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Martins TD, Ribeiro T, Farinha JPS. Overview of Silica-Polymer Nanostructures for Waterborne High-Performance Coatings. Polymers (Basel) 2021; 13:1003. [PMID: 33805231 PMCID: PMC8037112 DOI: 10.3390/polym13071003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/26/2022] Open
Abstract
Combining organic and inorganic components at a nanoscale is an effective way to obtain high performance coating materials with excellent chemical and physical properties. This review focuses on recent approaches to prepare hybrid nanostructured waterborne coating materials combining the mechanical properties and versatility of silica as the inorganic filler, with the flexural properties and ease of processing of the polymer matrix. We cover silica-polymer coupling agents used to link the organic and inorganic components, the formation of hybrid films from these silica-polymer nanostructures, and their different applications. These hybrid nanostructures can be used to prepare high performance functional coatings with different properties from optical transparency, to resistance to temperature, hydrophobicity, anti-corrosion, resistance to scratch, and antimicrobial activity.
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Affiliation(s)
| | | | - José Paulo S. Farinha
- Centro de Química Estrutural, Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (T.D.M.); (T.R.)
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2
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Qiang Z, Wang M. 100th Anniversary of Macromolecular Science Viewpoint: Enabling Advances in Fluorescence Microscopy Techniques. ACS Macro Lett 2020; 9:1342-1356. [PMID: 35638626 DOI: 10.1021/acsmacrolett.0c00506] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the past few decades there has been a revolution in the field of optical microscopy with emerging capabilities such as super-resolution and single-molecule fluorescence techniques. Combined with the classical advantages of fluorescence imaging, such as chemical labeling specificity, and noninvasive sample preparation and imaging, these methods have enabled significant advances in our polymer community. This Viewpoint discusses several of these capabilities and how they can uniquely offer information where other characterization techniques are limited. Several examples are highlighted that demonstrate the ability of fluorescence microscopy to understand key questions in polymer science such as single-molecule diffusion and orientation, 3D nanostructural morphology, and interfacial and multicomponent dynamics. Finally, we briefly discuss opportunities for further advances in techniques that may allow them to make an even greater contribution in polymer science.
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Affiliation(s)
- Zhe Qiang
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Muzhou Wang
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
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3
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Cui S, Yu L, Ding J. Thermogelling of Amphiphilic Block Copolymers in Water: ABA Type versus AB or BAB Type. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00534] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Shuquan Cui
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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4
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Casier R, Gauthier M, Duhamel J. Using Pyrene Excimer Fluorescence To Probe Polymer Diffusion in Latex Films. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02726] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Remi Casier
- Institute for Polymer Research, Waterloo
Institute for Nanotechnology, Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Mario Gauthier
- Institute for Polymer Research, Waterloo
Institute for Nanotechnology, Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Jean Duhamel
- Institute for Polymer Research, Waterloo
Institute for Nanotechnology, Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
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5
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Gonzalez-Alvarez MJ, Paternoga J, Breul K, Cho H, Roshandel MZ, Soleimani M, Winnik MA. Understanding particle formation in surfactant-free waterborne coatings prepared by emulsification of pre-formed polymers. Polym Chem 2017. [DOI: 10.1039/c7py00387k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Concern for the environment has been driving major changes in the coatings industry.
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Affiliation(s)
| | - Jan Paternoga
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | | | - Hyungjun Cho
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | | | - Mohsen Soleimani
- BASF Corporation
- Advanced Materials and Systems Research
- Wyandotte
- USA
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Piçarra S, Fidalgo A, Fedorov A, Martinho JMG, Farinha JPS. Smart polymer nanoparticles for high-performance water-borne coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:12345-12353. [PMID: 25247636 DOI: 10.1021/la502826r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poly(butyl methacrylate) nanoparticles encapsulating a silica precursor, tetraethoxysilane (TEOS), were synthesized by a two-step emulsion polymerization process. We show that TEOS remains mostly unreacted inside the nanoparticles in water but acts both as a plasticizer and cross-linker in films cast from the dispersions. The diffusion-enhancing plasticizing effect is dominant at annealing temperatures closer to the glass-transition temperature of the polymer, and sol-gel cross-linking reactions predominate at higher temperatures. By choosing an appropriate annealing temperature, we were able to balance polymer interdiffusion and silica cross-linking to obtain films with good mechanical properties and excellent chemical resistance. The hybrid cross-linked films produced from these novel "smart" nanoparticles can be used in water-borne environmentally friendly coatings for high-performance applications.
