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Bradshaw JJ, Brown MA, Bien AG, Gan RZ. 3D finite element modeling of earplug-induced occlusion effect in the human ear. Med Eng Phys 2024; 129:104192. [PMID: 38906574 DOI: 10.1016/j.medengphy.2024.104192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/27/2024] [Accepted: 06/08/2024] [Indexed: 06/23/2024]
Abstract
Poor utilization of earplugs among military personnel may be due to discomfort caused by the occlusion effect (OE). The OE occurs when an earplug occludes the ear canal, thereby changing bone conduction (BC) hearing and amplifying physiological noises from the wearer. There is a need to understand and reduce the OE in the human ear. A 3D finite element model of the human ear including a 3-chambered spiral cochlea was employed to simulate the OE caused by foam and aerogel earplugs. 90 dB sound pressure was applied at the ear canal entrance and BC sound was applied as vibration of the canal bony wall. The model reported the ear canal pressure and the displacements of the stapes footplate and cochlear basilar membrane with and without earplugs. Without BC stimulation, the foam earplug showed a greater pressure attenuation than the aerogel earplug. However, the foam earplug results were more affected by BC stimulation, with a maximum sound pressure increase of 34 dB, compared to the 21.0 dB increase with the aerogel earplug. The aerogel earplug's lower OE demonstrates its promise as an earplug material. Future work with this model will examine BC sound transmission in the cochlea.
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Affiliation(s)
- John J Bradshaw
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA
| | - Marcus A Brown
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA
| | - Alexander G Bien
- Department of Otolaryngology-Head and Neck Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Rong Z Gan
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019, USA.
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2
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Zhang X, Sun Q, Liang X, Gu P, Hu Z, Yang X, Liu M, Sun Z, Huang J, Wu G, Zu G. Stretchable and negative-Poisson-ratio porous metamaterials. Nat Commun 2024; 15:392. [PMID: 38195718 PMCID: PMC10776607 DOI: 10.1038/s41467-024-44707-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/28/2023] [Indexed: 01/11/2024] Open
Abstract
Highly stretchable porous materials are promising for flexible electronics but their fabrication is a great challenge. Herein, several kinds of highly stretchable conductive porous elastomers with low or negative Poisson's ratios are achieved by uniaxial, biaxial, and triaxial hot-pressing strategies. The reduced graphene oxide/polymer nanocomposite elastomers with folded porous structures obtained by uniaxial hot pressing exhibit high stretchability up to 1200% strain. Furthermore, the meta-elastomers with reentrant porous structures combining high biaxial (or triaxial) stretchability and negative Poisson's ratios are achieved by biaxial (or triaxial) hot pressing. The resulting elastomer-based wearable strain sensors exhibit an ultrawide response range (0-1200%). The materials can be applied for smart thermal management and electromagnetic interference shielding, which are achieved by regulating the porous microstructures via stretching. This work provides a versatile strategy to highly stretchable and negative-Poisson-ratio porous materials with promising features for various applications such as flexible electronics, thermal management, electromagnetic shielding, and energy storage.
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Affiliation(s)
- Xiaoyu Zhang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Qi Sun
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Xing Liang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Puzhong Gu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Zhenyu Hu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Xiao Yang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Muxiang Liu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Zejun Sun
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Jia Huang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Guangming Wu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Guoqing Zu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China.
