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Gajdošová V, Špírková M, Aguilar Costumbre Y, Krejčíková S, Strachota B, Šlouf M, Strachota A. Morphology, Micromechanical, and Macromechanical Properties of Novel Waterborne Poly(urethane-urea)/Silica Nanocomposites. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1767. [PMID: 36902884 PMCID: PMC10004705 DOI: 10.3390/ma16051767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/09/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Morphology, macro-, and micromechanical properties of novel poly(urethane-urea)/silica nanocomposites were analyzed by electron microscopy, dynamic mechanical thermal analysis, and microindentation. The studied nanocomposites were based on a poly(urethane-urea) (PUU) matrix filled by nanosilica, and were prepared from waterborne dispersions of PUU (latex) and SiO2. The loading of nano-SiO2 was varied between 0 (neat matrix) and 40 wt% in the dry nanocomposite. The prepared materials were all formally in the rubbery state at room temperature, but they displayed complex elastoviscoplastic behavior, spanning from stiffer elastomeric type to semi-glassy. Because of the employed rigid and highly uniform spherical nanofiller, the materials are of great interest for model microindentation studies. Additionally, because of the polycarbonate-type elastic chains of the PUU matrix, hydrogen bonding in the studied nanocomposites was expected to be rich and diverse, ranging from very strong to weak. In micro- and macromechanical tests, all the elasticity-related properties correlated very strongly. The relations among the properties that related to energy dissipation were complex, and were highly affected by the existence of hydrogen bonding of broadly varied strength, by the distribution patterns of the fine nanofiller, as well as by the eventual locally endured larger deformations during the tests, and the tendency of the materials to cold flow.
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Self-Healing and Super-Elastomeric PolyMEA-co-SMA Nanocomposites Crosslinked by Clay Platelets. Gels 2022; 8:gels8100657. [PMID: 36286158 PMCID: PMC9601507 DOI: 10.3390/gels8100657] [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: 09/22/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022] Open
Abstract
Novel solvent-free ultra-extensible, tough, and self-healing nanocomposite elastomers were synthesized. The self-assembled materials were based on the copolymer matrix poly(methoxyethyl acrylate-co-sodium methacrylate) physically crosslinked by clay nano-platelets (‘poly[MEA-co-SMA]/clay’). Depending on the content of SMA, the super-elastomers were predominantly hydrophobic, water-swelling, or fully water-soluble, and hence repeatedly processible. The SMA co-monomer introduces a tremendous increase in tensile strength, an increase in toughness, while ultra-extensibility is preserved. By tuning the contents of nano-clay and SMA co-monomer, a very wide range of product properties was achieved, including extreme ultra-extensibility, or high stiffness combined with more moderate super-extensibility, or very different values of tensile strength. There was very attractive, great improvement in autonomous self-healing ability induced by SMA, combined with tremendously enhanced self-recovery of internal mechanical damage: even complete self-recovery could be achieved. The ionic SMA repeat units were found to assemble to multiplets, which are phase-separated in the hydrophobic polyMEA matrix. The dynamics of SMA-units-hopping between these aggregates was of key importance for the mechanical, visco-elastic, tensile, and self-healing properties. The studied super-elastomers are attractive as advanced self-healing materials in engineering, soft robotics, and in medical or implant applications.
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Byś K, Strachota B, Strachota A, Pavlova E, Steinhart M, Mossety-Leszczak B, Zając W. Novel Tough and Transparent Ultra-Extensible Nanocomposite Elastomers Based on Poly(2-methoxyethylacrylate) and Their Switching between Plasto-Elasticity and Viscoelasticity. Polymers (Basel) 2021; 13:polym13234254. [PMID: 34883757 PMCID: PMC8659642 DOI: 10.3390/polym13234254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/23/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022] Open
Abstract
Novel stiff, tough, highly transparent and ultra-extensible self-assembled nanocomposite elastomers based on poly(2-methoxyethylacrylate) (polyMEA) were synthesized. The materials are physically crosslinked by small in-situ-formed silica nanospheres, sized 3-5 nm, which proved to be a very efficient macro-crosslinker in the self-assembled network architecture. Very high values of yield stress (2.3 MPa), tensile strength (3.0 MPa), and modulus (typically 10 MPa), were achieved in combination with ultra-extensibility: the stiffest sample was breaking at 1610% of elongation. Related nanocomposites doubly filled with nano-silica and clay nano-platelets were also prepared, which displayed interesting synergy effects of the fillers at some compositions. All the nanocomposites exhibit 'plasto-elastic' tensile behaviour in the 'as prepared' state: they display considerable energy absorption (and also 'necking' like plastics), but at the same time a large but not complete (50%) retraction of deformation. However, after the first large tensile deformation, the materials irreversibly switch to 'real elastomeric' tensile behaviour (with some creep). The initial 'plasto-elastic' stretching thus causes an internal rearrangement. The studied materials, which additionally are valuable due to their high transparency, could be of application interest as advanced structural materials in soft robotics, in implant technology, or in regenerative medicine. The presented study focuses on structure-property relationships, and on their effects on physical properties, especially on the complex tensile, elastic and viscoelastic behaviour of the polyMEA nanocomposites.
