
| |
Collapse
|
21
|
Guidotti G, Soccio M, García-Gutiérrez MC, Ezquerra T, Siracusa V, Gutiérrez-Fernández E, Munari A, Lotti N. Fully Biobased Superpolymers of 2,5-Furandicarboxylic Acid with Different Functional Properties: From Rigid to Flexible, High Performant Packaging Materials. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2020; 8:9558-9568. [PMID: 33796416 PMCID: PMC8007128 DOI: 10.1021/acssuschemeng.0c02840] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/19/2020] [Indexed: 05/10/2023]
Abstract
In the present paper, four fully biobased homopolyesters of 2,5-furandicarboxylic acid (2,5-FDCA) with a high molecular weight have been successfully synthesized by two-stage melt polycondensation, starting from the dimethyl ester of 2,5-FDCA and glycols of different lengths (the number of methylene groups ranged from 3 to 6). The synthesized polyesters have been first subjected to an accurate molecular characterization by NMR and gel-permeation chromatography. Afterward, the samples have been successfully processed into free-standing thin films (thickness comprised between 150 to 180 μm) by compression molding. Such films have been characterized from the structural (by wide-angle X-ray scattering and small-angle X-ray scattering), thermal (by differential scanning calorimetry and thermogravimetric analysis), mechanical (by tensile test), and gas barrier (by permeability measurements) point of view. The glycol subunit length was revealed to be the key parameter in determining the kind and fraction of ordered phases developed by the sample during compression molding and subsequent cooling. After storage at room temperature for one month, only the homopolymers containing the glycol subunit with an even number of -CH2- groups (poly(butylene 2,5-furanoate) (PBF) and poly(hexamethylene 2,5-furanoate) (PHF)) were able to develop a three-dimensional ordered crystalline phase in addition to the amorphous one, the other two appearing completely amorphous (poly(propylene 2,5-furanoate (PPF) and poly(pentamethylene 2,5-furanoate) (PPeF)). From X-ray scattering experiments using synchrotron radiation, it was possible to evidence a third phase characterized by a lower degree of order (one- or two-dimensional), called a mesophase, in all the samples under study, its fraction being strictly related to the glycol subunit length: PPeF was found to be the sample with the highest fraction of mesophase followed by PHF. Such a mesophase, together with the amorphous and the eventually present crystalline phase, significantly impacted the mechanical and barrier properties, these last being particularly outstanding for PPeF, the polyester with the highest fraction of mesophase among those synthesized in the present work.
Collapse
Affiliation(s)
- Giulia Guidotti
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Michelina Soccio
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Mari Cruz García-Gutiérrez
- Instituto
de Estructura de la Materia IEM-CSIC, Consejo Superior de Investigaciones
Científicas, Calle Serrano 121, 28006 Madrid, Spain
| | - Tiberio Ezquerra
- Instituto
de Estructura de la Materia IEM-CSIC, Consejo Superior de Investigaciones
Científicas, Calle Serrano 121, 28006 Madrid, Spain
| | - Valentina Siracusa
- Dipartimento
di Scienze Chimiche, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Edgar Gutiérrez-Fernández
- Instituto
de Estructura de la Materia IEM-CSIC, Consejo Superior de Investigaciones
Científicas, Calle Serrano 121, 28006 Madrid, Spain
| | - Andrea Munari
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Nadia Lotti
- Civil,
Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| |
Collapse
|
22
|
Soccio M, Martínez-Tong DE, Guidotti G, Robles-Hernández B, Munari A, Lotti N, Alegria A. Broadband Dielectric Spectroscopy Study of Biobased Poly(alkylene 2,5-furanoate)s' Molecular Dynamics. Polymers (Basel) 2020; 12:E1355. [PMID: 32560215 PMCID: PMC7361705 DOI: 10.3390/polym12061355] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 02/06/2023] Open
Abstract
Poly(2,5-alkylene furanoate)s are bio-based, smart, and innovative polymers that are considered the most promising materials to replace oil-based plastics. These polymers can be synthesized using ecofriendly approaches, starting from renewable sources, and result into final products with properties comparable and even better than those presented by their terephthalic counterparts. In this work, we present the molecular dynamics of four 100% bio-based poly(alkylene 2,5-furanoate)s, using broadband dielectric spectroscopy measurements that covered a wide temperature and frequency range. We unveiled complex local relaxations, characterized by the simultaneous presence of two components, which were dependent on thermal treatment. The segmental relaxation showed relaxation times and strengths depending on the glycolic subunit length, which were furthermore confirmed by high-frequency experiments in the molten region of the polymers. Our results allowed determining structure-property relations that are able to provide further understanding about the excellent barrier properties of poly(alkylene 2,5-furanoate)s. In addition, we provide results of high industrial interest during polymer processing for possible industrial applications of poly(alkylene furanoate)s.
