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Olszewski A, Ławniczak A, Kosmela P, Strąkowski M, Mielewczyk-Gryń A, Hejna A, Piszczyk Ł. Influence of Surface-Modified Montmorillonite Clays on the Properties of Elastomeric Thin Layer Nanocomposites. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1703. [PMID: 36837332 PMCID: PMC9964914 DOI: 10.3390/ma16041703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/03/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
In recent years, polyurethane nanocomposites have attracted more attention due to the massive demand for materials with increasingly exceptional mechanical, optical, electrical, and thermal properties. As nanofillers have a high surface area, the interaction between the nanofiller and the polymer matrix is an essential issue for these materials. The main aim of this study is to validate the impact of the montmorillonite nanofiller (MMT) surface structure on the properties of polyurethane thin-film nanocomposites. Despite the interest in polyurethane-montmorillonite clay nanocomposites, only a few studies have explored the impact of montmorillonite surface modification on polyurethane's material properties. For this reason, four types of polyurethane nanocomposites with up to 3% content of MMT were manufactured using the prepolymer method. The impact of montmorillonites on nanocomposites properties was tested by thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), contact angle measurement, X-ray diffraction (XRD), and optical coherence tomography (OCT). The results showed that chemical and physical interactions between the polymer matrix and functional groups on the montmorillonite surface have a considerable impact on the final properties of the materials. It was noticed that the addition of MMT changed the thermal decomposition process, increased T2% by at least 14 °C, changed the hydrophilicity of the materials, and increased the glass transition temperature. These findings have underlined the importance of montmorillonite surface structure and interactions between nanocomposite phases for the final properties of nanocomposites.
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Affiliation(s)
- Adam Olszewski
- Department of Polymer Technology, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
| | - Aleksandra Ławniczak
- Department of Polymer Technology, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
| | - Paulina Kosmela
- Department of Polymer Technology, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
| | - Marcin Strąkowski
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
| | - Aleksandra Mielewczyk-Gryń
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
| | - Aleksander Hejna
- Institute of Materials Technology, Poznan University of Technology, Piotrowo 3, 61-138 Poznań, Poland
| | - Łukasz Piszczyk
- Department of Polymer Technology, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdańsk, Poland
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Chen W, Qiao H, Zhang D, Tian X, Jin L. Silane coupling agent γ-aminopropyltriethoxysilane-modified nanoparticles/polyurethane elastomer nanocomposites. IRANIAN POLYMER JOURNAL 2023. [DOI: 10.1007/s13726-023-01152-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Slobodinyuk A, Elchisheva N, Strelnikov V, Chernova G, Slobodinyuk D. Modified oligoether-diamine synthesis for the preparation of crystallizable polymers based on epoxyurethane oligomers. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2022-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
A modified synthetic method for amino-terminated oligo tetramethylene oxides is presented. Diamines were synthesized via a three-step route from oligo tetramethylene oxide diol with an average molecular weight of 2000. The final step – oligoether-diphthalimide hydrazinolysis – has been improved. The yield of the target product has been shown to be more than 1.5 times higher when the molar ratio of the reacting components was changed. The oligoether-diamine and the reaction intermediates have been identified by 1H and 13C NMR spectroscopy. It has been demonstrated that the synthesized amine can be used as a curing agent for epoxy urethane oligomers. It is shown that the glass transition temperature of the cured elastomers is lower than −70 °C. These elastomers can be recommended for the use in the conditions of the Arctic and the Far North or Far South of the globe.
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Affiliation(s)
- Alexey Slobodinyuk
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences , Ac. Korolev st., 3, 614130 Perm , Russia
- Department of Chemical Engineering , Perm National Research Polytechnic University , Komsomolsky prospekt, 29, 614990 Perm , Russia
| | - Nadezhda Elchisheva
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences , Ac. Korolev st., 3, 614130 Perm , Russia
| | - Vladimir Strelnikov
- Russian Academy of Sciences, Director of Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences , Ac. Korolev st., 3, 614130 Perm , Russia
| | - Galina Chernova
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences , Ac. Korolev st., 3, 614130 Perm , Russia
| | - Daria Slobodinyuk
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences , Ac. Korolev st., 3, 614130 Perm , Russia
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Otálora A, Lerma TA, Palencia M. Novel one-pot synthesis of polymeric hydrogels based on isocyanate click chemistry: Structural and functional characterization. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03331-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Meena M, Kerketta A, Tripathi M, Roy P, Jacob J. Thermally stable poly(urethane‐imide)s with enhanced hydrophilicity for waterproof‐breathable textile coatings. J Appl Polym Sci 2022. [DOI: 10.1002/app.52508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mahipal Meena
- Centre for Fire, Explosive and Environment Safety DRDO Delhi India
- Department of Materials Science and Engineering Indian Institute of Technology Delhi India
| | - Anjlina Kerketta
- Centre for Fire, Explosive and Environment Safety DRDO Delhi India
| | | | - Prasun Roy
- Centre for Fire, Explosive and Environment Safety DRDO Delhi India
| | - Josemon Jacob
- Department of Materials Science and Engineering Indian Institute of Technology Delhi India
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