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Affiliation(s)
- Katarzyna Byś
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Beata Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Adam Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
- Correspondence: ; Tel.: +420-296-809-451
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Miloš Steinhart
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Beata Mossety-Leszczak
- Department of Industrial and Materials Chemistry, Faculty of Chemistry, Rzeszow University of Technology, al. Powstancow Warszawy 6, 35-959 Rzeszow, Poland;
| | - Weronika Zając
- Doctoral School of Engineering and Technical Sciences at the Rzeszow University of Technology, al. Powstancow Warszawy 12, 35-959 Rzeszow, Poland;
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Strachota B, Strachota A, Steinhart M, Šlouf M, Hodan J. Ultra‐extensible solvent‐free elastomers based on nanocomposite poly(2‐methoxyethylacrylate)/clay xerogels. J Appl Polym Sci 2021. [DOI: 10.1002/app.49836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Beata Strachota
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Adam Strachota
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Miloš Steinhart
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Jiří Hodan
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
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Loganathan P, Pillai RS, Jeevananthan V, David E, Palanisami N, Bhuvanesh NSP, Shanmugan S. Assembly of discrete and oligomeric structures of organotin double-decker silsesquioxanes: inherent stability studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj03128g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Discrete and oligomeric organotin DDSQs have been synthesized and characterized, both experimentally and through computational study. The stability of these compounds remains intrigued with the organization of their structure in the crystal lattice.
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Affiliation(s)
- Pushparaj Loganathan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Renjith S. Pillai
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
- Department of Chemistry, Christ University, Bangalore-56029, Karnataka, India
| | - Velusamy Jeevananthan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Ezhumalai David
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nallasamy Palanisami
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nattamai S. P. Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Swaminathan Shanmugan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
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Macro-, Micro- and Nanomechanical Characterization of Crosslinked Polymers with Very Broad Range of Mechanical Properties. Polymers (Basel) 2020; 12:polym12122951. [PMID: 33321924 PMCID: PMC7763541 DOI: 10.3390/polym12122951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 11/17/2022] Open
Abstract
This work is focused on the comparison of macro-, micro- and nanomechanical properties of a series of eleven highly homogeneous and chemically very similar polymer networks, consisting of diglycidyl ether of bisphenol A cured with diamine terminated polypropylene oxide. The main objective was to correlate the mechanical properties at multiple length scales, while using very well-defined polymeric materials. By means of synthesis parameters, the glass transition temperature (Tg) of the polymer networks was deliberately varied in a broad range and, as a result, the samples changed their mechanical behavior from very hard and stiff (elastic moduli 4 GPa), through semi-hard and ductile, to very soft and elastic (elastic moduli 0.006 GPa). The mechanical properties were characterized in macroscale (dynamic mechanical analysis; DMA), microscale (quasi-static microindentation hardness testing; MHI) and nanoscale (quasi-static and dynamic nanoindentation hardness testing; NHI). The stiffness-related properties (i.e., storage moduli, indentation moduli and indentation hardness at all length scales) showed strong and statistically significant mutual correlations (all Pearson′s correlation coefficients r > 0.9 and corresponding p-values < 0.001). Moreover, the relations among the stiffness-related properties were approximately linear, in agreement with the theoretical prediction. The viscosity-related properties (i.e., loss moduli, damping factors, indentation creep and elastic work of indentation at all length scales) reflected the stiff-ductile-elastic transitions. The fact that the macro-, micro- and nanomechanical properties exhibited the same trends and similar values indicated that not only dynamic, but also quasi-static indentation can be employed as an alternative to well-established DMA characterization of polymer networks.
