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Flouda P, Inman A, Gumenna M, Bukharina D, Shevchenko VV, Gogotsi Y, Tsukruk VV. Ultrathin Films of MXene Nanosheets Decorated by Ionic Branched Nanoparticles with Enhanced Energy Storage Stability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53776-53785. [PMID: 37935010 PMCID: PMC10685356 DOI: 10.1021/acsami.3c09064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
Two-dimensional (2D) materials such as MXenes have shown great potential for energy storage applications due to their high surface area and high conductivity. However, their practical implementation is limited by their tendency to restack, similar to other 2D materials, leading to a decreased long-term performance. Here, we present a novel approach to addressing this issue by combining MXene (Ti3C2Tx) nanosheets with branched ionic nanoparticles from polyhedral oligomeric silsesquioxanes (POSS) using an amphiphilicity-driven assembly for the formation of composite monolayers of nanoparticle-decorated MXene nanosheets at the air-water interface. The amphiphilic hybrid MXene/POSS monolayers allow for the fabrication of organized multilayered films with ionic nanoparticles supporting the nanoscale gap between MXene nanosheets. For these composite multilayers, we observed a 400% enhancement in specific capacitance compared to pure drop-cast MXene films. Furthermore, dramatically enhanced electrochemical cycling stability for ultrathin-film electrodes (<400 nm in thickness) with a 91% capacitance retention over 10,000 cycles has been achieved. Our results suggest that this insertion of 0D ionic nanoparticles with complementary interactions in between 2D MXene nanosheets could be extended to other hybrid 0D-2D nanomaterials, providing a promising pathway for the development of hybrid electrode architectures with enhanced ionic transport for long-term energy cycling and storage, capacitive deionization, and ionic filtration.
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Affiliation(s)
- Paraskevi Flouda
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Alex Inman
- A.
J. Drexel Nanomaterials Institute and Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Mariana Gumenna
- Institute
of Macromolecular Chemistry of the National Academy of Sciences of
Ukraine, Kharkivske Shosse
48, Kyiv 02160, Ukraine
| | - Daria Bukharina
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Valery V. Shevchenko
- Institute
of Macromolecular Chemistry of the National Academy of Sciences of
Ukraine, Kharkivske Shosse
48, Kyiv 02160, Ukraine
| | - Yury Gogotsi
- A.
J. Drexel Nanomaterials Institute and Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Vladimir V. Tsukruk
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
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2
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Chiang CH, Mohamed MG, Chen WC, Madhu M, Tseng WL, Kuo SW. Construction of Fluorescent Conjugated Polytriazole Containing Double-Decker Silsesquioxane: Click Polymerization and Thermal Stability. Polymers (Basel) 2023; 15:polym15020331. [PMID: 36679213 PMCID: PMC9863912 DOI: 10.3390/polym15020331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
This study synthesized two azide-functionalized monomers through p-dichloro xylene and double-decker silsesquioxane (DDSQ) units with NaN3 to form DB-N3 and DDSQ-N3 monomers, respectively. In addition, five different propargyl-functionalized monomers were also prepared from hydroquinone, bisphenol A, bis(4-hydroxyphenyl)methanone, 2,4-dihydroxybenzaldehyde (then reacted with hydrazine hydrate solution) and 1,2-bis(4-hydroxyphenyl)-1,2-diphenylethene with propargyl bromide to form P-B, P-BPA, P-CO, P-NP, and P-TPE monomers, respectively. As a result, various DDSQ-based main chain copolymers could be synthesized using Cu(I)-catalyzed click polymerization through DDSQ-N3 with different propargyl-functionalized monomers, of which the chemical structure and molecular weight could be confirmed by using Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and gel permeation chromatography (GPC) analyses. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscope (SEM), transmission electron microscopy (TEM), and photoluminescence (PL) spectroscopy analyses also could characterize the thermal stability, morphology, and optical behaviors of these DDSQ-based copolymers. All results indicate that the incorporation of an inorganic DDSQ cage could improve the thermal stability such as thermal decomposition temperature and char yield, because of the DDSQ dispersion homogeneously in the copolymer matrix, and this would then affect the optical properties of NP and TPE units in this work.
