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K S S, Ravji Paghadar B, Kumar SP, R L J. Polybutylene Succinate, A potential bio-degradable polymer: Synthesis, copolymerization And Bio-degradation. Polym Chem 2022. [DOI: 10.1039/d2py00204c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(butylene succinate) is one of the emerging bio-degradable polymer, which has huge potential to be employed in a wide range of applications. Further, it is also recognized as one of...
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2
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Abstract
Designed polyurethanes with degradable ester units all throughout the polymer backbone and quaternized ammonium units in the hard segment (tensile strength ∼30 MPa, elongation at break ∼1400%) show degradation in 35 days in industrial compost.
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Affiliation(s)
- Pin Hu
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Anil Kumar
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Reza Gharibi
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Seema Agarwal
- Macromolecular Chemistry II, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Macromolecular Chemistry II, Bavarian Polymer Institute, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
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3
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Guidotti G, Burzotta G, Soccio M, Gazzano M, Siracusa V, Munari A, Lotti N. Chemical Modification of Poly(butylene trans-1,4-cyclohexanedicarboxylate) by Camphor: A New Example of Bio-Based Polyesters for Sustainable Food Packaging. Polymers (Basel) 2021; 13:2707. [PMID: 34451247 PMCID: PMC8400230 DOI: 10.3390/polym13162707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/04/2021] [Accepted: 08/08/2021] [Indexed: 11/16/2022] Open
Abstract
Among the several actions contributing to the development of a sustainable society, there is the eco-design of new plastic materials with zero environmental impact but that are possibly characterized by properties comparable to those of the traditional fossil-based plastics. This action is particularly urgent for food packaging sector, which involves large volumes of plastic products that quickly become waste. This work aims to contribute to the achievement of this important goal, proposing new bio-based cycloaliphatic polymers based on trans-1,4-cyclohexanedicarboxylic acid and containing different amount of camphoric acid (from 0 to 15 mol %), a cheap and bio-based building block. Such chemical modification was conducted in the melt by avoiding the use of solvents. The so-obtained polymers were processed in the form of films by compression molding. Afterwards, the new and successfully synthesized random copolymers were characterized by molecular (NMR spectroscopy and GPC analysis), thermal (DSC and TGA analyses), diffractometric (wide angle X-ray scattering), mechanical (through tensile tests), and O2 and CO2 barrier point of view together with the parent homopolymer. The article aims to relate the results obtained with the amount of camphoric moiety introduced and to present, the different microstructure in the copolymers in more detail; indeed, in these samples, a different crystalline form developed (the so-called β-PBCE). This latter form was the kinetically favored and less packed one, as proven by the lower equilibrium melting temperature determined for the first time by Baur's equation.
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Affiliation(s)
- Giulia Guidotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (G.B.); (A.M.); (N.L.)
| | - Gianfranco Burzotta
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (G.B.); (A.M.); (N.L.)
| | - Michelina Soccio
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (G.B.); (A.M.); (N.L.)
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, 40126 Bologna, Italy
| | - Massimo Gazzano
- Institute of Organic Synthesis and Photoreactivity, ISOF-CNR, Via Gobetti 101, 40129 Bologna, Italy;
| | - Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Andrea Munari
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (G.B.); (A.M.); (N.L.)
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, 40126 Bologna, Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Via Terracini 28, 40131 Bologna, Italy; (G.G.); (G.B.); (A.M.); (N.L.)