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Affiliation(s)
- Susana Piçarra
- IN-Institute of Nanoscience and Nanotechnology and Centro de Química-Física Molecular , Instituto Superior Técnico (Universidade de Lisboa) , 1049-001 Lisboa, Portugal
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8
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Ribeiro T, Baleizão C, Farinha JPS. Functional Films from Silica/Polymer Nanoparticles. MATERIALS 2014; 7:3881-3900. [PMID: 28788655 PMCID: PMC5453198 DOI: 10.3390/ma7053881] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/07/2014] [Accepted: 05/07/2014] [Indexed: 02/03/2023]
Abstract
High performance functional coatings, based on hybrid organic/inorganic materials, are being developed to combine the polymer flexibility and ease of processing with the mechanical properties and versatility of inorganic materials. By incorporating silica nanoparticles (SiNPs) in the polymeric matrices, it is possible to obtain hybrid polymer films with increased tensile strength and impact resistance, without decreasing the flexural properties of the polymer matrix. The SiNPs can further be used as carriers to impart other functionalities (optical, etc.) to the hybrid films. By using polymer-coated SiNPs, it is possible to reduce particle aggregation in the films and, thus, achieve more homogeneous distributions of the inorganic components and, therefore, better properties. On the other hand, by coating polymer particles with silica, one can create hierarchically structured materials, for example to obtain superhydrophobic coatings. In this review, we will cover the latest developments in films prepared from hybrid polymer/silica functional systems.
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Affiliation(s)
- Tânia Ribeiro
- CQFM-Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
| | - Carlos Baleizão
- CQFM-Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
| | - José Paulo S Farinha
- CQFM-Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
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9
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Martins S, Farinha JPS, Baleizão C, Berberan-Santos MN. Controlled release of singlet oxygen using diphenylanthracene functionalized polymer nanoparticles. Chem Commun (Camb) 2014; 50:3317-20. [DOI: 10.1039/c3cc48293f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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10
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Ribeiro T, Fedorov A, Baleizão C, Farinha JPS. Formation of hybrid films from perylenediimide-labeled core-shell silica-polymer nanoparticles. J Colloid Interface Sci 2013; 401:14-22. [PMID: 23622686 DOI: 10.1016/j.jcis.2013.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 03/01/2013] [Accepted: 03/04/2013] [Indexed: 10/27/2022]
Abstract
We prepared water-dispersible core-shell nanoparticles with a perylenediimide-labeled silica core and a poly(butyl methacrylate) shell, for application in photoactive high performance coatings. Films cast from water dispersions of the core-shell nanoparticles are flexible and transparent, featuring homogeneously dispersed silica nanoparticles, and exhibiting fluorescence under appropriate excitation. We characterized the film formation process using nanoparticles where the polymer shell has been labeled with either a non-fluorescent N-benzophenone derivative (NBen) or a fluorescent phenanthrene derivative (PheBMA). We used Förster resonance energy transfer (FRET) from PheBMA to NBen to follow the interparticle interdiffusion of the polymer anchored to the silica surface that occurs after the dried dispersions are annealing above the glass transition temperature of the polymer. By calculating the evolution of the FRET quantum efficiency with annealing time, we could estimate the approximate fraction of mixing (fm) between polymer from neighbor particles, and from this, the apparent diffusion coefficients (Dapp) for this process. For long annealing times, the limiting values of fm are slightly lower than for films of pure PBMA particles at similar temperatures (go up to 80% of total possible mixing). The corresponding diffusion coefficients are also very similar to those reported for films of pure PBMA, indicating that the fact that the polymer chains are anchored to the silica particles does not significantly hinder the diffusion process during the initial part of the mixing process. From the temperature dependence of the diffusion coefficients, we found an effective activation energy for diffusion of Ea=38 kcal/mol, very similar to the value obtained for particles of the same polymer without the silica core. With these results, we show that, although the polymer is grafted to the silica surface, polymer interdiffusion during film formation is not significantly decreased by the silica core. This explains the excellent properties of the photoactive high performance coatings formed from the core-shell nanoparticles.