Collapse
Affiliation(s)
- Michelina Soccio
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (A.M.); (N.L.)
| | - Daniel E. Martínez-Tong
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), P. Manuel Lardizábal 3, E-20018 San Sebastián, Spain; (B.R.-H.); (A.A.)
- Centro de Física de Materiales (CSIC–UPV/EHU), P. Manuel Lardizábal 5, E-20018 San Sebastián, Spain
| | - Giulia Guidotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (A.M.); (N.L.)
| | - Beatriz Robles-Hernández
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), P. Manuel Lardizábal 3, E-20018 San Sebastián, Spain; (B.R.-H.); (A.A.)
- Centro de Física de Materiales (CSIC–UPV/EHU), P. Manuel Lardizábal 5, E-20018 San Sebastián, Spain
| | - Andrea Munari
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (A.M.); (N.L.)
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (A.M.); (N.L.)
| | - Angel Alegria
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), P. Manuel Lardizábal 3, E-20018 San Sebastián, Spain; (B.R.-H.); (A.A.)
- Centro de Física de Materiales (CSIC–UPV/EHU), P. Manuel Lardizábal 5, E-20018 San Sebastián, Spain
| |
Collapse
|
23
|
Sanusi OM, Papadopoulos L, Klonos PA, Terzopoulou Z, Hocine NA, Benelfellah A, Papageorgiou GZ, Kyritsis A, Bikiaris DN. Calorimetric and Dielectric Study of Renewable Poly(hexylene 2,5-furan-dicarboxylate)-Based Nanocomposites In Situ Filled with Small Amounts of Graphene Platelets and Silica Nanoparticles. Polymers (Basel) 2020; 12:E1239. [PMID: 32485937 PMCID: PMC7362010 DOI: 10.3390/polym12061239] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 11/21/2022] Open
Abstract
Poly(hexylene 2,5 furan-dicarboxylate) (PHF) is a relatively new biobased polyester prepared from renewable resources, which is targeted for use in food packaging applications, owing to its great mechanical and gas barrier performance. Since both properties are strongly connected to crystallinity, the latter is enhanced here by the in situ introduction in PHF of graphene nanoplatelets and fumed silica nanoparticles, as well as mixtures of both, at low amounts. For this investigation, we employed Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and dielectric spectroscopy (BDS). The fillers were found to improve crystallization in both the rate (increasing Tc) and fraction (CF), which was rationalized via the concept of fillers acting as crystallization agents. This action was found stronger in the case of graphene as compared to silica. BDS allowed the detection of local and segmental dynamics, in particular in PHF for the first time. The glass transition dynamics in both BDS (α relaxation) and DSC (Tg) are mainly dominated by the relatively high CF, whereas in the PHF filled uniquely with silica strong spatial confinement effects due to crystals were revealed. Finally, all samples demonstrated the segmental-like dynamics above Tg, which screens the global chain dynamics (normal mode).
Collapse
Affiliation(s)
- Olawale Monsur Sanusi
- INSA CVL, Univ. Tours, Univ. Orléans, LaMé, 3 Rue de la Chocolaterie, CS 23410, CEDEX 41034 Blois, France; (O.M.S.); (N.A.H.); (A.B.)
| | - Lazaros Papadopoulos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; (L.P.); (Z.T.)
| | - Panagiotis A. Klonos
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; (L.P.); (Z.T.)