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Affiliation(s)
- Chia-Husan Chiang
- Department of Materials and Optoelectronic Science, College of Semiconductor and Advanced Technology Research, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, College of Semiconductor and Advanced Technology Research, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71515, Egypt
- Correspondence: (M.G.M.); (S.-W.K.)
| | - Wei-Cheng Chen
- Department of Materials and Optoelectronic Science, College of Semiconductor and Advanced Technology Research, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Manivannan Madhu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Wei-Lung Tseng
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, College of Semiconductor and Advanced Technology Research, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (M.G.M.); (S.-W.K.)
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3
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Mohamed MG, Kuo SW. Progress in the self-assembly of organic/inorganic polyhedral oligomeric silsesquioxane (POSS) hybrids. SOFT MATTER 2022; 18:5535-5561. [PMID: 35880446 DOI: 10.1039/d2sm00635a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This Review describes recent progress in the self-assembly of organic/inorganic POSS hybrids derived from mono-, di-, and multi-functionalized POSS cages. We highlight the self-assembled structures and physical properties of giant surfactants and chain-end- and side-chain-type hybrids derived from mono-functionalized POSS cages; main-chain-type hybrids derived from di-functionalized POSS cages; and star-shaped hybrids derived from multi-functionalized POSS cages; with various polymeric attachments, including polystyrene, poly(methyl methacrylate), phenolic, PVPh, and polypeptides.
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Affiliation(s)
- Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
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4
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Nowacka M, Kowalewska A. Self-Healing Silsesquioxane-Based Materials. Polymers (Basel) 2022; 14:polym14091869. [PMID: 35567038 PMCID: PMC9099987 DOI: 10.3390/polym14091869] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
This review is devoted to self-healing materials (SHM) containing polyhedral oligomeric silsesquioxanes (POSS) as building blocks. The synthetic approach can vary depending on the role POSS are expected to play in a given system. POSS (especially double-decker silsesquioxanes) can be grafted in side chains of a polymer backbone or used as segments of the main chain. Appropriate functionalization allows the formation of dynamic bonds with POSS molecules and makes them an active component of SHM, both as crosslinking agents and as factors that enhance the dynamics of macromolecules in the polymer matrix. The latter effect can be achieved by reversible release of bulky POSS cages or by the formation of separated inclusions in the polymer matrix through hydrophobic interactions and POSS aggregation. The unique properties of POSS-based self-healing systems make them interesting and versatile materials for various applications (e.g., repairable coatings, sealants, sensors, soft materials for tissue engineering, drug delivery, and wound healing).
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Ozimek J, Pielichowski K. Recent Advances in Polyurethane/POSS Hybrids for Biomedical Applications. Molecules 2021; 27:molecules27010040. [PMID: 35011280 PMCID: PMC8746980 DOI: 10.3390/molecules27010040] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 11/16/2022] Open
Abstract
Advanced organic-inorganic materials-composites, nanocomposites, and hybrids with various compositions offer unique properties required for biomedical applications. One of the most promising inorganic (nano)additives are polyhedral oligomeric silsesquioxanes (POSS); their biocompatibility, non-toxicity, and phase separation ability that modifies the material porosity are fundamental properties required in modern biomedical applications. When incorporated, chemically or physically, into polyurethane matrices, they substantially change polymer properties, including mechanical properties, surface characteristics, and bioactivity. Hence, this review is dedicated to POSS-PU composites that have recently been developed for applications in the biomedical field. First, different modes of POSS incorporation into PU structure have been presented, then recent developments of PU/POSS hybrids as bio-active composites for scaffolds, cardiovascular stents, valves, and membranes, as well as in bio-imaging and cancer treatment, have been described. Finally, characterization and methods of modification routes of polyurethane-based materials with silsesquioxanes were presented.
