1
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Preparation of a Magnetocaloric Dual-Response SiO2-Based Green Nano-Emulsifier by an SET-LRP Method and Evaluation of its Properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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2
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Tawade BV, Apata IE, Pradhan N, Karim A, Raghavan D. Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications. Molecules 2021; 26:2942. [PMID: 34063362 PMCID: PMC8157189 DOI: 10.3390/molecules26102942] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 11/29/2022] Open
Abstract
The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the "grafting from" and "grafting to" approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.
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Affiliation(s)
- Bhausaheb V. Tawade
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
| | - Ikeoluwa E. Apata
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
| | - Nihar Pradhan
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA;
| | - Alamgir Karim
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA;
| | - Dharmaraj Raghavan
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
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3
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Stroea L, Chibac-Scutaru AL, Melinte V. Aliphatic Polyurethane Elastomers Quaternized with Silane-Functionalized TiO 2 Nanoparticles with UV-Shielding Features. Polymers (Basel) 2021; 13:1318. [PMID: 33923812 PMCID: PMC8074198 DOI: 10.3390/polym13081318] [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: 03/24/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 11/17/2022] Open
Abstract
The design of high-performance nanocomposites with improved mechanical, thermal or optical properties compared to starting polymers has generated special interest due to their use in a wide range of targeted applications. In the present work, polymer nanocomposites composed of polyurethane elastomers based on polycaprolactone or polycaprolactone/poly(ethylene glycol) soft segments and titanium dioxide (TiO2) nanoparticles as an inorganic filler were prepared and characterized. Initially, the surface of TiO2 nanoparticles was modified with (3-iodopropyl) trimethoxysilane as a coupling agent, and thereafter, the tertiary amine groups from polyurethane hard segments were quaternized with the silane-modified TiO2 nanoparticles in order to ensure covalent binding of the nanoparticles on the polymeric chains. In the preparation of polymer nanocomposites, two quaternization degrees were taken into account (1/1 and 1/0.5 molar ratios), and the resulting nanocomposite coatings were characterized by various methods (Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, contact angle, thermogravimetric analysis, dynamic mechanical thermal analysis). The mechanical parameters of the samples evaluated by tensile testing confirm the elastomeric character of the polyurethanes and of the corresponding composites, indicating the obtaining of highly flexible materials. The absorbance/transmittance measurements of PU/TiO2 thin films in the wavelength range of 200-700 nm show that these partially block UV-A radiation and all UV-B radiation from sunlight and could possibly be used as UV-protective elastomeric coatings.
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Affiliation(s)
| | | | - Violeta Melinte
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.S.); (A.-L.C.-S.)
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4
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Xiong Y, Chen Q, Cao T, Chang J, Xu S, Xu Z. Effect of electrolytes on interactions between a novel organic-inorganic hybrid polymer flocculant and kaolinite particles. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124391] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Colloidal Probes of PNIPAM-Grafted SiO 2 in Studying the Microrheology of Thermally Sensitive Microgel Suspensions. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/3971953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The complex rheology and the phase behavior of thermally sensitive poly(N-isopropylacrylamide) (PNIPAM) microgels have been investigated in both the swollen and collapsed states by using microrheology. To avoid the interactions between the tracer probes and the PNIPAM microgels, such as the adsorption or the depletion effect, the probes of silica (SiO2) particles have been grafted with PNIPAM chains (SiO2-PNIPAM) and characterized with Fourier transform infrared spectroscopy (FTIR). The successful preparation of SiO2-PNIPAM has also been proved by the investigation of the particle size and morphology with dynamic light scattering (DLS) and transmission electron microscope (TEM) below and beyond the phase transition temperature of PNIPAM. The microrheology of the PNIPAM microgel suspension has been investigated by using the prepared SiO2-PNIPAM particles as microrheological probes, and the results show that the diffusive coefficient of the probes in the swollen state is one-fifth of that in the collapsed state, and the viscosity of the PNIPAM microgel suspension in the swollen state is four times higher than that in the collapsed state, indicating SiO2-PNIPAM is a good probe in the microrheological study of PNIPAM microgel suspensions.