- Department of Physics, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece;
| | - Zoi Terzopoulou
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; (L.P.); (Z.T.)
| | - Nourredine Aït Hocine
- INSA CVL, Univ. Tours, Univ. Orléans, LaMé, 3 Rue de la Chocolaterie, CS 23410, CEDEX 41034 Blois, France; (O.M.S.); (N.A.H.); (A.B.)
| | - Abdelkibir Benelfellah
- INSA CVL, Univ. Tours, Univ. Orléans, LaMé, 3 Rue de la Chocolaterie, CS 23410, CEDEX 41034 Blois, France; (O.M.S.); (N.A.H.); (A.B.)
- DRII, IPSA, 63 Boulevard de Brandebourg, 94200 Ivry-Sur-Seine, France
| | - George Z. Papageorgiou
- Laboratory of Industrial and Food chemistry, Chemistry Department, University of Ioannina, 45110 Ioannina, Greece;
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece;
| | - Dimitrios N. Bikiaris
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; (L.P.); (Z.T.)
| |
Collapse
|
24
|
Papadopoulos L, Klonos PA, Tzetzis D, Papageorgiou GZ, Kyritsis A, Bikiaris DN. Effects of graphene nanoplatelets on crystallization, mechanical performance and molecular dynamics of the renewable poly(propylene furanoate). POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
25
|
Guidotti G, Soccio M, Lotti N, Siracusa V, Gazzano M, Munari A. New multi-block copolyester of 2,5-furandicarboxylic acid containing PEG-like sequences to form flexible and degradable films for sustainable packaging. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.108963] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
26
|
Irska I, Linares A, Piesowicz E, Paszkiewicz S, Rosłaniec Z, Nogales A, Ezquerra TA. Dielectric spectroscopy of novel bio-based aliphatic-aromatic block copolymers: Poly(butylene terephthalate)-b-poly(lactic acid). THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2019; 42:107. [PMID: 31440921 DOI: 10.1140/epje/i2019-11874-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
Broadband dielectric spectroscopy has been used to characterize in deep the relaxation behavior of novel bio-based aliphatic-aromatic block copolymers based on poly(butylene terephthalate) (PBT) and poly(lactic acid) (PLA). The results indicate that the copolymerization decreases the ability to crystallize of the resulting block copolymer. The [Formula: see text] relaxation of the block copolymers is consistent with this fact exhibiting initially the characteristics features of an amorphous polymeric material cold crystallizing upon heating. The cold crystallization can be easily visualized by dielectric spectroscopy by a discontinuous and abrupt change of the shape parameters of the [Formula: see text] relaxation. The sub-glass dynamics of the block copolymers is complex and be ascribed to a [Formula: see text] relaxation composed of two local modes, [Formula: see text] and [Formula: see text], which can be assigned to the relaxation in PBT of the bond between the ester oxygen and the aliphatic carbon and to the bond between the aromatic ring carbon to the ester carbon, respectively. With increasing amount of the PLA block the crystallinity decreases as well as the activation energy of the [Formula: see text] mode approaching the expected value for amorphous PBT. On the contrary, the activation energy for the [Formula: see text] exhibits an unexpected increase as the amount of PLA increases. This effect has been explained by considering that at lower temperatures the [Formula: see text] mode of PBT is the more significant while at higher temperatures the [Formula: see text] relaxation of the PLA block becomes the dominant one.
Collapse
Affiliation(s)
- I Irska
- Institute of Materials Science and Engineering, West Pomeranian University of Technology Szczecin, 70-310, Szczecin, Poland
| | - A Linares
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006, Madrid, Spain
| | - E Piesowicz
- Institute of Materials Science and Engineering, West Pomeranian University of Technology Szczecin, 70-310, Szczecin, Poland
| | - S Paszkiewicz
- Institute of Materials Science and Engineering, West Pomeranian University of Technology Szczecin, 70-310, Szczecin, Poland
| | - Z Rosłaniec
- Institute of Materials Science and Engineering, West Pomeranian University of Technology Szczecin, 70-310, Szczecin, Poland
| | - A Nogales
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006, Madrid, Spain
| | - T A Ezquerra
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006, Madrid, Spain.