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Low-Temperature-Meltable Elastomers Based on Linear Polydimethylsiloxane Chains Alpha, Omega-Terminated with Mesogenic Groups as Physical Crosslinker: A Passive Smart Material with Potential as Viscoelastic Coupling. Part II-Viscoelastic and Rheological Properties. Polymers (Basel) 2020; 12:polym12122840. [PMID: 33260294 PMCID: PMC7760245 DOI: 10.3390/polym12122840] [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: 11/19/2020] [Accepted: 11/27/2020] [Indexed: 11/16/2022] Open
Abstract
Rheological and viscoelastic properties of physically crosslinked low-temperature elastomers were studied. The supramolecularly assembling copolymers consist of linear polydimethylsiloxane (PDMS) elastic chains terminated on both ends with mesogenic building blocks (LC) of azobenzene type. They are generally and also structurally highly different from the well-studied LC polymer networks or LC elastomers: The LC units make up only a small volume fraction in our materials and act as fairly efficient physical crosslinkers with thermotropic properties. The aggregation (nano-phase separation) of the relatively rare, small and spatially separated terminal LC units generates temperature-switched viscoelasticity in the molten copolymers. Their rheological behavior was found to be controlled by an interplay of nano-phase separation of the LC units (growth and splitting of their aggregates) and of the thermotropic transitions in these aggregates (which change their stiffness). As a consequence, multiple gel points (up to three) are observed in temperature scans of the copolymers. The physical crosslinks also can be reversibly disconnected by large mechanical strain in the 'warm' rubbery state, as well as in melt (thixotropy). The kinetics of crosslink formation was found to be fast if induced by temperature and extremely fast in case of internal self-healing after strain damage. Thixotropic loop tests hence display only very small hysteresis in the LC-melt-state, although the melts show very distinct shear thinning. Our study evaluates structure-property relationships in three homologous systems with elastic PDMS segments of different length (8.6, 16.3 and 64.4 repeat units). The studied copolymers might be of interest as passive smart materials, especially as temperature-controlled elastic/viscoelastic mechanical coupling.
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Horodecka S, Strachota A, Mossety-Leszczak B, Strachota B, Šlouf M, Zhigunov A, Vyroubalová M, Kaňková D, Netopilík M, Walterová Z. Low-Temperature Meltable Elastomers Based on Linear Polydimethylsiloxane Chains Alpha, Omega-Terminated with Mesogenic Groups as Physical Crosslinkers: A Passive Smart Material with Potential as Viscoelastic Coupling. Part I: Synthesis and Phase Behavior. Polymers (Basel) 2020; 12:E2476. [PMID: 33113875 PMCID: PMC7693640 DOI: 10.3390/polym12112476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022] Open
Abstract
Physically crosslinked low-temperature elastomers were prepared based on linear polydimethylsiloxane (PDMS) elastic chains terminated on both ends with mesogenic building blocks (LC) of azobenzene type. They are generally (and also structurally) highly different from the well-studied LC polymer networks (light-sensitive actuators). The LC units also make up only a small volume fraction in our materials and they do not generate elastic energy upon irradiation, but they act as physical crosslinkers with thermotropic properties. Our elastomers lack permanent chemical crosslinks-their structure is fully linear. The aggregation of the relatively rare, small, and spatially separated terminal LC units nevertheless proved to be a considerably strong crosslinking mechanism. The most attractive product displays a rubber plateau extending over 100 °C, melts near 8 °C, and is soluble in organic solvents. The self-assembly (via LC aggregation) of the copolymer molecules leads to a distinctly lamellar structure indicated by X-ray diffraction (XRD). This structure persists also in melt (polarized light microscopy, XRD), where 1-2 thermotropic transitions occur. The interesting effects of the properties of this lamellar structure on viscoelastic and rheological properties in the rubbery and in the melt state are discussed in a follow-up paper ("Part II"). The copolymers might be of interest as passive smart materials, especially as temperature-controlled elastic/viscoelastic mechanical coupling. Our study focuses on the comparison of physical properties and structure-property relationships in three systems with elastic PDMS segments of different length (8.6, 16.3, and 64.4 repeat units).
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Affiliation(s)
- Sabina Horodecka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
- Faculty of Science, Charles University, Albertov 6, CZ-128 00 Praha 2, Czech Republic
| | - Adam Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Beata Mossety-Leszczak
- Faculty of Chemistry, Rzeszow University of Technology, al. Powstancow Warszawy 6, PL-35-959 Rzeszow, Poland;
| | - Beata Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Michaela Vyroubalová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Dana Kaňková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Miloš Netopilík
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
| | - Zuzana Walterová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (S.H.); (B.S.); (M.Š.); (A.Z.); (M.V.); (D.K.); (M.N.); (Z.W.)