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, 40126 Bologna, Italy
- Interdepartmental Center for Agro-Food Research, CIRI-AGRO, University of Bologna, 40126 Bologna, Italy
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4
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Lende AB, Bhattacharjee S, Tan CS. Production of Environmentally Friendly Polyester by Hydrogenation of Poly(butylene terephthalate) over Rh–Pt Catalysts Supported on Carbon Black and Recovery by a Compressed CO2 Antisolvent Technique. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Avinash B. Lende
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Saurav Bhattacharjee
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Chung-Sung Tan
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
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5
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Dominici F, Gigli M, Armentano I, Genovese L, Luzi F, Torre L, Munari A, Lotti N. Improving the flexibility and compostability of starch/poly(butylene cyclohexanedicarboxylate)-based blends. Carbohydr Polym 2020; 246:116631. [PMID: 32747266 DOI: 10.1016/j.carbpol.2020.116631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/29/2020] [Accepted: 06/09/2020] [Indexed: 01/20/2023]
Abstract
Fully biobased blends of thermoplastic starch and a poly(butylene cyclohexanedicarboxylate)-based random copolyester containing 25 % of adipic acid co-units (PBCEA) are prepared by melt blending and direct extrusion film casting. The obtained films are characterized from the physicochemical and mechanical point of view and their fragmentation under composting conditions is evaluated. The results demonstrate that the introduction of adipic acid co-units in the PBCE macromolecular chains permits to decrease the blending temperature, thus avoiding unwanted starch degradation reactions. Moreover, the presence of small amounts of citric acid as compatibilizer further improves the interfacial adhesion between the two components and promotes the formation of micro-porosities within the films. The synergistic combination of these factors leads to the development of materials showing an elastomeric behavior, i.e. no evident yield and elongation at break higher than 450 %, good moisture resistance and fast fragmentation in compost.
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Affiliation(s)
- Franco Dominici
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, Terni Italy
| | - Matteo Gigli
- Department of Molecular Sciences and Nanosystems, Ca'Foscari University of Venice, Venice Italy.
| | - Ilaria Armentano
- Department of Economics, Engineering, Society and Business Organization (DEIm), University of Tuscia, Viterbo Italy
| | - Laura Genovese
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Bologna Italy
| | - Francesca Luzi
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, Terni Italy
| | - Luigi Torre
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, Terni Italy
| | - Andrea Munari
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Bologna Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna, Bologna Italy.
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6
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Siracusa V, Karpova S, Olkhov A, Zhulkina A, Kosenko R, Iordanskii A. Gas Transport Phenomena and Polymer Dynamics in PHB/PLA Blend Films as Potential Packaging Materials. Polymers (Basel) 2020; 12:polym12030647. [PMID: 32178319 PMCID: PMC7182844 DOI: 10.3390/polym12030647] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/19/2022] Open
Abstract
Actually, in order to replace traditional fossil-based polymers, many efforts are devoted to the design and development of new and high-performance bioplastics materials. Poly(hydroxy alkanoates) (PHAS) as well as polylactides are the main candidates as naturally derived polymers. The intention of the present study is to manufacture fully bio-based blends based on two polyesters: poly (3-hydroxybutyrate) (PHB) and polylactic acid (PLA) as real competitors that could be used to replace petrol polymers in packaging industry. Blends in the shape of films have been prepared by chloroform solvent cast solution methodology, at different PHB/PLA ratios: 1/0, 1/9, 3/7, 5/5, 0/1. A series of dynamic explorations have been performed in order to characterize them from a different point of view. Gas permeability to N2, O2, and CO2 gases and probe (TEMPO) electron spin resonance (ESR) analyses were performed. Blend surface morphology has been evaluated by Scanning Electron Microscopy (SEM) while their thermal behavior was analyzed by Differential Scanning Calorimetry (DSC) technique. Special attention was devoted to color and transparency estimation. Both probe rotation mobility and N2, O2, and CO2 permeation have monotonically decreased during the transition from PLA to PHB, for all contents of bio-blends, namely because of transferring from PLA with lower crystallinity to PHB with a higher one. Consequently, the role of the crystallinity was elucidated. The temperature dependences for CO2 permeability and diffusivity as well as for probe correlation time allowed the authors to evaluate the activation energy of both processes. The values of gas transport energy activation and TEMPO rotation mobility are substantially close to each other, which should testify that polymer segmental mobility determines the gas permeability modality.
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Affiliation(s)
- Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
- Correspondence: ; Tel.: +39-3387275526
| | - Svetlana Karpova
- Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russian Federation; (S.K.); (A.O.)
| | - Anatoliy Olkhov
- Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russian Federation; (S.K.); (A.O.)