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Gupta P, Sathwane M, Chhajed M, Verma C, Grohens Y, Seantier B, Agrawal AK, Maji PK. Surfactant Assisted In Situ Synthesis of Nanofibrillated Cellulose/Polymethylsilsesquioxane Aerogel for Tuning Its Thermal Performance. Macromol Rapid Commun 2023; 44:e2200628. [PMID: 36239163 DOI: 10.1002/marc.202200628] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/29/2022] [Indexed: 01/26/2023]
Abstract
Nanofibrillated cellulose (NFC) and polymethylsilsesquioxane (PMSQ) based aerogel are prepared by the sol-gel method. The objective of this work is to study the impact of surfactant and base catalyst on the thermal and mechanical performance of the corresponding aerogel. The rheological premonitory assists in predicting the bulk properties of the aerogel. The chemical structure of the aerogel is studied by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and solid-state nuclear magnetic resonance (NMR). X-ray microtomographic (XMT) analysis confirms the homogeneous and monolithic structure of the aerogel. The lowest thermal conductivity is achieved as 23.21 mW m-1 K-1 with V-0 and HBF rating through UL-94 test. Thermal performance of aerogels is cross-verified through modeling and simulation in COMSOL multiphysics platform. The mechanical properties of aerogel are evaluated by monolithic compression test in axial and radial compression test up to 90% strain, cyclic compression loading-unloading, and reloading test, flexural test, and dynamic mechanical analysis. The time-temperature analysis has shown around 5 °C temperature difference in the middle of the room after using the aerogel panel at the exposed surface, which assists in the practical application of the synthesized aerogel panel.
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Affiliation(s)
- Pragya Gupta
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
| | - Manoj Sathwane
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
| | - Monika Chhajed
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
| | - Chhavi Verma
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
| | - Yves Grohens
- Univ. Bretagne Sud, UMR CNRS 6027, IRDL, Lorient, F-56100, France
| | - Bastien Seantier
- Univ. Bretagne Sud, UMR CNRS 6027, IRDL, Lorient, F-56100, France
| | - Ashish K Agrawal
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Pradip K Maji
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
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4
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Polyimide aerogels for ballistic impact protection. Sci Rep 2022; 12:13933. [PMID: 35978097 PMCID: PMC9385616 DOI: 10.1038/s41598-022-18247-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022] Open
Abstract
The ballistic performance of edge-clamped monolithic polyimide aerogel blocks (12 mm thickness) has been studied through a series of impact tests using a helium-filled gas gun connected to a vacuum chamber and a spherical steel projectile (approximately 3 mm diameter) with an impact velocity range of 150–1300 m s−1. The aerogels had an average bulk density of 0.17 g cm−3 with high porosity of approximately 88%. The ballistic limit velocity of the aerogels was estimated to be in the range of 175–179 m s−1. Moreover, the aerogels showed a robust ballistic energy absorption performance (e.g., at the impact velocity of 1283 m s−1 at least 18% of the impact energy was absorbed). At low impact velocities, the aerogels failed by ductile hole enlargement followed by a tensile failure. By contrast, at high impact velocities, the aerogels failed through an adiabatic shearing process. Given the substantially robust ballistic performance, the polyimide aerogels have a potential to combat multiple constraints such as cost, weight, and volume restrictions in aeronautical and aerospace applications with high blast resistance and ballistic performance requirements such as in stuffed Whipple shields for orbital debris containment application.
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Chhajed M, Verma C, Sathawane M, Singh S, Maji PK. Mechanically durable green aerogel composite based on agricultural lignocellulosic residue for organic liquids/oil sorption. MARINE POLLUTION BULLETIN 2022; 180:113790. [PMID: 35689938 DOI: 10.1016/j.marpolbul.2022.113790] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Various oil spill cleanup sorbents have good hydrophobicity and oil separation efficiency, but their practical use has been limited due to the difficult and costly fabrication procedure. The research aims towards material development using the consumption of lignocellulosic agricultural residue for isolating cellulose nanofiber and its forward use to construct a 3D porous structure. A simple freeze-drying technique was used to assemble low-density porous structure. The biodegradable polylactic acid coating was used to alter the wettability from hydrophilic to hydrophobic and the maximum water contact angle value was around 120°. The prepared coated samples were testified for a series of oil/organic solvents-water mixtures. The sorption capacity was in the range of 28-70 g/g. The prepared aerogels were efficiently reused for at least 10 cycles. Developed material was used in continuous oil-water separation to remove oil from the water's surface. The cost analysis was estimated for scaleup production in the future.