| |
Collapse
|
27
|
Papamokos G, Dimitriadis T, Bikiaris DN, Papageorgiou GZ, Floudas G. Chain Conformation, Molecular Dynamics, and Thermal Properties of Poly(n-methylene 2,5-furanoates) as a Function of Methylene Unit Sequence Length. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01320] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- George Papamokos
- Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
| | | | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Macedonia, Greece
| | | | - George Floudas
- Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
| |
Collapse
|
28
|
Poulopoulou N, Pipertzis A, Kasmi N, Bikiaris DN, Papageorgiou DG, Floudas G, Papageorgiou GZ. Green polymeric materials: On the dynamic homogeneity and miscibility of furan-based polyester blends. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.04.058] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
29
|
Guidotti G, Genovese L, Soccio M, Gigli M, Munari A, Siracusa V, Lotti N. Block Copolyesters Containing 2,5-Furan and trans-1,4-Cyclohexane Subunits with Outstanding Gas Barrier Properties. Int J Mol Sci 2019; 20:E2187. [PMID: 31052594 PMCID: PMC6539254 DOI: 10.3390/ijms20092187] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/23/2019] [Accepted: 05/01/2019] [Indexed: 02/07/2023] Open
Abstract
Biopolymers are gaining increasing importance as substitutes for plastics derived from fossil fuels, especially for packaging applications. In particular, furanoate-based polyesters appear as the most credible alternative due to their intriguing physic/mechanical and gas barrier properties. In this study, block copolyesters containing 2,5-furan and trans-1,4-cyclohexane moieties were synthesized by reactive blending, starting from the two parent homopolymers: poly(propylene furanoate) (PPF) and poly(propylene cyclohexanedicarboxylate) (PPCE). The whole range of molecular architectures, from long block to random copolymer with a fixed molar composition (1:1 of the two repeating units) was considered. Molecular, thermal, tensile, and gas barrier properties of the prepared materials were investigated and correlated to the copolymer structure. A strict dependence of the functional properties on the copolymers' block length was found. In particular, short block copolymers, thanks to the introduction of more flexible cyclohexane-containing co-units, displayed high elongation at break and low elastic modulus, thus overcoming PPF's intrinsic rigidity. Furthermore, the exceptionally low gas permeabilities of PPF were further improved due to the concomitant action of the two rings, both capable of acting as mesogenic groups in the presence of flexible aliphatic units, and thus responsible for the formation of 1D/2D ordered domains, which in turn impart outstanding barrier properties.
Collapse
Affiliation(s)
- Giulia Guidotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Laura Genovese
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Michelina Soccio
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Matteo Gigli
- Department of Chemical Science and Technologies, University of Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy.
| | - Andrea Munari
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Valentina Siracusa
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| |
Collapse
|
30
|
Chebbi Y, Kasmi N, Majdoub M, Papageorgiou GZ, Achilias DS, Bikiaris DN. Solid-State Polymerization of Poly(Ethylene Furanoate) Biobased Polyester, III: Extended Study on Effect of Catalyst Type on Molecular Weight Increase. Polymers (Basel) 2019; 11:E438. [PMID: 30960422 PMCID: PMC6473661 DOI: 10.3390/polym11030438] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 02/23/2019] [Accepted: 02/28/2019] [Indexed: 12/20/2022] Open
Abstract
In this study, the synthesis of poly(ethylene furanoate) (PEF), catalyzed by five different catalysts-antimony acetate (III) (Sb Ac), zirconium (IV) isopropoxide isopropanal (Zr Is Ip), antimony (III) oxide (Sb Ox), zirconium (IV) 2,4-pentanedionate (Zr Pe) and germanium (IV) oxide (Ge Ox)-via an industrially common combination of melt polymerization and subsequent solid-state polymerization (SSP) is presented. In all reactions, proper amounts of 2,5-dimethylfuran-dicarboxylate (DMFD) and ethylene glycol (EG) in a molar ratio of DMFD/EG= 1/2 and 400 ppm of catalyst were used. Polyester samples were subjected to SSP procedure, under vacuum application, at different reaction times (1, 2, 3.5, and 5 h) and temperatures of 190, 200, and 205 °C. Carboxyl end-groups concentration (⁻COOH), intrinsic viscosity (IV), and thermal properties, via differential scanning calorimetry (DSC), were measured for all resultant polymers to study the effect of the used catalysts on the molecular weight increase of PEF during SSP process. As was expected, it was found that with increasing the SSP time and temperature, the intrinsic viscosity and the average molecular weight of PEF steadily increased. In contrast, the number of carboxyl end-groups content showed the opposite trend as intrinsic viscosity, that is, gradually decreasing during SSP time and temperature increase. It is worthy to note that thanks to the SSP process an obvious and continuous enhancement in the thermal properties of the prepared PEF samples was attained, in which their melting temperatures (Tm) and degree of crystallinity (Xc) increase progressively with increasing of reaction time and temperature. To predict the time evolution of polymers IV, as well as the hydroxyl and carboxyl content of PEF polyesters during the SSP, a simple kinetic model was developed. From both the theoretical simulation results and the experimental measurements, it was demonstrated that surely the Zr Is Ip catalyst shows the best catalytic characteristics compared to all other used catalysts herein, that is, leading in reducing-in a spectacular way-the activation energy of the involved both transesterification and esterification reactions during SSP.