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Anna Zhulkina
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Regina Kosenko
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Alexey Iordanskii
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
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7
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Evaluation of biological degradation of polyurethanes. Biotechnol Adv 2020; 39:107457. [DOI: 10.1016/j.biotechadv.2019.107457] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 08/28/2019] [Accepted: 09/30/2019] [Indexed: 12/15/2022]
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8
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Prowans P, Kowalczyk R, Wiszniewska B, Czapla N, Bargiel P, El Fray M. Bone Healing in the Presence of a Biodegradable PBS-DLA Copolyester and Its Composite Containing Hydroxyapatite. ACS OMEGA 2019; 4:19765-19771. [PMID: 31788608 PMCID: PMC6882124 DOI: 10.1021/acsomega.9b02539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
The healing process of the fractured bone in a presence of poly(butylene succinate-butylene dilinoleate) (PBS-DLA) copolymer containing nanosized hydroxyapatite (HAP) particles has been investigated. The PBS-DLA material containing PBS hard segments and DLA soft segments (50:50 wt %) was used to prepare a polymer/ceramic composite with 30 wt % HAP. A new PBS-DLA copolymer showed a high elasticity of 500% and 15 MPa tensile strength. Addition of HAP improved tensile strength up to 25 MPa while high elasticity has been preserved going down only to 300% of elongation at break. A polymer nanocomposite was fabricated into small elastic polymer rods 15 mm long and 1 × 2 mm in cross section and used for tibia bone fixation in rats. Mallory trichrome staining indicated that new biodegradable copolymers and its composite containing HAP have triggered the most advanced bone healing of all tested materials, thus indicating their high potential for bone tissue engineering and repair.
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Affiliation(s)
- Piotr Prowans
- Clinic
of Plastic, Endocrine and General Surgery, Pomeranian Medical University, ul. Siedlecka 2, 72-010 Police, Poland
| | - Robert Kowalczyk
- Clinic
of Maxillofacial Surgery, Pomeranian Medical
University, ul. Unii
Lubelskiej 1, 71-252 Szczecin, Poland
| | - Barbara Wiszniewska
- Department
of Histology and Embryology, Pomeranian
Medical University, Al.
Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Norbert Czapla
- Clinic
of Plastic, Endocrine and General Surgery, Pomeranian Medical University, ul. Siedlecka 2, 72-010 Police, Poland
| | - Piotr Bargiel
- Clinic
of Plastic, Endocrine and General Surgery, Pomeranian Medical University, ul. Siedlecka 2, 72-010 Police, Poland
| | - Miroslawa El Fray
- Department
of Polymer and Biomaterials Science, Faculty of Chemical Technology
and Engineering, West Pomeranian University
of Technology, Szczecin, Al. Piastow 45, 71-311 Szczecin, Poland
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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]
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10
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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.
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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.
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11
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Ordered structures of poly(butylene 2,5-thiophenedicarboxylate) and their impact on material functional properties. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Recent Advances in Nanocomposites Based on Aliphatic Polyesters: Design, Synthesis, and Applications in Regenerative Medicine. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8091452] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the last decade, biopolymer matrices reinforced with nanofillers have attracted great research efforts thanks to the synergistic characteristics derived from the combination of these two components. In this framework, this review focuses on the fundamental principles and recent progress in the field of aliphatic polyester-based nanocomposites for regenerative medicine applications. Traditional and emerging polymer nanocomposites are described in terms of polymer matrix properties and synthesis methods, used nanofillers, and nanocomposite processing and properties. Special attention has been paid to the most recent nanocomposite systems developed by combining alternative copolymerization strategies with specific nanoparticles. Thermal, electrical, biodegradation, and surface properties have been illustrated and correlated with the nanoparticle kind, content, and shape. Finally, cell-polymer (nanocomposite) interactions have been described by reviewing analysis methodologies such as primary and stem cell viability, adhesion, morphology, and differentiation processes.