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Affiliation(s)
- Monika Chhajed
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, U.P., India
| | - Chhavi Verma
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, U.P., India
| | - Manoj Sathawane
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, U.P., India
| | - Shiva Singh
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, U.P., India
| | - Pradip K Maji
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, U.P., India.
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Saganuwan SA. Biomedical Applications of Polyurethane Hydrogels, Polyurethane Aerogels and Polyurethane-Graphene Nanocomposite Materials. Cent Nerv Syst Agents Med Chem 2022; 22:79-87. [PMID: 35507789 DOI: 10.2174/1871524922666220429115124] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 01/06/2022] [Accepted: 02/05/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Increasing new emerging ill-healths have posed therapeutic challenges in modern medicine. Hence polyurethane hydrogels that comprise polyol, copolymer and extender could be prepared from diverse chemical compounds with adjuvants such as ascorbic acid, sorbitol among others. Their mechano-physicochemical properties are functions of their biological activities. Therefore there is need to assess their therapeutic potentials. METHODS literature were searched on synthesis and medical uses of polyurethane - hydrogels, polyurethane - aerogels and polyurethane - graphene nanocomposite materials, with a view to identifying their sources, synthesis, mechanical and physiochemical properties, biomedical applications, chirality, and the relevance of Lipinski's rule of five in the synthesis of oral polyurethane nanocomposite materials. RESULTS The prepared hydrogels and aerogels could be used as polymer carriers for intradermal, cutaneous and intranasal drugs. They can be fabricated and used as prosthetics. In addition the strength modulus (tensile stress-tensile strain ratio), biodegradability, biocompatibility and non-toxic effects of the polyurethane hydrogels and aerogels are the highly desirable properties. However, body and environmental temperatures may contribute to their instability, hence there is need to improve on the synthesis of aerogels and hydrogels of polyurethane that can last for many years. Alcoholism, diabetes, pyrogenic diseases, mechanical and physical forces, and physiological variability may also reduce the life span of polyurethane aerogels and hydrogels. CONCLUSION Synthesis of polyurethane hydrogel-aerogel complex that can be used in complex, rare biomedical cases is of paramount importance. These hydrogels and aerogels may be hydrophobic, hydrophilic, aerophobic-aerophilic or amphiphilic and sometimes lipophilic depending on structural components and the intended biomedical uses. Polyurethane graphene nanocomposite materials are used in the treatment of a myriad of diseases including cancer and bacterial infection.
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Affiliation(s)
- Saganuwan Alhaji Saganuwan
- Department Of Veterinary Pharmacology And Toxicology, College Of Veterinary Medicine, Federal University Of Agriculture P.M.B 2373, Makurdi, Benue State, Nigeria
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Sun M, Li C, Feng J, Sun H, Sun M, Feng Y, Ji X, Han S, Feng J. Development of aerogels in solid-phase extraction and microextraction. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116497] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Li J, Jiang S, Ding L, Wang L. Reaction kinetics and properties of MDI base poly (urethane-isocyanurate) network polymers. Des Monomers Polym 2021; 24:265-273. [PMID: 34471398 PMCID: PMC8405120 DOI: 10.1080/15685551.2021.1971858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/19/2021] [Indexed: 11/25/2022] Open
Abstract
Since the trimerization of isocyanate occurs easily and controllably to form a clear trifunctional isocyanate ring, this reaction is an ideal candidate for the synthesis of a clear poly(urethane-isocyanurate) network polymer. Poly(urethane-isocyanurate) network polymer (PUI) was prepared from diphenylmethane diisocyanate (MDI) and propylene glycol (PPG) by cyclotrimerization of isocyanate group (NCO). It was proved that the expected product was successfully prepared by NCO determination, fourier transform infrared (FTIR) and gel permeation chromatography (GPC) characterization. The mechanical and thermal properties were characterized. Through the effects of catalyst dosage, polyurethane prepolymer molecular weight, reaction time, reaction temperature and MDI addition on the reaction process, it is determined that under certain other conditions, the step heating method is better for cyclotrimerization reaction. Generally, the better heating conditions are 60 °C/1 h + 80 °C/4 h + 100 °C/2 h + 120 °C/2 h + 140 °C/2 h + 160 °C/2 h. The results of thermogravimetric analysis (TGA) and mechanical properties showed that with the increase of cross-linking points in the polymer structure, the thermal stability, tensile strength, tensile modulus and hardness of PUI increased, while the elongation at break decreased significantly. The glass transition temperature (Tg) of PUI is around 45 °C, and it can be seen that the elastic modulus of the material can range from 58 to 1980 MPa. X-ray diffraction results show that the rubber phase represented by the flexible segment and the plastic phase represented by the rigid structure are amorphous.
