201
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Li Y, Zhang YY, Hu LF, Zhang XH, Du BY, Xu JT. Carbon dioxide-based copolymers with various architectures. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.02.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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202
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Comb-like Poly(N-(2-hydroxypropyl) methacrylamide) Doxorubicin Conjugates: The Influence of Polymer Architecture and Composition on the Biological Properties. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2159-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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203
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Matyjaszewski K. Advanced Materials by Atom Transfer Radical Polymerization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706441. [PMID: 29582478 DOI: 10.1002/adma.201706441] [Citation(s) in RCA: 373] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/18/2017] [Indexed: 05/21/2023]
Abstract
Atom transfer radical polymerization (ATRP) has been successfully employed for the preparation of various advanced materials with controlled architecture. New catalysts with strongly enhanced activity permit more environmentally benign ATRP procedures using ppm levels of catalyst. Precise control over polymer composition, topology, and incorporation of site specific functionality enables synthesis of well-defined gradient, block, comb copolymers, polymers with (hyper)branched structures including stars, densely grafted molecular brushes or networks, as well as inorganic-organic hybrid materials and bioconjugates. Examples of specific applications of functional materials include thermoplastic elastomers, nanostructured carbons, surfactants, dispersants, functionalized surfaces, and biorelated materials.
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204
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Nadamoto K, Maruyama K, Fujii N, Ikeda T, Kihara SI, Haino T. Supramolecular Copolymerization by Sequence Reorganization of a Supramolecular Homopolymer. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800980] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kouhei Nadamoto
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Kei Maruyama
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Naoka Fujii
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Toshiaki Ikeda
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
- Present address: Department of Chemistry; School of Science; Tokai University; 4-1-1 Kitakaname Hiratsuka, Kanagawa 259-1292 Japan
| | - Shin-ichi Kihara
- Department of Chemical Engineering; Graduate School of Engineering; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Takeharu Haino
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
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205
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Nadamoto K, Maruyama K, Fujii N, Ikeda T, Kihara SI, Haino T. Supramolecular Copolymerization by Sequence Reorganization of a Supramolecular Homopolymer. Angew Chem Int Ed Engl 2018; 57:7028-7033. [DOI: 10.1002/anie.201800980] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/28/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Kouhei Nadamoto
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Kei Maruyama
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Naoka Fujii
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Toshiaki Ikeda
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
- Present address: Department of Chemistry; School of Science; Tokai University; 4-1-1 Kitakaname Hiratsuka, Kanagawa 259-1292 Japan
| | - Shin-ichi Kihara
- Department of Chemical Engineering; Graduate School of Engineering; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Takeharu Haino
- Department of Chemistry; Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
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206
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Yang J, Lu S, Xing T, Chen G. Preparation, Structure, and Properties of Silk Fabric Grafted with 2-Hydroxypropyl Methacrylate Using the HRP Biocatalyzed ATRP Method. Polymers (Basel) 2018; 10:polym10050557. [PMID: 30966591 PMCID: PMC6415408 DOI: 10.3390/polym10050557] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/18/2018] [Accepted: 05/19/2018] [Indexed: 11/27/2022] Open
Abstract
Atom transfer radical polymerization (ATRP) is a “living”/controlled radical polymerization, which is also used for surface grafting of various materials including textiles. However, the commonly used metal complex catalyst, CuBr, is mildly toxic and results in unwanted color for textiles. In order to replace the transition metal catalyst of surface-initiated ATRP, the possibility of HRP biocatalyst was investigated in this work. 2-hydroxypropyl methacrylate (HPMA) was grafted onto the surface of silk fabric using the horseradish peroxidase (HRP) biocatalyzed ATRP method, which is used to improve the crease resistance of silk fabric. The structure of grafted silk fabric was characterized by Fourier transform infrared spectrum, X-ray photoelectron spectroscopy, thermogravimetic analysis, and scanning electron microscopy. The results showed that HPMA was successfully grafted onto silk fabric. Compared with the control silk sample, the wrinkle recovery property of grafted silk fabric was greatly improved, especially the wet crease recovery property. However, the whiteness, breaking strength, and moisture regain of grafted silk fabric decreased somewhat. The present work provides a novel, biocatalyzed, environmentally friendly ATRP method to obtain functional silk fabric, which is favorable for clothing application and has potential for medical materials.
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Affiliation(s)
- Jinqiu Yang
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China.
| | - Shenzhou Lu
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China.
| | - Tieling Xing
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China.
| | - Guoqiang Chen
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China.