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13
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Guidotti G, Soccio M, Siracusa V, Gazzano M, Munari A, Lotti N. Novel Random Copolymers of Poly(butylene 1,4-cyclohexane dicarboxylate) with Outstanding Barrier Properties for Green and Sustainable Packaging: Content and Length of Aliphatic Side Chains as Efficient Tools to Tailor the Material's Final Performance. Polymers (Basel) 2018; 10:E866. [PMID: 30960791 PMCID: PMC6404084 DOI: 10.3390/polym10080866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/05/2022] Open
Abstract
The present paper describes the synthesis of novel bio-based poly(butylene 1,4-cyclohexane dicarboxylate)-containing random copolymers for sustainable and flexible packaging applications. On one side, the linear butylene moiety has been substituted by glycol subunits with alkyl pendant groups of different length. On the other side, copolymers with different cis/trans isomer ratio of cyclohexane rings have been synthesized. The prepared samples were subjected to molecular, thermal, diffractometric, and mechanical characterization. The barrier performances to O₂, CO₂, and N₂ gases were also evaluated. The presence of side alkyl groups did not alter the thermal stability, whereas it significantly influences the formation of ordered phases that deeply affect the functional properties, mainly in terms of mechanical response and barrier performance. In particular, the final materials present higher flexibility and significantly improved barrier properties with respect to the homopolymer and most polymers widely employed for flexible packaging. The improvement due to copolymerization was more pronounced in the case of higher co-unit-containing copolymers and for the samples with cyclohexane rings in the trans conformation.
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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.
| | - Valentina Siracusa
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Massimo Gazzano
- Organic Synthesis and Photoreactivity Institute, ISOF-CNR, Via Gobetti 101, 40129 Bologna, Italy.
| | - 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.
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14
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Genovese L, Soccio M, Lotti N, Munari A, Szymczyk A, Paszkiewicz S, Linares A, Nogales A, Ezquerra TA. Effect of chemical structure on the subglass relaxation dynamics of biobased polyesters as revealed by dielectric spectroscopy: 2,5-furandicarboxylic acid vs. trans-1,4-cyclohexanedicarboxylic acid. Phys Chem Chem Phys 2018; 20:15696-15706. [PMID: 29850678 DOI: 10.1039/c8cp01810c] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The chemical structure-dynamics relationship for poly(trimethylene 2,5-furanoate) and poly(trimethylene 1,4-cyclohexanedicarboxylate) was investigated via dielectric spectroscopy and compared with that of poly(trimethylene terephthalate) in order to evaluate the impact on the subglass dynamics of the chemical nature of the ring. Further comparison was accomplished with the neopentyl glycol containing counterparts: poly(neopentyl 2,5-furanoate) and poly(neopentyl 1,4-cyclohexanedicarboxylate). Our study reveals a multimodal nature of the subglass β process. For the more flexible polymers (containing cyclohexane rings) three modes for the β process were detected. The faster mode was assigned to the relaxation of the oxygen linked to the aliphatic carbon, the slower one to the link between the aliphatic ring and the ester group, and the third mode to the aliphatic ring. For stiffer polymers (containing aromatic rings), the local modes appear more coupled. This effect is more evident in the polymers with the furan ring where essentially a single β mode can be resolved.
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Affiliation(s)
- L Genovese
- Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Universitá di Bologna, Via Terracini 28, Bologna 40131, Italy.