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6
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Alassod A, Islam SR, Khalaji MS, Tusiime R, Huang W, Xu G. Polypropylene/Lignin/POSS Nanocomposites: Thermal and Wettability Properties, Application in Water Remediation. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3950. [PMID: 34300869 PMCID: PMC8307505 DOI: 10.3390/ma14143950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/06/2021] [Accepted: 07/01/2021] [Indexed: 12/03/2022]
Abstract
Compositing is an interesting strategy that has always been employed to introduce or enhance desired functionalities in material systems. In this paper, sponges containing polypropylene, lignin, and octavinyl-polyhedral oligomeric silsesquioxane (OV-POSS) were successfully prepared via an easy and elegant strategy called thermally induced phase separation (TIPS). To fully explore the behaviour of different components of prepared sponges, properties were characterized by a thermogravimetric analyser (TGA), differential scanning calorimetry (DSC), Fourier transform infrared measurement (FTIR), and scanning electron microscopy (SEM). Furthermore, wettability properties toward an organic liquid and oil were investigated. The FTIR analysis confirmed the chemical modification of the components. TGA and DSC measurements revealed thermal stability was much better with an increase in OV-POSS content. OV-POSS modified sponges exhibited ultra-hydrophobicity and high oleophilicity with water contact angles of more than 125°. The SEM revealed that POSS molecules acted as a support for reduced surface roughness. Moreover, OV-POSS-based blend sponges showed higher sorption capacities compared with other blend sponges without OV-POSS. The new blend sponges demonstrated a potential for use as sorbent engineering materials in water remediation.
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Affiliation(s)
- Abeer Alassod
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Syed Rashedul Islam
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | | | - Rogers Tusiime
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wanzhen Huang
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Guangbiao Xu
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
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7
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Liu Y, Kigure M, Okawa R, Takeda N, Unno M, Ouali A. Synthesis and characterization of tetrathiol-substituted double-decker or ladder silsesquioxane nano-cores. Dalton Trans 2021; 50:3473-3478. [PMID: 33660737 DOI: 10.1039/d1dt00042j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tetra(3-mercaptopropyl)-silsesquioxanes with double-decker (DDSQ) or ladder nano-cores were easily prepared from the corresponding tetraallyl derivatives through fast and convenient thiol-ene reactions. An additional tetrathiol-DDSQ with more flexible arms was also synthesized in high yield from the corresponding tetrachloro-DDSQ derivative. The three novel tetrathiol silsesquioxanes described represent versatile building blocks for the preparation of hybrid organic-inorganic materials.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France.
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Riho Okawa
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34296, France
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8
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Fan L, Wang X, Wu D. Polyhedral Oligomeric Silsesquioxanes (
POSS
)‐based Hybrid Materials: Molecular Design, Solution
Self‐Assembly
and Biomedical Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000536] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Linfeng Fan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Biomedical Engineering, Southern University of Science and Technology Shenzhen Guangdong 518055 China
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9
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Positive Luminescent Sensor for Aerobic Conditions Based on Polyhedral Oligomeric Silsesquioxane Networks. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-0398-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Chi H, Wang S, Li T, Li Z. Recent progress in using hybrid silicon polymer composites for wastewater treatment. CHEMOSPHERE 2021; 263:128380. [PMID: 33297284 DOI: 10.1016/j.chemosphere.2020.128380] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/09/2020] [Accepted: 09/15/2020] [Indexed: 06/12/2023]
Abstract
Heavy metal ions, oil and organic pollutants in water does not only cause serious water pollution, but also pose serious threats to ecosystems and human health. To this end, water pollution has gradually gained human attention, and various wastewater treatment methods are emerging. Organosilicon polymer composites are a class of materials that contain organic-inorganic hybrid structures with the characteristics of hydrophobicity, thermal stability and easy modification, which provides a brand new solution for wastewater treatment. In this review, various structural features including amorphous, linear, and cage structure of silicon containing polymer composites and the removal mechanism targeting at heavy metal ions, oil and organic pollutants of silicon containing polymer composites are summarized. The viewpoints and challenges in adsorption and engineering application are discussed, and possible solutions are proposed.