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207
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Wang H, Dai T, Li S, Zhou S, Yuan X, You J, Wang C, Mukwaya V, Zhou G, Liu G, Wei X, Dou H. Scalable and cleavable polysaccharide nanocarriers for the delivery of chemotherapy drugs. Acta Biomater 2018; 72:206-216. [PMID: 29567106 DOI: 10.1016/j.actbio.2018.03.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 02/28/2018] [Accepted: 03/12/2018] [Indexed: 12/13/2022]
Abstract
While polysaccharide-based nanocarriers have been recognized for their crucial roles in tumor theranostics, the industrial-scale production of nanotherapeutics still remains a significant challenge. Most current approaches adopt a postpolymerization self-assembly strategy that follows a separate synthetic step and thus suffers from subgram scale yields and a limited range of application. In this study, we demonstrate the kilogram-scale formation of polysaccharide-polyacrylate nanocarriers at concentrations of up to 5 wt% through a one-pot approach - starting from various acrylate monomers and polysaccharides - that combines aspects of hydrophobicity-induced self-assembly with the free radical graft copolymerization of acrylate monomers from polysaccharide backbones into a single process that is thus denoted as a graft copolymerization induced self-assembly. We also demonstrate that this novel approach is applicable to a broad range of polysaccharides and acrylates. Notably, by choosing a crosslinker that bears a disulfide group and two vinyl capping groups to structurally lock the nanocarriers, the products are rendered cleavable in the reducing environments encountered at tumor sites and thus provide ideal candidates for the construction of anticancer nanotherapeutic systems. In vitro and in vivo studies demonstrated that the use of this nanocarrier for the delivery of doxorubicin hydrochloride (DOX) significantly decreased the side effects of DOX and improved the bio-safety of the chemotherapy accordingly. STATEMENT OF SIGNIFICANCE While polysaccharide-based nanocarriers have been recognized for their crucial roles in tumor theranostics, the industrial-scale production of these nanotherapeutics still remains a significant challenge. Most current approaches adopt a post-polymerization self-assembly strategy which that follows a separate synthetic step, and thus suffers from sub-gram scale yields and a limited range of application. In this study, the hydrophobic effect was combined with free radical polymerization to facilitate the graft copolymerization-induced self-assembly (GISA) of acrylate monomers with various hydrophobicities to construct cleavable polysaccharide-polyacrylate nanocarriers at a high efficiency with excellent potential for industrial-scale production. We envision that these nanocarriers will contribute to the development of tumor nanotheranostics that combine the biological functionalities of polysaccharides with the unmatched application-specific flexibility of nanocarriers.
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208
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Effect of Halogen Chain End Fidelity on the Synthesis of Poly(methyl methacrylate-b-styrene) by ATRP. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2139-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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209
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Fouling Release Coatings Based on Polydimethylsiloxane with the Incorporation of Phenylmethylsilicone Oil. COATINGS 2018. [DOI: 10.3390/coatings8050153] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this study, phenylmethylsilicone oil (PSO) with different viscosity was used for research in fouling release coatings based on polydimethylsiloxane (PDMS). The surface properties and mechanical properties of the coatings were investigated, while the leaching behavior of PSO from the coatings was studied. Subsequently, the antifouling performance of the coatings was investigated by the benthic diatom adhesion test. The results showed that the coatings with high-viscosity PSO exhibited high levels of hydrophobicity and PSO leaching, while the high PSO content significantly decreased the elastic modulus of the coatings and prolonged the release time of PSO. The antifouling results indicated that the incorporation of PSO into coatings enhanced the antifouling performance of the coating by improving the coating hydrophobicity and decreasing the coating elastic modulus, while the leaching of PSO from the coatings improved the fouling removal rate of the coating. This suggests a double enhancement effect on the antifouling performance of fouling release coatings based on PDMS with PSO incorporated.
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210
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Nguyen HVT, Gallagher NM, Vohidov F, Jiang Y, Kawamoto K, Zhang H, Park JV, Huang Z, Ottaviani MF, Rajca A, Johnson JA. Scalable Synthesis of Multivalent Macromonomers for ROMP. ACS Macro Lett 2018; 7:472-476. [PMID: 30271675 PMCID: PMC6162068 DOI: 10.1021/acsmacrolett.8b00201] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The polymerization of functional monomers provides direct access to functional polymers without need for postpolymerization modification; however, monomer synthesis can become a bottleneck of this approach. New methods that enable rapid installation of functionality into monomers for living polymerization are valuable. Here, we report the three-step convergent synthesis (two-step longest linear sequence) of a divalent exo-norbornene imide capable of efficient coupling with various nucleophiles and azides to produce diversely functionalized branched macromonomers optimized for ring-opening metathesis polymerization (ROMP). In addition, we describe an efficient iterative procedure for the synthesis of tri-and tetra-valent branched macromonomers. We demonstrate the use of these branched macromonomers for the synthesis of Janus bottlebrush block copolymers as well as for the generation of bottlebrush polymers with up to three conjugated small molecules per repeat unit. This work significantly expands the scalability and diversity of nanostructured macromolecules accessible via ROMP.
