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Relevant bibliographies by topics / Aromatic polyurethanes

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Journal articles

Academic literature on the topic 'Aromatic polyurethanes'

Author: Grafiati

Published: 28 June 2023

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Journal articles on the topic "Aromatic polyurethanes"

1

Morgan, Paul W. "Polyurethanes from aromatic bischlorformates." Journal of Applied Polymer Science 40, no. 910 (1990): 1771–82. http://dx.doi.org/10.1002/app.1990.070400930.

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2

Chalid, Mochamad, Hans J. Heeres та Antonius A. Broekhuis. "A Study on the Structure of Novel Polyurethanes Derived from γ-Valerolactone-Based Diol Precursors". Advanced Materials Research 789 (вересень 2013): 274–78. http://dx.doi.org/10.4028/www.scientific.net/amr.789.274.

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As versatile biomass-based diol precursors, N,N'-1,2-ethanediylbis-(4-hydroxy-pentanamide) (1) and 4-hydroxy-N-(2-hydroxyethyl)-pentanamide (2) are potential monomers to synthesize novel polyurethanes through adding di-isocyanates. This study reported the structural analysis and molecular behavior of polyurethanes obtained from polymerization of the diol precursors with aliphatic and aromatic di-isocyanates (hexamethylene diisocyanate, HDI (3), and phenyl-diisocyanate, PDI (4)) in (N,N-dimethylacetamide (DMA) solvents with triethylamine (TEA) catalysts.1H-NMR,13C-NMR and Elemental Analysis con

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3

Briz-López, Eva Marina, Rodrigo Navarro, Héctor Martínez-Hernández, Lucía Téllez-Jurado, and Ángel Marcos-Fernández. "Design and Synthesis of Bio-Inspired Polyurethane Films with High Performance." Polymers 12, no. 11 (2020): 2727. http://dx.doi.org/10.3390/polym12112727.

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In the present work, the synthesis of segmented polyurethanes functionalized with catechol moieties within the hard or the soft segment is presented. For this purpose, a synthetic route of a new catechol diol was designed. The direct insertion of this catechol-free derivative into the rigid phase led to segmented polyurethanes with low performance (σmax ≈ 4.5 MPa). Nevertheless, when the derivative was formally located within the soft segment, the mechanical properties of the corresponding functionalized polyurethane improved considerably (σmax ≈ 16.3 MPa), owing to a significant increase in t

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4

Zahedifar, Pegah, Lukasz Pazdur, Christophe M. L. Vande Velde, and Pieter Billen. "Multistage Chemical Recycling of Polyurethanes and Dicarbamates: A Glycolysis–Hydrolysis Demonstration." Sustainability 13, no. 6 (2021): 3583. http://dx.doi.org/10.3390/su13063583.

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The use of polyurethanes and, therefore, the quantity of its scrap are increasing. Considering the thermoset characteristic of most polyurethanes, the most circular recycling method is by means of chemical depolymerization, for which glycolysis is finding its way into the industry. The main goal of polyurethane glycolysis is to recover the polyols used, but only limited attempts were made toward recovering the aromatic dicarbamate residues and derivates from the used isocyanates. By the split-phase glycolysis method, the recovered polyols form a top-layer phase and the bottom layer contain tra

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5

Jayasuriya, A. C., S. Tasaka, and N. Inagaki. "Pyroelectric properties of linear aromatic polyurethanes." IEEE Transactions on Dielectrics and Electrical Insulation 3, no. 6 (1996): 765–69. http://dx.doi.org/10.1109/94.556557.

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6

Gouveia, Júlia Rocha, Cleber Lucius da Costa, Lara Basílio Tavares, and Demetrio Jackson dos Santos. "Synthesis of Lignin-Based Polyurethanes: A Mini-Review." Mini-Reviews in Organic Chemistry 16, no. 4 (2019): 345–52. http://dx.doi.org/10.2174/1570193x15666180514125817.

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Lignin is a natural polymer composed primarily of phenylpropanoid structures with an abundance of reactive groups: aliphatic and aromatic hydroxyls, phenols, and carbonyls. Considering the large quantity of hydroxyl groups, lignin has significant potential as a replacement for petroleum-based polyols in polyurethane (PU) synthesis and as a value-added, renewable raw material for this purpose. Several methods of lignin-based polyurethane synthesis are reviewed in this paper for reactive and thermoplastic systems: direct lignin incorporation, chemical lignin modification and depolymerization. De

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7

Mendelsohn, Morris A., Francis W. Navish, and Dongsik Kim. "Characteristics of a Series of Energy-Absorbing Polyurethane Elastomers." Rubber Chemistry and Technology 58, no. 5 (1985): 997–1013. http://dx.doi.org/10.5254/1.3536110.

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Abstract Compositional effects were measured on a series of polyurethanes prepared by extending MDI-terminated PTMG prepolymers with dihydric alcohols and MCHDI-terminated prepolymers with diamines. The tensile and compressive stiffness and hysteretic loss increased while the resilience decreased with a decrease in the isocyanate equivalent weight of the prepolymer. Polyol chain extenders having an aromatic structure provided greater rigidity and increase in temperature on compressive cycling than did their aliphatic counterparts. Structural linearity and symmetry of both the aliphatic and aro

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8

Jourdain, Antoine, Iurii Antoniuk, Anatoli Serghei, Eliane Espuche, and Eric Drockenmuller. "1,2,3-Triazolium-based linear ionic polyurethanes." Polymer Chemistry 8, no. 34 (2017): 5148–56. http://dx.doi.org/10.1039/c7py00406k.

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We report the synthesis and detailed characterization of a series of ionic polyurethanes issued from the polyaddition of a 1,2,3-triazolium-functionalized diol monomer having a bis(trifluoromethylsulfonyl)imide counter-anion with four aliphatic, cycloaliphatic or aromatic commercial diisocyanates.

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9

Rapone, Irene, Vincenzo Taresco, Valerio Di Lisio, Antonella Piozzi, and Iolanda Francolini. "Silver- and Zinc-Decorated Polyurethane Ionomers with Tunable Hard/Soft Phase Segregation." International Journal of Molecular Sciences 22, no. 11 (2021): 6134. http://dx.doi.org/10.3390/ijms22116134.

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Segmented polyurethane ionomers find prominent applications in the biomedical field since they can combine the good mechanical and biostability properties of polyurethanes (PUs) with the strong hydrophilicity features of ionomers. In this work, PU ionomers were prepared from a carboxylated diol, poly(tetrahydrofuran) (soft phase) and a small library of diisocyanates (hard phase), either aliphatic or aromatic. The synthesized PUs were characterized to investigate the effect of ionic groups and the nature of diisocyanate upon the structure–property relationship. Results showed how the polymer ha

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10

Kimura, Akihiro, Haruka Hayama, Jun-ya Hasegawa, et al. "Recyclable and efficient polyurethane-Ir catalysts for direct borylation of aromatic compounds." Polymer Chemistry 8, no. 47 (2017): 7406–15. http://dx.doi.org/10.1039/c7py01509g.

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