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Affiliation(s)
- Juan Li
- Department of Polymer and Composite Material, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China
| | - Shengling Jiang
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Liang Ding
- Department of Polymer and Composite Material, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China
| | - Lingfang Wang
- Department of Polymer and Composite Material, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, China
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Caccavo D, Cavallo R, Abrami M, Grassi M, Barba AA, Lamberti G. Dynamometric measurements of hydrogels' mechanical spectra. J Appl Polym Sci 2021. [DOI: 10.1002/app.50702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Diego Caccavo
- Department of Industrial Engineering University of Salerno Fisciano Salerno Italy
- Department of Pharmacy University of Salerno Fisciano Salerno Italy
- Eng4Life Srl Academic spin‐off Avellino Avellino Italy
| | - Rosario Cavallo
- Department of Industrial Engineering University of Salerno Fisciano Salerno Italy
- Department of Pharmacy University of Salerno Fisciano Salerno Italy
| | - Michela Abrami
- Department of Engineering and Architecture Trieste University Trieste Italy
| | - Mario Grassi
- Department of Engineering and Architecture Trieste University Trieste Italy
| | - Anna Angela Barba
- Department of Pharmacy University of Salerno Fisciano Salerno Italy
- Eng4Life Srl Academic spin‐off Avellino Avellino Italy
| | - Gaetano Lamberti
- Department of Industrial Engineering University of Salerno Fisciano Salerno Italy
- Eng4Life Srl Academic spin‐off Avellino Avellino Italy
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Alekseev ES, Alentiev AY, Belova AS, Bogdan VI, Bogdan TV, Bystrova AV, Gafarova ER, Golubeva EN, Grebenik EA, Gromov OI, Davankov VA, Zlotin SG, Kiselev MG, Koklin AE, Kononevich YN, Lazhko AE, Lunin VV, Lyubimov SE, Martyanov ON, Mishanin II, Muzafarov AM, Nesterov NS, Nikolaev AY, Oparin RD, Parenago OO, Parenago OP, Pokusaeva YA, Ronova IA, Solovieva AB, Temnikov MN, Timashev PS, Turova OV, Filatova EV, Philippov AA, Chibiryaev AM, Shalygin AS. Supercritical fluids in chemistry. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4932] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sala MR, Skalli O, Leventis N, Sabri F. Nerve Response to Superelastic Shape Memory Polyurethane Aerogels. Polymers (Basel) 2020; 12:E2995. [PMID: 33334083 PMCID: PMC7765513 DOI: 10.3390/polym12122995] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 01/05/2023] Open
Abstract
We have previously shown the suitability of aerogels as scaffolds for neuronal cells. Here, we report on the use of superelastic shape memory polyurethane aerogels (SSMPA). SSMPA have a distinctly different stiffness than previously reported aerogels. The soft and deformable nature of SSMPA allowed for radial compression of the aerogel induced by a custom designed apparatus. This radial compression changed the pore diameter and surface roughness (Sa) of SSMPA, while maintaining similar stiffness. Two varieties of SSMPA were used, Mix-14 and Mix-18, with distinctly different pore diameters and Sa. Radial compression led to a decreased pore diameter, which, in turn, decreased the Sa. The use of custom designed apparatus and two types of SSMPA allowed us to examine the influence of stiffness, pore size, and Sa on the extension of processes (neurites) by PC12 neuronal cells. PC12 cells plated on SSMPA with a higher degree of radial compression extended fewer neurites per cell when compared to other groups. However, the average length of the neurites was significantly longer when compared to the unrestricted group and to those extended by cells plated on SSMPA with less radial compression. These results demonstrate that SSMPA with 1.9 µm pore diameter, 1.17 µm Sa, and 203 kPa stiffness provides the optimum combination of physical parameters for nerve regeneration.