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15
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Salehi A, Jafari SH, Khonakdar HA, Ebadi-Dehaghani H. Temperature dependency of gas barrier properties of biodegradable PP/PLA/nanoclay films: Experimental analyses with a molecular dynamics simulation approach. J Appl Polym Sci 2018. [DOI: 10.1002/app.46665] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abolfazl Salehi
- School of Chemical Engineering, College of Engineering; University of Tehran, P.O. Box 11155-4563; Tehran Iran
| | - Seyed Hassan Jafari
- School of Chemical Engineering, College of Engineering; University of Tehran, P.O. Box 11155-4563; Tehran Iran
| | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute, P.O. Box 14965/115; Tehran Iran
- Leibniz Institute of Polymer Research; Dresden D-01067 Germany
| | - Hassan Ebadi-Dehaghani
- Polymer Department; Shahreza Branch, Islamic Azad University, P.O. Box 86145-311; Shahreza Iran
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16
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Guidotti G, Gigli M, Soccio M, Lotti N, Salatelli E, Gazzano M, Siracusa V, Munari A. Tailoring poly(butylene 2,5-thiophenedicarboxylate) features by the introduction of adipic acid co-units: Biobased and biodegradable aliphatic/aromatic polyesters. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.04.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Siracusa V, Genovese L, Ingrao C, Munari A, Lotti N. Barrier Properties of Poly(Propylene Cyclohexanedicarboxylate) Random Eco-Friendly Copolyesters. Polymers (Basel) 2018; 10:E502. [PMID: 30966536 PMCID: PMC6415378 DOI: 10.3390/polym10050502] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 11/16/2022] Open
Abstract
Random copolymers of poly(propylene 1,4-cyclohexanedicarboxylate) containing different amounts of neopentyl glycol sub-unit were investigated from the gas barrier point of view at the standard temperature of analysis (23 °C) with respect to the three main gases used in food packaging field: N₂, O₂, and CO₂. The effect of temperature was also evaluated, considering two temperatures close to the Tg sample (8 and 15 °C) and two above Tg (30 and 38 °C). Barrier performances were checked after food contact simulants and in different relative humidity (RH) environments obtained with two saturated saline solutions (Standard Atmosphere, 23 °C, 85% of RH, with saturated KCl solution; Tropical Climate, 38 °C, 90% RH, with saturated KNO₃ solution). The results obtained were compared to those of untreated film, which was used as a reference. The relationships between the gas transmission rate, the diffusion coefficients, the solubility, and the copolymer composition were established. The results highlighted a correlation between barrier performance and copolymer composition and the applied treatment. In particular, copolymerization did not cause a worsening of the barrier properties, whereas the different treatments differently influenced the gas barrier behavior, depending on the chemical polymer structure. After treatment, Fourier transform infrared analysis confirmed the chemical stability of these copolymers. Films were transparent, with a light yellowish color, slightly more intense after all treatments.
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Affiliation(s)
- Valentina Siracusa
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania (CT), Italy.
| | - Laura Genovese
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna (BO), Italy.
| | - Carlo Ingrao
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125 Catania (CT), Italy.
| | - Andrea Munari
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna (BO), Italy.
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna (BO), Italy.
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18
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Qiu J, Liu F, Zhang J, Chen J, Na H, Zhu J. Controlling the stereostructure of non-planar ring to induce the transition from plastic to elastomer in poly(butylene adipate-co-1,4-cyclohexane dicarboxylate) and implement of polylactic acid toughness. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jia Qiu
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
| | - Fei Liu
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
| | - Junwu Zhang
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
| | - Jing Chen
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
| | - Haining Na
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
| | - Jin Zhu
- Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo City Zhejiang Province 315201 People's Republic of China
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19
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Liu F, Qiu J, Wang J, Zhang J, Na H, Zhu J. Role of cis-1,4-cyclohexanedicarboxylic acid in the regulation of the structure and properties of a poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) copolymer. RSC Adv 2016. [DOI: 10.1039/c6ra13495e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
cis-PBC plays both rigid and flexible roles in a PBAC copolymer, a copolymer that could be considered as a triblock random copolyester.
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Affiliation(s)
- Fei Liu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
| | - Jia Qiu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
| | - Jinggang Wang
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
| | - Junwu Zhang
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
| | - Haining Na
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
| | - Jin Zhu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P.R. China
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20
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Liu W, Zhang R, Huang M, Dong X, Xu W, Wang Y, Hu GH, Zhu J. Synthesis and shape memory property of segmented poly(ester urethane) with poly(butylene 1,4-cyclohexanedicarboxylate) as the soft segment. RSC Adv 2016. [DOI: 10.1039/c6ra16325d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Shape memory property of segmented poly(ester urethane) with poly(butylene 1,4-cyclohexanedicarboxylate) as the soft segment.
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Affiliation(s)
- Wei Liu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Ruoyu Zhang
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Miaoming Huang
- CAS Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xia Dong
- CAS Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Wei Xu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Yubin Wang
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Guo-Hua Hu
- Laboratory of Reactions and Process Engineering
- Université de Lorraine-CNRS
- 54001 Nancy
- France
| | - Jin Zhu
- Ningbo Key Laboratory of Polymer Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
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