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Affiliation(s)
- Hung V.-T. Nguyen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Nolan M. Gallagher
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Farrukh Vohidov
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Yivan Jiang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ken Kawamoto
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Hui Zhang
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Jiwon V. Park
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Zhihao Huang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | | | - Andrzej Rajca
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Jeremiah A. Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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211
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Löhmann O, Micciulla S, Soltwedel O, Schneck E, von Klitzing R. Swelling Behavior of Composite Systems: Mutual Effects between Polyelectrolyte Brushes and Multilayers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00359] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oliver Löhmann
- Department of Physics, Technische Universität Darmstadt, Darmstadt 64287, Germany
| | - Samantha Micciulla
- Biomaterials Department, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
| | - Olaf Soltwedel
- Department of Physics, Technische Universität München, München 80333, Germany
| | - Emanuel Schneck
- Biomaterials Department, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
| | - Regine von Klitzing
- Department of Physics, Technische Universität Darmstadt, Darmstadt 64287, Germany
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212
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Knapp KA, Nuñez IM, Shipp DA. Effect of polymer chain architecture on the aqueous solution properties of amphiphilic copolymers: A study of poly(N-vinylpyrrolidone-co-vinyl laurate). POLYMER 2018. [DOI: 10.1016/j.polymer.2018.02.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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213
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Cao X, Shi Y, Gan W, Gao H. Tandem Functionalization in a Highly Branched Polymer with Layered Structure. Chemistry 2018; 24:5974-5981. [DOI: 10.1002/chem.201800683] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Xiaosong Cao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame Indiana 46556 USA
| | - Yi Shi
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame Indiana 46556 USA
| | - Weiping Gan
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame Indiana 46556 USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame Indiana 46556 USA
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214
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Meleshko TK, Ivanov IV, Kashina AV, Bogorad NN, Simonova MA, Zakharova NV, Filippov AP, Yakimansky AV. Diphilic Macromolecular Brushes with a Polyimide Backbone and Poly(methacrylic acid) Blocks in Side Chains. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418010098] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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215
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Laun J, Marchal W, Trouillet V, Welle A, Hardy A, Van Bael MK, Barner-Kowollik C, Junkers T. Reversible Surface Engineering via Nitrone-Mediated Radical Coupling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3244-3255. [PMID: 29457981 DOI: 10.1021/acs.langmuir.7b03167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Efficient and simple polymer conjugation reactions are critical for introducing functionalities on surfaces. For polymer surface grafting, postpolymerization modifications are often required, which can impose a significant synthetic hurdle. Here, we report two strategies that allow for reversible surface engineering via nitrone-mediated radical coupling (NMRC). Macroradicals stemming from the activation of polymers generated by copper-mediated radical polymerization are grafted via radical trapping with a surface-immobilized nitrone or a solution-borne nitrone. Since the product of NMRC coupling features an alkoxyamine linker, the grafting reactions can be reversed or chain insertions can be performed via nitroxide-mediated polymerization (NMP). Poly( n-butyl acrylate) ( Mn = 1570 g·mol-1, D̵ = 1.12) with a bromine terminus was reversibly grafted to planar silicon substrates or silica nanoparticles as successfully evidenced via X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry, and grazing angle attenuated total reflection Fourier-transform infrared spectroscopy (GAATR-FTIR). NMP chain insertions of styrene are evidenced via GAATR-FTIR. On silica nanoparticles, an NMRC grafting density of close to 0.21 chains per nm2 was determined by dynamic light scattering and thermogravimetric analysis. Concomitantly, a simple way to decorate particles with nitroxide radicals with precise control over the radical concentration is introduced. Silica microparticles and zinc oxide, barium titanate, and silicon nanoparticles were successfully functionalized.