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6
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Petre DG, Nadar R, Tu Y, Paknahad A, Wilson DA, Leeuwenburgh SCG. Thermoresponsive Brushes Facilitate Effective Reinforcement of Calcium Phosphate Cements. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26690-26703. [PMID: 31246399 PMCID: PMC6676411 DOI: 10.1021/acsami.9b08311] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 06/27/2019] [Indexed: 05/04/2023]
Abstract
Calcium phosphate ceramics are frequently applied to stimulate regeneration of bone in view of their excellent biological compatibility with bone tissue. Unfortunately, these bioceramics are also highly brittle. To improve their toughness, fibers can be incorporated as the reinforcing component for the calcium phosphate cements. Herein, we functionalize the surface of poly(vinyl alcohol) fibers with thermoresponsive poly(N-isopropylacrylamide) brushes of tunable thickness to improve simultaneously fiber dispersion and fiber-matrix affinity. These brushes shift from hydrophilic to hydrophobic behavior at temperatures above their lower critical solution temperature of 32 °C. This dual thermoresponsive shift favors fiber dispersion throughout the hydrophilic calcium phosphate cements (at 21 °C) and toughens these cements when reaching their hydrophobic state (at 37 °C). The reinforcement efficacy of these surface-modified fibers was almost double at 37 versus 21 °C, which confirms the strong potential of thermoresponsive fibers for reinforcement of calcium phosphate cements.
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Affiliation(s)
- Daniela-Geta Petre
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Robin Nadar
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Yingfeng Tu
- Department
of Systems Chemistry, Radboud University, 6525 AJ Nijmegen, The Netherlands
- School
of Pharmaceutical Science, Guangdong Provincial Key Laboratory of
New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Ali Paknahad
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
- Department
of Computational Mechanics, Faculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN Delft, The Netherlands
| | - Daniela A. Wilson
- Department
of Systems Chemistry, Radboud University, 6525 AJ Nijmegen, The Netherlands
- School
of Pharmaceutical Science, Guangdong Provincial Key Laboratory of
New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Sander C. G. Leeuwenburgh
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
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7
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Wang H, Lu X, Lu D, Wang P, Ma J. Development of a high-performance polysulfone hybrid ultrafiltration membrane using hydrophilic polymer-functionalized mesoporous SBA − 15 as filler. J Appl Polym Sci 2019. [DOI: 10.1002/app.47353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haidong Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090 China
| | - Xiaofei Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090 China
| | - Dongwei Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090 China
| | - Panpan Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090 China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090 China
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8
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Kopeć M, Spanjers J, Scavo E, Ernens D, Duvigneau J, Julius Vancso G. Surface-initiated ATRP from polydopamine-modified TiO2 nanoparticles. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Photoelectrocatalytic Reduction of CO2 to Chemicals via ZnO@Nickel Foam: Controlling C–C Coupling by Ligand or Morphology. Top Catal 2018. [DOI: 10.1007/s11244-018-1018-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Boron Nitride Nanosheets/PNIPAM Hydrogels with Improved Thermo-Responsive Performance. MATERIALS 2018; 11:ma11071069. [PMID: 29937530 PMCID: PMC6073573 DOI: 10.3390/ma11071069] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 11/17/2022]
Abstract
Thermo-responsive hydrogel is an important smart material. However, its slow thermal response rate limits the scope of its applications. Boron nitride nanosheet-reinforced thermos-responsive hydrogels, which can be controlled by heating, were fabricated by in situ polymerization of N-isopropylacrylamide in the presence of boron nitride nanosheets. The hydrogels exhibit excellent thermo-responsiveness and much enhanced thermal response rate than that of pure poly(N-isopropylacrylamide) hydrogels. Interestingly, the hydrogels can be driven to move in aqueous solution by heating. Importantly, the composite hydrogel is hydrophilic at a temperature below lower critical solution temperature (LCST), while it is hydrophobic at a temperature above LCST. Therefore, it can be used for quick absorption and release of dyes and oils from water. All these properties demonstrate the potential of hydrogel composites for water purification and treatment.