Collapse
Affiliation(s)
- Yosra Chebbi
- Laboratoire des Interfaces et Matériaux Avancés, Université de Monastir, Monastir 5000, Tunisia.
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Nejib Kasmi
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Mustapha Majdoub
- Laboratoire des Interfaces et Matériaux Avancés, Université de Monastir, Monastir 5000, Tunisia.
| | - George Z Papageorgiou
- Chemistry Department, University of Ioannina, P.O. Box 1186, 45110 Ioannina, Greece.
| | - Dimitris S Achilias
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| |
Collapse
|
31
|
Kasmi N, Wahbi M, Papadopoulos L, Terzopoulou Z, Guigo N, Sbirrazzuoli N, Papageorgiou GZ, Bikiaris DN. Synthesis and characterization of two new biobased poly(pentylene 2,5-furandicarboxylate-co-caprolactone) and poly(hexamethylene 2,5-furandicarboxylate-co-caprolactone) copolyesters with enhanced enzymatic hydrolysis properties. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
32
|
Guidotti G, Soccio M, Lotti N, Gazzano M, Siracusa V, Munari A. Poly(propylene 2,5-thiophenedicarboxylate) vs. Poly(propylene 2,5-furandicarboxylate): Two Examples of High Gas Barrier Bio-Based Polyesters. Polymers (Basel) 2018; 10:E785. [PMID: 30960710 PMCID: PMC6403766 DOI: 10.3390/polym10070785] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 11/28/2022] Open
Abstract
Both academia and industry are currently devoting many efforts to develop high gas barrier bioplastics as substitutes of traditional fossil-based polymers. In this view, this contribution presents a new biobased aromatic polyester, i.e., poly(propylene 2,5-thiophenedicarboxylate) (PPTF), which has been compared with the furan-based counterpart (PPF). Both biopolyesters have been characterized from the molecular, thermo-mechanical and structural points of view. Gas permeability behavior has been evaluated with respect to 100% oxygen, carbon dioxide and nitrogen at 23 °C. In case of CO₂ gas test, gas transmission rate has been also measured at different temperatures. The permeability behavior at different relative humidity has been investigated for both biopolyesters, the thiophen-containing sample demonstrating to be better than the furan-containing counterpart. PPF's permeability behavior became worse than PPTF's with increasing RH, due to the more polar nature of the furan ring. Both biopolyesters under study are characterized by superior gas barrier performances with respect to PEF and PET. With the simple synthetic strategy adopted, the exceptional barrier properties render these new biobased polyesters interesting alternatives in the world of green and sustainable packaging materials. The different polarity and stability of heterocyclic rings was revealed to be an efficient tool to tailor the ability of crystallization, which in turn affects mechanical and barrier performances.
Collapse
Affiliation(s)
- Giulia Guidotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Michelina Soccio
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| | - Massimo Gazzano
- Organic Synthesis and Photoreactivity Institute, ISOF-CNR, Via Gobetti 101, 40129 Bologna, Italy.
| | - Valentina Siracusa
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Andrea Munari
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
| |
Collapse
|