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Affiliation(s)
- Tânia Ribeiro
- CQFM-Centro de Química-Física Molecular, IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Lisboa, Portugal
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11
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Marcelo G, Martinho JMG, Farinha JPS. Polymer-Coated Nanoparticles by Adsorption of Hydrophobically Modified Poly(N,N-dimethylacrylamide). J Phys Chem B 2013; 117:3416-27. [DOI: 10.1021/jp312198k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gema Marcelo
- Centro de Química-Física Molecular and
IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001
Lisboa, Portugal
| | - J. M. G. Martinho
- Centro de Química-Física Molecular and
IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001
Lisboa, Portugal
| | - José Paulo S. Farinha
- Centro de Química-Física Molecular and
IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001
Lisboa, Portugal
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12
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Piçarra S, Afonso CAM, Kurteva VB, Fedorov A, Martinho JMG, Farinha JPS. The influence of nanoparticle architecture on latex film formation and healing properties. J Colloid Interface Sci 2011; 368:21-33. [PMID: 22153277 DOI: 10.1016/j.jcis.2011.10.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 10/27/2011] [Accepted: 10/30/2011] [Indexed: 10/15/2022]
Abstract
We present a study of chain interdiffusion in films formed by specially architectured PBMA nanoparticles by Förster Resonance Energy Transfer -FRET. Polymer nanoparticles contained linear chains with narrower molecular weight distributions than other previous reports, allowing a more detailed study. Apparent fractions of mixing and diffusion coefficients, determined from the quantum efficiency of energy transfer, were used to characterize the interdiffusion mechanism in the different films. The resistance of the films to dissolution by a good solvent was finally correlated with the interdiffusion results, in order to get information about film healing. We concluded that whenever interdiffusion occurs between nanoparticles containing linear chains and fully cross-linked nanoparticles, healing becomes more effective in spite of showing slower interdiffusion. We also observed that particles with longer chains are more effective for film healing. Finally, we concluded that interdiffusion occurs both ways across interfaces in blends formed by particles swollen with linear chains of different molecular weights.
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Affiliation(s)
- S Piçarra
- Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, 1049-001 Lisboa, Portugal.
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13
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Schroeder WF, Liu Y, Tomba JP, Soleimani M, Lau W, Winnik MA. Effect of a coalescing aid on the earliest stages of polymer diffusion in poly(butyl acrylate-co-methyl methacrylate) latex films. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.06.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Moura LM, Martinho JMG, Farinha JPS. DNA Hybridization in Thermoresponsive Polymer Nanoparticles. Chemphyschem 2010; 11:1749-56. [DOI: 10.1002/cphc.201000015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Schroeder WF, Liu Y, Tomba JP, Soleimani M, Lau W, Winnik MA. Influence of Ethylene Glycol and Propylene Glycol on Polymer Diffusion in Poly(butyl acrylate-co-methyl methacrylate) Latex Films. J Phys Chem B 2010; 114:3085-94. [DOI: 10.1021/jp9118875] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Walter F. Schroeder
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
| | - Yuanqin Liu
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
| | - J. Pablo Tomba
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
| | - Mohsen Soleimani
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
| | - Willie Lau
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto Ontario, M5S 3E5 Canada, and Rohm and Haas Company, 727 Norristown Road, Spring House, Pennsylvania 19477
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16
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Romão RIS, Beija M, Charreyre MT, Farinha JPS, Gonçalves da Silva AMPS, Martinho JMG. Schizophrenic behavior of a thermoresponsive double hydrophilic diblock copolymer at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:1807-1815. [PMID: 19928784 DOI: 10.1021/la902510q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The thermoresponsive behavior of the rhodamine B end-labeled double hydrophilic block copolymer (DHBC) poly(N,N-dimethylacrylamide)-b-poly(N,N-diethylacrylamide) (RhB-PDMA(207)-b-PDEA(177)) and the 1:1 segmental mixture of PDEA and rhodamine B end-labeled PDMA homopolymers was studied over the range of 10-40 degrees C at the air-water interface. The increase in collapse surface pressure (second plateau regime) of the DHBC with temperature confirms the thermoresponsiveness of PDEA at the interface. The sum of the pi-A isotherms of the two single homopolymers weighted by composition closely follows the pi-A isotherm of the DHBC, suggesting that the behavior of each block of the DHBC is not influenced by the presence of the other block. Langmuir-Blodgett monolayers of DHBC deposited on glass substrates were analyzed by laser scanning confocal fluorescence microscopy (LSCFM), showing schizophrenic behavior: at low temperature, the RhB-PDMA block dominates the inside of bright (core) microdomains, switching to the outside (shell) at temperatures above the lower critical solution temperature (LCST) of PDEA. This core-shell inversion triggered by the temperature increase was not detected in the homopolymer mixture. The present results suggest that both the covalent bond between the two blocks of the DHBC and the tendency of rhodamine B to aggregate play a role in the formation of the bright cores at low temperature whereas PDEA thermoaggregation is responsible for the formation of the dark cores above the LCST of PDEA.