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11
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Shakeri A, Yip D, Badv M, Imani SM, Sanjari M, Didar TF. Self-Cleaning Ceramic Tiles Produced via Stable Coating of TiO₂ Nanoparticles. MATERIALS 2018; 11:ma11061003. [PMID: 29899252 PMCID: PMC6025286 DOI: 10.3390/ma11061003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/03/2018] [Accepted: 06/08/2018] [Indexed: 11/21/2022]
Abstract
The high photocatalytic power of TiO2 nanoparticles has drawn great attention in environmental and medical applications. Coating surfaces with these particles enables us to benefit from self-cleaning properties and decomposition of pollutants. In this paper, two strategies have been introduced to coat ceramic tiles with TiO2 nanoparticles, and the self-cleaning effect of the surfaces on degradation of an organic dye under ultraviolent (UV) exposure is investigated. In the first approach, a simple one-step heat treatment method is introduced for coating, and different parameters of the heat treatment process are examined. In the second method, TiO2 nanoparticles are first aminosilanized using (3-Aminopropyl)triethoxysilane (APTES) treatment followed by their covalently attachment onto CO2 plasma treated ceramic tiles via N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC) and N-Hydroxysuccinimide (NHS) chemistry. We monitor TiO2 nanoparticle sizes throughout the coating process using dynamic light scattering (DLS) and characterize developed surfaces using X-ray photoelectron spectroscopy (XPS). Moreover, hydrophilicity of the coated surfaces is quantified using a contact angle measurement. It is shown that applying a one-step heat treatment process with the optimum temperature of 200 °C for 5 h results in successful coating of nanoparticles and rapid degradation of dye in a short time. In the second strategy, the APTES treatment creates a stable covalent coating, while the photocatalytic capability of the particles is preserved. The results show that coated ceramic tiles are capable of fully degrading the added dyes under UV exposure in less than 24 h.
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Affiliation(s)
- Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
| | - Darren Yip
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
| | - Maryam Badv
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
| | - Sara M Imani
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
| | - Mehdi Sanjari
- Nanophyll Inc., 175 Longwood Rd South, Hamilton, ON L8P 0A1, Canada.
| | - Tohid F Didar
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
- Institute for Infectious Disease Research (IIDR), McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
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12
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Xu W, Qin Z, Chen CT, Kwag HR, Ma Q, Sarkar A, Buehler MJ, Gracias DH. Ultrathin thermoresponsive self-folding 3D graphene. SCIENCE ADVANCES 2017; 3:e1701084. [PMID: 28989963 PMCID: PMC5630237 DOI: 10.1126/sciadv.1701084] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 09/12/2017] [Indexed: 05/21/2023]
Abstract
Graphene and other two-dimensional materials have unique physical and chemical properties of broad relevance. It has been suggested that the transformation of these atomically planar materials to three-dimensional (3D) geometries by bending, wrinkling, or folding could significantly alter their properties and lead to novel structures and devices with compact form factors, but strategies to enable this shape change remain limited. We report a benign thermally responsive method to fold and unfold monolayer graphene into predesigned, ordered 3D structures. The methodology involves the surface functionalization of monolayer graphene using ultrathin noncovalently bonded mussel-inspired polydopamine and thermoresponsive poly(N-isopropylacrylamide) brushes. The functionalized graphene is micropatterned and self-folds into ordered 3D structures with reversible deformation under a full control by temperature. The structures are characterized using spectroscopy and microscopy, and self-folding is rationalized using a multiscale molecular dynamics model. Our work demonstrates the potential to design and fabricate ordered 3D graphene structures with predictable shape and dynamics. We highlight applicability by encapsulating live cells and creating nonlinear resistor and creased transistor devices.
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Affiliation(s)
- Weinan Xu
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zhao Qin
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chun-Teh Chen
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Hye Rin Kwag
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Qinli Ma
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Anjishnu Sarkar
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Markus J. Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - David H. Gracias
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Corresponding author.