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Horodecka S, Strachota A, Mossety-Leszczak B, Šlouf M, Zhigunov A, Vyroubalová M, Kaňková D, Netopilík M. Meltable copolymeric elastomers based on polydimethylsiloxane with multiplets of pendant liquid-crystalline groups as physical crosslinker: A self-healing structural material with a potential for smart applications. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Strachota B, Oleksyuk K, Strachota A, Šlouf M. Porous hybrid poly(N-isopropylacrylamide) hydrogels with very fast volume response to temperature and pH. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109213] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Strachota B, Strachota A, Horodecka S, Steinhart M, Kovářová J, Pavlova E, Ribot F. Polyurethane nanocomposites containing the chemically active inorganic Sn-POSS cages. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.104338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Polyhedral oligomeric butyl stannoxane cages (Sn-POSS) as oxidation-activated linear repairing units or crosslinking nano-building blocks, depending on structure of the polymer matrix. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Laurencin D, Ribot F, Gervais C, Wright AJ, Baker AR, Campayo L, Hanna JV, Iuga D, Smith ME, Nedelec JM, Renaudin G, Bonhomme C. 87Sr,119Sn,127I Single and {1H/19F}-Double Resonance Solid-State NMR Experiments: Application to Inorganic Materials and Nanobuilding Blocks. ChemistrySelect 2016. [DOI: 10.1002/slct.201600805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Danielle Laurencin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM; Université de Montpellier; Montpellier France
| | - François Ribot
- Sorbonne Universités; UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris 75005 Paris France
| | - Christel Gervais
- Sorbonne Universités; UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris 75005 Paris France
| | - Adrian J. Wright
- School of Chemistry; University of Birmingham, Edgbaston; Birmingham B15 2TT UK
| | - Annabelle R. Baker
- Diamond Light Source; Harwell Science and Innovation Campus; Didcot OX11 0DE UK
| | - Lionel Campayo
- CEA, DEN, DTCD, SECM; Laboratoire d'Etude et de Développement de Matrices de Conditionnement, Centre de Marcoule; 30207 Bagnols sur Cèze France
| | - John V. Hanna
- Department of Physics; University of Warwick; Coventry CV4 7AL UK
| | - Dinu Iuga
- Department of Physics; University of Warwick; Coventry CV4 7AL UK
| | - Mark E. Smith
- Department of Physics; University of Warwick; Coventry CV4 7AL UK
- Vice-Chancellor's Office, University House; Lancaster University; Lancaster LA1 4YW UK
| | - Jean-Marie Nedelec
- ICCF, CNRS UMR 6295, SIGMA Clermont; Université Clermont Auvergne, Campus des Céseaux; CS 20265 Aubière France
| | - Guillaume Renaudin
- ICCF, CNRS UMR 6295, SIGMA Clermont; Université Clermont Auvergne, Campus des Céseaux; CS 20265 Aubière France
| | - Christian Bonhomme
- Sorbonne Universités; UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris 75005 Paris France
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Konnertz N, Böhning M, Schönhals A. Dielectric investigations of nanocomposites based on Matrimid and polyhedral oligomeric phenethyl-silsesquioxanes (POSS). POLYMER 2016. [DOI: 10.1016/j.polymer.2016.02.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ahmad H, Alam MM, Rahman MA, Minami H, Gafur MA. Epoxide Functional Temperature-Sensitive Semi-IPN Hydrogel Microspheres for Isolating Inorganic Nanoparticles. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- H. Ahmad
- Department of Chemistry; Rajshahi University; Rajshahi 6205 Bangladesh
| | - M. M. Alam
- Department of Chemistry; Rajshahi University; Rajshahi 6205 Bangladesh
| | - M. A. Rahman
- Department of Chemistry; Rajshahi University; Rajshahi 6205 Bangladesh
| | - H. Minami
- Graduate School of Engineering; Kobe University; Kobe 657-8501 Japan
| | - M. A. Gafur
- Pilot Plant and Process Development Centre; BCSIR; Dhaka 1205 Bangladesh
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Rodzeń K, Strachota A, Ribot F, Matějka L, Kovářová J, Trchová M, Šlouf M. Reactivity of the tin homolog of POSS, butylstannoxane dodecamer, in oxygen-induced crosslinking reactions with an organic polymer matrix: Study of long-time behavior. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Strachota A, Rodzeń K, Raus V, Ribot F, Janata M, Pavlova E. Incorporation and chemical effect of Sn-POSS cages in poly(ethyl methacrylate). Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.04.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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