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Affiliation(s)
- Rute I S Romão
- Centro de Quimica Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal
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17
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Prazeres TJ, Beija M, Charreyre MT, Farinha JPS, Martinho JM. RAFT polymerization and self-assembly of thermoresponsive poly(N-decylacrylamide-b-N,N-diethylacrylamide) block copolymers bearing a phenanthrene fluorescent α-end group. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.11.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Felorzabihi N, Froimowicz P, Haley JC, Bardajee GR, Li B, Bovero E, van Veggel FCJM, Winnik MA. Determination of the Förster Distance in Polymer Films by Fluorescence Decay for Donor Dyes with a Nonexponential Decay Profile. J Phys Chem B 2009; 113:2262-72. [DOI: 10.1021/jp807637s] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Neda Felorzabihi
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Pablo Froimowicz
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Jeffrey C. Haley
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Ghasem Rezanejad Bardajee
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Binxin Li
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Enrico Bovero
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Frank C. J. M. van Veggel
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
| | - Mitchell A. Winnik
- Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6; and Department of Chemistry, University of Victoria, Finnerty Road, Victoria, BC, Canada V8P 5C2
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20
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Zhang J, Hu S, Rieger J, Roth SV, Gehrke R, Men Y. Effect of Annealing on the Deformation Mechanism of a Styrene/n-Butyl Acrylate Copolymer Latex Film Investigated by Synchrotron Small-Angle X-ray Scattering. Macromolecules 2008. [DOI: 10.1021/ma800435f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianqi Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Shanshan Hu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Jens Rieger
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Stephan V. Roth
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Rainer Gehrke
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, P. R. China; BASF SE, Polymer Physics, 67056 Ludwigshafen, Germany; and HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany
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21
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Tomba JP, Ye X, Li F, Winnik MA, Lau W. Polymer blend latex films: Miscibility and polymer diffusion studied by energy transfer. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.02.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Turshatov A, Adams J. A new monomeric FRET-acceptor for polymer interdiffusion experiments on polymer dispersions. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.10.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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24
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Microstructure of Triton X-100/poly (ethylene glycol) complex investigated by fluorescence resonance energy transfer. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.01.061] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Srivastava S, Srivastava AK. Radical polymerization ofn-butyl methacrylate initiated by stibonium ylide. J Appl Polym Sci 2006. [DOI: 10.1002/app.25361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Castelvetro V, De Vita C, Giannini G, Giaiacopi S. Role of anionic and nonionic surfactants on the control of particle size and latex colloidal stability in the seeded emulsion polymerization of butyl methacrylate. J Appl Polym Sci 2006. [DOI: 10.1002/app.23717] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Weng L, Liang S, Zhang L, Zhang X, Xu J. Transport of Glucose and Poly(ethylene glycol)s in Agarose Gels Studied by the Refractive Index Method. Macromolecules 2005. [DOI: 10.1021/ma047337w] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Farinha JPS, Wu J, Winnik MA, Farwaha R, Rademacher J. Polymer Diffusion in Gel-Containing Poly(vinyl acetate-co-dibutyl maleate) Latex Films. Macromolecules 2005. [DOI: 10.1021/ma050167i] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. P. S. Farinha
- Centro de Química-Física Molecular, Instituto Superior Tecnico, 1049−001 Lisboa, Portugal, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6 Canada, Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807, and Research Center, ICI Paints, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Jun Wu
- Centro de Química-Física Molecular, Instituto Superior Tecnico, 1049−001 Lisboa, Portugal, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6 Canada, Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807, and Research Center, ICI Paints, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Mitchell A. Winnik
- Centro de Química-Física Molecular, Instituto Superior Tecnico, 1049−001 Lisboa, Portugal, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6 Canada, Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807, and Research Center, ICI Paints, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Rajeev Farwaha
- Centro de Química-Física Molecular, Instituto Superior Tecnico, 1049−001 Lisboa, Portugal, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6 Canada, Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807, and Research Center, ICI Paints, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Jude Rademacher