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13
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Zoppe JO, Ataman NC, Mocny P, Wang J, Moraes J, Klok HA. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem Rev 2017; 117:1105-1318. [PMID: 28135076 DOI: 10.1021/acs.chemrev.6b00314] [Citation(s) in RCA: 600] [Impact Index Per Article: 85.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-CRP) techniques has become a powerful approach to tailor the chemical and physical properties of interfaces and has given rise to great advances in surface and interface engineering. Polymer brushes are defined as thin polymer films in which the individual polymer chains are tethered by one chain end to a solid interface. Significant advances have been made over the past years in the field of polymer brushes. This includes novel developments in SI-CRP, as well as the emergence of novel applications such as catalysis, electronics, nanomaterial synthesis and biosensing. Additionally, polymer brushes prepared via SI-CRP have been utilized to modify the surface of novel substrates such as natural fibers, polymer nanofibers, mesoporous materials, graphene, viruses and protein nanoparticles. The last years have also seen exciting advances in the chemical and physical characterization of polymer brushes, as well as an ever increasing set of computational and simulation tools that allow understanding and predictions of these surface-grafted polymer architectures. The aim of this contribution is to provide a comprehensive review that critically assesses recent advances in the field and highlights the opportunities and challenges for future work.
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Affiliation(s)
- Justin O Zoppe
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Nariye Cavusoglu Ataman
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Jian Wang
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - John Moraes
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
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14
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Guo S, Zhang Q, Wang D, Wang L, Lin F, Wilson P, Haddleton DM. Bioinspired coating of TiO2nanoparticles with antimicrobial polymers by Cu(0)-LRP: grafting to vs. grafting from. Polym Chem 2017. [DOI: 10.1039/c7py01471f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Titanium dioxide nanoparticles coated with non-leachable biocides were prepared by Cu(0)-LRP of tertiary-amine-containing monomersvia“grafting to” and “grafting from” strategies.
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Affiliation(s)
- Shutong Guo
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Qiang Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Donghao Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Lu Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Fang Lin
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Paul Wilson
- Department of Chemistry
- University of Warwick
- Coventry
- UK
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15
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Wang D, Guo S, Zhang Q, Wilson P, Haddleton DM. Mussel-inspired thermoresponsive polymers with a tunable LCST by Cu(0)-LRP for the construction of smart TiO2 nanocomposites. Polym Chem 2017. [DOI: 10.1039/c7py00736a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Thermoresponsive polymers with different microstructures, a tunable LCST and terminal catechol anchors were synthesized by Cu(0)-LRP for the surface functionalization of TiO2 nanoparticles.
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Affiliation(s)
- Donghao Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Shutong Guo
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Qiang Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Paul Wilson
- Department of Chemistry
- University of Warwick
- Coventry
- UK
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16
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Lemanowicz M, Gierczycki A, Kuźnik W, Milczyńska J, Bulanda P. Application of thermosensitive polymers in stabilization of colloids. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.01.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Hathaway H, Alves DR, Bean J, Esteban PP, Ouadi K, Mark Sutton J, Jenkins ATA. Poly(N-isopropylacrylamide-co-allylamine) (PNIPAM-co-ALA) nanospheres for the thermally triggered release of Bacteriophage K. Eur J Pharm Biopharm 2015; 96:437-41. [DOI: 10.1016/j.ejpb.2015.09.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/21/2015] [Accepted: 09/23/2015] [Indexed: 12/19/2022]
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18
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Kurzhals S, Zirbs R, Reimhult E. Synthesis and Magneto-Thermal Actuation of Iron Oxide Core-PNIPAM Shell Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19342-52. [PMID: 26270412 PMCID: PMC4559841 DOI: 10.1021/acsami.5b05459] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/13/2015] [Indexed: 05/03/2023]
Abstract
Superparamagnetic nanoparticles have been proposed for many applications in biotechnology and medicine. In this paper, it is demonstrated how the excellent colloidal stability and magnetic properties of monodisperse and individually densely grafted iron oxide nanoparticles can be used to manipulate reversibly the solubility of nanoparticles with a poly(N-isopropylacrylamide)nitrodopamine shell. "Grafting-to" and "grafting-from" methods for synthesis of an irreversibly anchored brush shell to monodisperse, oleic acid coated iron oxide cores are compared. Thereafter, it is shown that local heating by magnetic fields as well as global thermal heating can be used to efficiently and reversibly aggregate, magnetically extract nanoparticles from solution and spontaneously redisperse them. The coupling of magnetic and thermally responsive properties points to novel uses as smart materials, for example, in integrated devices for molecular separation and extraction.