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Affiliation(s)
- Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
| | - Shuxian Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Zibiao Li
- Institute of Materials Research and Engineering, A∗STAR (Agency for Science, Technology and Research), Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore.
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11
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Das Karmakar P, Shukla A, Maiti P, Chatterjee S, Pal S. Reversible addition fragmentation chain transfer‐mediated bioconjugated amphiphilic graft‐block copolymer using dextran, poly (
N
‐isopropylacrylamide), and poly (vinyl acetate). J Appl Polym Sci 2020. [DOI: 10.1002/app.50381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Puja Das Karmakar
- Department of Chemistry Indian Institute of Technology (ISM) Dhanbad Dhanbad Jharkhand India
| | - Aparna Shukla
- School of Materials Science and Engineering Indian Institute of Technology (BHU) Varanasi Varanasi Uttar Pradesh India
| | - Pralay Maiti
- School of Materials Science and Engineering Indian Institute of Technology (BHU) Varanasi Varanasi Uttar Pradesh India
| | - Soumit Chatterjee
- Department of Chemistry Indian Institute of Technology (ISM) Dhanbad Dhanbad Jharkhand India
| | - Sagar Pal
- Department of Chemistry Indian Institute of Technology (ISM) Dhanbad Dhanbad Jharkhand India
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12
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Ma X, He L, Huang S, Wu Y, Pan A, Liang J. Effect of different molecular architectured POSS-fluoropolymers on their self-assembled hydrophobic coatings. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04739-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Li D, Wei Q, Wu C, Zhang X, Xue Q, Zheng T, Cao M. Superhydrophilicity and strong salt-affinity: Zwitterionic polymer grafted surfaces with significant potentials particularly in biological systems. Adv Colloid Interface Sci 2020; 278:102141. [PMID: 32213350 DOI: 10.1016/j.cis.2020.102141] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022]
Abstract
In recent years, zwitterionic polymers have been frequently reported to modify various surfaces to enhance hydrophilicity, antifouling and antibacterial properties, which show significant potentials particularly in biological systems. This review focuses on the fabrication, properties and various applications of zwitterionic polymer grafted surfaces. The "graft-from" and "graft-to" strategies, surface grafting copolymerization and post zwitterionization methods were adopted to graft lots type of the zwitterionic polymers on different inorganic/organic surfaces. The inherent hydrophilicity and salt affinity of the zwitterionic polymers endow the modified surfaces with antifouling, antibacterial and lubricating properties, thus the obtained zwitterionic surfaces show potential applications in biosystems. The zwitterionic polymer grafted membranes or stationary phases can effectively separate plasma, water/oil, ions, biomolecules and polar substrates. The nanomedicines with zwitterionic polymer shells have "stealth" effect in the delivery of encapsulated drugs, siRNA or therapeutic proteins. Moreover, the zwitterionic surfaces can be utilized as wound dressing, self-healing or oil extraction materials. The zwitterionic surfaces are expected as excellent support materials for biosensors, they are facing the severe challenges in the surface protection of marine facilities, and the dense ion pair layers may take unexpected role in shielding the grafted surfaces from strong electromagnetic field.
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Progress in the Synthesis of Bifunctionalized Polyhedral Oligomeric Silsesquioxane. Polymers (Basel) 2019; 11:polym11122098. [PMID: 31847358 PMCID: PMC6960853 DOI: 10.3390/polym11122098] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 01/29/2023] Open
Abstract
Polyhedral oligomeric silsesquioxane (POSS) has been considered as one of the most promising nanofillers in academic and industrial research due to its unique multifunctional nanostructure, easy functionalization, hybrid nature, and high processability. The progress of POSS has been extensive, particularly applications based on single- or multiple-armed POSS. In polymer hybrids, in order to enhance the properties, bifunctional POSS has been incorporated into the backbone chain of the polymer. This review summarizes recent developments in the synthesis, modification, and application of bifunctional POSS-containing composite materials. This includes amino-POSS, hydroxyl-POSS, aromatic ring-POSS, ether-POSS, and vinyl groups-POSS and their applications, exemplified by polyurethanes (PUs) and polyimides (PIs). In addition, the review highlights the enhancement of thermal, mechanical, and optical properties of the composites.