- Centro de Química-Física Molecular, Instituto Superior Tecnico, 1049−001 Lisboa, Portugal, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6 Canada, Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807, and Research Center, ICI Paints, 16651 Sprague Road, Strongsville, Ohio 44136
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Oh JK, Yang J, Rademacher J, Farwaha R, Winnik MA. Phase Separation and Polymer Diffusion in Poly(vinyl acetate−butyl acrylate) Latex Films Prepared by Batch Miniemulsion Polymerization. Macromolecules 2004. [DOI: 10.1021/ma049449t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jung Kwon Oh
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6; ICI Paints, Research Center, 16651 Sprague Rd., Strongsville, Ohio 44136; and National Starch and Chemicals, 10 Finderne Av., Bridgewater, New Jersey 08807
| | - Jian Yang
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6; ICI Paints, Research Center, 16651 Sprague Rd., Strongsville, Ohio 44136; and National Starch and Chemicals, 10 Finderne Av., Bridgewater, New Jersey 08807
| | - Jude Rademacher
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6; ICI Paints, Research Center, 16651 Sprague Rd., Strongsville, Ohio 44136; and National Starch and Chemicals, 10 Finderne Av., Bridgewater, New Jersey 08807
| | - Rajeev Farwaha
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6; ICI Paints, Research Center, 16651 Sprague Rd., Strongsville, Ohio 44136; and National Starch and Chemicals, 10 Finderne Av., Bridgewater, New Jersey 08807
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6; ICI Paints, Research Center, 16651 Sprague Rd., Strongsville, Ohio 44136; and National Starch and Chemicals, 10 Finderne Av., Bridgewater, New Jersey 08807
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30
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Wu J, Tomba JP, Winnik MA, Farwaha R, Rademacher J. Effect of Gel Content on Polymer Diffusion in Poly(vinyl acetate-co-dibutyl maleate) Latex Films. Macromolecules 2004. [DOI: 10.1021/ma040018k] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jun Wu
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - J. Pablo Tomba
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Rajeev Farwaha
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Jude Rademacher
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
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31
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Weng L, Lu Y, Shi L, Zhang X, Zhang L, Guo X, Xu J. In Situ Investigation of Drug Diffusion in Hydrogels by the Refractive Index Method. Anal Chem 2004; 76:2807-12. [PMID: 15144191 DOI: 10.1021/ac049975i] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work describes a simple but novel analytical method for in situ monitoring of the diffusion process of drugs in hydrogels based on refractive index measurements. The diffusion process was monitored by recording the refraction of a laser beam passing through a triangular cell, which allows the determination of changes in the refractive index distribution from the deviated distance of the linear beam. Compared to conventional methods, this new method exhibits advantages such as more simplicity, lower cost, and speed. Further, the refractive index method permits the determination of the concentration distribution of solutes in the hydrogels at any time during the diffusion process under nondestructive circumstances. The precision was determined by successfully applying this new method to the diffusion of a typical antibiotic drug, cefazolin sodium, in agarose gels of various concentrations. By employing Fick's second law, the diffusion behavior was investigated and the diffusion coefficients of cefazolin sodium in agarose gels were therefore obtained. Amsden's physical model based on obstruction effect was applied to the simulation of the diffusion process of cefazolin sodium and turned out to fit the results quite well.
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Affiliation(s)
- Lihui Weng
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, PR China
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32
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Wu J, Tomba JP, Winnik MA, Farwaha R, Rademacher J. Temperature Dependence of Polymer Diffusion in Poly(vinyl acetate-co-dibutyl maleate) Latex Films. Macromolecules 2004. [DOI: 10.1021/ma030569v] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Wu
- Department of Chemistry, 80 St. George Street, University of Toronto, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - J. Pablo Tomba
- Department of Chemistry, 80 St. George Street, University of Toronto, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Mitchell A. Winnik
- Department of Chemistry, 80 St. George Street, University of Toronto, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Rajeev Farwaha
- Department of Chemistry, 80 St. George Street, University of Toronto, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
| | - Jude Rademacher
- Department of Chemistry, 80 St. George Street, University of Toronto, Toronto, Ontario M5S 3H6, Canada; Vinamul Polymers, 10 Finderne Avenue, Bridgewater, New Jersey 08807; and ICI Paints, Research Center, 16651 Sprague Road, Strongsville, Ohio 44136
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