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Affiliation(s)
- Steffen Kurzhals
- Institute for Biologically Inspired Materials, Department of Nanobiotechnology, University
of Natural Resources and Life Sciences, Vienna, Muthgasse 11, A-1190 Vienna, Austria
| | - Ronald Zirbs
- Institute for Biologically Inspired Materials, Department of Nanobiotechnology, University
of Natural Resources and Life Sciences, Vienna, Muthgasse 11, A-1190 Vienna, Austria
| | - Erik Reimhult
- Institute for Biologically Inspired Materials, Department of Nanobiotechnology, University
of Natural Resources and Life Sciences, Vienna, Muthgasse 11, A-1190 Vienna, Austria
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19
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Feng Q, Tang D, Lv H, Zhang W, Li W. Temperature-responsive zinc oxide nanorods arrays grafted with poly(N-isopropylacrylamide) via SI-ATRP. RSC Adv 2015. [DOI: 10.1039/c5ra07301d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanocomposites based on ZnO nanorods, with photocatalysis and temperature responsibility, could be fabricated by grafting poly(N-isopropylacrylamide) PNIPAM via surface-initiated atom transfer radical polymerization (SI-ATRP).
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Affiliation(s)
- Qian Feng
- Department of Chemistry
- School of Science
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Dongyan Tang
- Department of Chemistry
- School of Science
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Haitao Lv
- Department of Chemistry
- School of Science
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Weile Zhang
- Department of Chemistry
- School of Science
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Wenbo Li
- Department of Chemistry
- School of Science
- Harbin Institute of Technology
- Harbin 150001
- China
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20
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Krishnamoorthy M, Hakobyan S, Ramstedt M, Gautrot JE. Surface-initiated polymer brushes in the biomedical field: applications in membrane science, biosensing, cell culture, regenerative medicine and antibacterial coatings. Chem Rev 2014; 114:10976-1026. [PMID: 25353708 DOI: 10.1021/cr500252u] [Citation(s) in RCA: 393] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mahentha Krishnamoorthy
- Institute of Bioengineering and ‡School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
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21
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Chiou K, Froimowicz P, Landfester K, Taden A, Ishida H. Triggered Precision Benzoxazine Film Formation by Thermally Induced Destabilization of Benzoxazine Nanodroplets Using a LCST-Bearing Surfactant. Macromolecules 2014. [DOI: 10.1021/ma500386z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Kevin Chiou
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Pablo Froimowicz
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Katharina Landfester
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Andreas Taden
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
- Adhesive Technologies R & D Henkel AG & Co. KGaA, 40191 Duesseldorf, Germany
| | - Hatsuo Ishida
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
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22
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Wang Y, Kotsuchibashi Y, Liu Y, Narain R. Temperature-responsive hyperbranched amine-based polymers for solid-liquid separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2360-2368. [PMID: 24533692 DOI: 10.1021/la5003012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Temperature-responsive hyperbranched polymers containing primary amines as pendent groups have been synthesized for solid-liquid separation of kaolinite clay suspension. The effects of temperature, polymer charge density, and polymer architecture on particle flocculation have been investigated. Suspensions treated with the temperature-responsive amine-based hyperbranched polymers showed remarkable separation of the fine particles at a low polymer dosage of 10 ppm and at testing temperatures of 40 °C. In comparison to other polymers studied (linear and hyperbranched homopolymers and copolymers), the temperature-responsive amine-based hyperbranched copolymers showed better particle flocculation at 40 °C, as evidenced by the formation of a thinner sediment bed without compromising the amount of clay particles being flocculated. This superior solid-liquid separation performance can be explained by the hydrophobic interaction of PNIPAM segments on particle surfaces or the capture of additional free particles or small floc due to the exposure of buried positive charges (because of the phase separation of the hydrophilic amines and hydrophobic PNIPAM part) at temperatures above the lower critical solution temperature (LCST).
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Affiliation(s)
- Yinan Wang
- Department of Chemical and Materials Engineering, University of Alberta , 116 Street and 85 Avenue, Edmonton, AB T6G 2G6, Canada
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23
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He W, Jiang H, Zhang L, Cheng Z, Zhu X. Atom transfer radical polymerization of hydrophilic monomers and its applications. Polym Chem 2013. [DOI: 10.1039/c3py00122a] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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