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15
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A Selenone-Functionalized Polyhedral Oligomeric Silsesquioxane for Selective Detection and Adsorption of Hg 2+ ions in Aqueous Solutions. Polymers (Basel) 2019; 11:polym11122084. [PMID: 31847067 PMCID: PMC6960921 DOI: 10.3390/polym11122084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/02/2019] [Accepted: 12/11/2019] [Indexed: 12/13/2022] Open
Abstract
Developing novel functional polyhedral oligomeric silsesquioxane (POSS) for various applications is highly desirable. Herein we present the first example of a novel selenone-functionalized POSS (POSS-Se) by treating an imidazolium-containing POSS with selenium powder under mild condition. The structure of POSS-Se was characterized by FT-IR, 1H NMR, 13C NMR, 29Si NMR, and elemental analysis. Acid treatment of POSS-Se results in a hydrophilic red-orange colored solid, which is highly sensitive and selective for the detection of Hg2+ ions in aqueous solutions by visually observing the color change to pale yellow, and to white. Interestingly, POSS-Se has no activity on this detection. This finding is due to the Se-Se formation by acid-treatment and subsequent coordination-induced cleavage upon the addition of Hg2+ ions. The detection behavior can be precisely monitored by a "turn-on" fluorescence phenomenon with the limit of detection (LOD) of 8.48 ppb, comparable to or higher than many reported Hg2+ sensors. Moreover, POSS-Se demonstrates a selective and efficient adsorption of Hg2+ ions with a maximum capacity of 952 mg g-1. The value is higher than most reported adsorbents for Hg2+ ions, typically thiol and/or thioether functional materials, indicating its promise as an efficient adsorbent for the selective removal of Hg2+ ions from industrial wastewater. This work may open up new horizons for the exploration of selenium-containing functional POSS.
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16
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Song X, Zhang X, Li T, Li Z, Chi H. Mechanically Robust Hybrid POSS Thermoplastic Polyurethanes with Enhanced Surface Hydrophobicity. Polymers (Basel) 2019; 11:E373. [PMID: 30960357 PMCID: PMC6419223 DOI: 10.3390/polym11020373] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 01/16/2023] Open
Abstract
A series of hybrid thermoplastic polyurethanes (PUs) were synthesized from bi-functional polyhedral oligomeric silsesquioxane (B-POSS) and polycaprolactone (PCL) using 1,6-hexamethylene diisocyanate (HDI) as a coupling agent for the first time. The newly synthesized hybrid materials were fully characterized in terms of structure, morphology, thermal and mechanical performance, as well as their toughening effect toward polyesters. Thermal gravimeter analysis (TGA) and differential scanning calorimetry (DSC) showed enhanced thermal stability by 76 °C higher in decomposition temperature (Td) of the POSS PUs, and 22 °C higher glass transition temperature (Tg) when compared with control PU without POSS. Static contact angle results showed a significant increment of 49.8° and 53.4° for the respective surface hydrophobicity and lipophilicity measurements. More importantly, both storage modulus (G') and loss modulus (G'') are improved in the hybrid POSS PUs and these parameters can be further adjusted by varying POSS content in the copolymer. As a biodegradable hybrid filler, the as-synthesized POSS PUs also demonstrated a remarkable effect in toughening commercial polyesters, indicating a simple yet useful strategy in developing high-performance polyester for advanced biomedical applications.
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Affiliation(s)
- Xiuhuan Song
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Xiaoxiao Zhang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
| | - Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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