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Affiliation(s)
- Martina Rodriguez Sala
- Department of Physics and Materials Science, University of Memphis, Memphis, TN 38152, USA
| | - Omar Skalli
- Department of Biological Science, University of Memphis, Memphis, TN 38152, USA;
| | - Nicholas Leventis
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA;
| | - Firouzeh Sabri
- Department of Physics and Materials Science, University of Memphis, Memphis, TN 38152, USA
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Khedaioui D, Boisson C, D'Agosto F, Montarnal D. Polyethylene Aerogels with Combined Physical and Chemical Crosslinking: Improved Mechanical Resilience and Shape-Memory Properties. Angew Chem Int Ed Engl 2019; 58:15883-15889. [PMID: 31498536 DOI: 10.1002/anie.201908257] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/30/2019] [Indexed: 11/11/2022]
Abstract
While the introduction of polymers into aerogels strongly enhances their toughness, truly elastic monolithic aerogels which restore their dimensions upon extensive compression are still challenging to synthesize. In this context hydrophobic semi-crystalline polymers with low glass transition temperatures, and combined stiffness and flexibility, have only recently attracted attention. Shown here is that polyethylene aerogels with a low density, and combined chemical crosslinking and high crystallinity, display high moduli and excellent mechanical resilience. To maximize the crystallinity of these aerogels while maintaining a high crosslinking density, polyethylene networks with well-defined segments were synthesized by hydrosilylation crosslinking of telechelic, vinyl-functionalized oligomers obtained from catalyzed chain-growth polymerization. Recoverable deformations both above and below the melting temperature of polyethylene affords remarkable shape-memory properties.
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Affiliation(s)
- Douriya Khedaioui
- Univ Lyon. Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes, 43 Bvd du 11 Novembre 1918, 69616, Villeurbanne, France
| | - Christophe Boisson
- Univ Lyon. Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes, 43 Bvd du 11 Novembre 1918, 69616, Villeurbanne, France
| | - Franck D'Agosto
- Univ Lyon. Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes, 43 Bvd du 11 Novembre 1918, 69616, Villeurbanne, France
| | - Damien Montarnal
- Univ Lyon. Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes, 43 Bvd du 11 Novembre 1918, 69616, Villeurbanne, France
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13
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Khedaioui D, Boisson C, D'Agosto F, Montarnal D. Polyethylene Aerogels with Combined Physical and Chemical Crosslinking: Improved Mechanical Resilience and Shape‐Memory Properties. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Douriya Khedaioui
- Univ Lyon. Université Claude Bernard Lyon 1 CPE Lyon CNRS, UMR 5265 Chemistry, Catalysis, Polymers and Processes 43 Bvd du 11 Novembre 1918 69616 Villeurbanne France
| | - Christophe Boisson
- Univ Lyon. Université Claude Bernard Lyon 1 CPE Lyon CNRS, UMR 5265 Chemistry, Catalysis, Polymers and Processes 43 Bvd du 11 Novembre 1918 69616 Villeurbanne France
| | - Franck D'Agosto
- Univ Lyon. Université Claude Bernard Lyon 1 CPE Lyon CNRS, UMR 5265 Chemistry, Catalysis, Polymers and Processes 43 Bvd du 11 Novembre 1918 69616 Villeurbanne France
| | - Damien Montarnal
- Univ Lyon. Université Claude Bernard Lyon 1 CPE Lyon CNRS, UMR 5265 Chemistry, Catalysis, Polymers and Processes 43 Bvd du 11 Novembre 1918 69616 Villeurbanne France
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