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Affiliation(s)
| | | | | | | | | | | | - Christopher Barner-Kowollik
- School of Chemistry, Physics and Mechanical Engineering , Queensland University of Technology (QUT) , 2 George Street , QLD 4000 , Brisbane , Australia
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie , Karlsruhe Institute of Technology (KIT) , Engesserstraße 18 , 76128 Karlsruhe , Germany
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216
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Ran J, Ding L, Yu D, Zhang X, Hu M, Wu L, Xu T. A novel strategy to construct highly conductive and stabilized anionic channels by fluorocarbon grafted polymers. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.050] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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217
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Yang G, Kim K, Wang W, Chen B, Mattoussi H, Hallinan DT. Scaling Laws for Polymer Chains Grafted onto Nanoparticles. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guang Yang
- Aero‐Propulsion, Mechatronics, and Energy Center Florida State University 2003 Levy Avenue Tallahassee FL 32310 USA
- Chemical and Biomedical Engineering Department FAMU‐FSU College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
| | - Kyoungmin Kim
- Aero‐Propulsion, Mechatronics, and Energy Center Florida State University 2003 Levy Avenue Tallahassee FL 32310 USA
- Chemical and Biomedical Engineering Department FAMU‐FSU College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
| | - Wentao Wang
- Chemistry and Biochemistry Department Florida State University 95 Chieftan Way Tallahassee FL 32306‐4390 USA
| | - Banghao Chen
- Chemistry and Biochemistry Department Florida State University 95 Chieftan Way Tallahassee FL 32306‐4390 USA
| | - Hedi Mattoussi
- Chemistry and Biochemistry Department Florida State University 95 Chieftan Way Tallahassee FL 32306‐4390 USA
| | - Daniel T. Hallinan
- Aero‐Propulsion, Mechatronics, and Energy Center Florida State University 2003 Levy Avenue Tallahassee FL 32310 USA
- Chemical and Biomedical Engineering Department FAMU‐FSU College of Engineering 2525 Pottsdamer Street Tallahassee FL 32310 USA
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218
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Chen Y, Abdellatif MM, Nomura K. Olefin metathesis polymerization: Some recent developments in the precise polymerizations for synthesis of advanced materials (by ROMP, ADMET). Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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219
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Light-enabled reversible self-assembly and tunable optical properties of stable hairy nanoparticles. Proc Natl Acad Sci U S A 2018; 115:E1391-E1400. [PMID: 29386380 DOI: 10.1073/pnas.1714748115] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The ability to dynamically organize functional nanoparticles (NPs) via the use of environmental triggers (temperature, pH, light, or solvent polarity) opens up important perspectives for rapid and convenient construction of a rich variety of complex assemblies and materials with new structures and functionalities. Here, we report an unconventional strategy for crafting stable hairy NPs with light-enabled reversible and reliable self-assembly and tunable optical properties. Central to our strategy is to judiciously design amphiphilic star-like diblock copolymers comprising inner hydrophilic blocks and outer hydrophobic photoresponsive blocks as nanoreactors to direct the synthesis of monodisperse plasmonic NPs intimately and permanently capped with photoresponsive polymers. The size and shape of hairy NPs can be precisely tailored by modulating the length of inner hydrophilic block of star-like diblock copolymers. The perpetual anchoring of photoresponsive polymers on the NP surface renders the attractive feature of self-assembly and disassembly of NPs on demand using light of different wavelengths, as revealed by tunable surface plasmon resonance absorption of NPs and the reversible transformation of NPs between their dispersed and aggregated states. The dye encapsulation/release studies manifested that such photoresponsive NPs may be exploited as smart guest molecule nanocarriers. By extension, the star-like block copolymer strategy enables the crafting of a family of stable stimuli-responsive NPs (e.g., temperature- or pH-sensitive polymer-capped magnetic, ferroelectric, upconversion, or semiconducting NPs) and their assemblies for fundamental research in self-assembly and crystallization kinetics of NPs as well as potential applications in optics, optoelectronics, magnetic technologies, sensory materials and devices, catalysis, nanotechnology, and biotechnology.
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220
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Liu X, Appelhans D, Zhang T, Voit B. Rapid Synthesis of Dual-Responsive Hollow Capsules with Controllable Membrane Thickness by Surface-Initiated SET-LRP Polymerization. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02347] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaoling Liu
- Leibniz-Institute
für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Organic
Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institute
für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
| | - Tao Zhang
- Organic
Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institute
für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Organic
Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
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221
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Wang XH, Wu MX, Jiang W, Yuan BL, Tang J, Yang YW. Nanoflower-Shaped Biocatalyst with Peroxidase Activity Enhances the Reversible Addition–Fragmentation Chain Transfer Polymerization of Methacrylate Monomers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02650] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xing-Huo Wang
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Ming-Xue Wu
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Wei Jiang
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Bo-Lei Yuan
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Jun Tang
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Ying-Wei Yang
- International Joint Research Laboratory
of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
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222
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Liu X, Carbonell C, Braunschweig AB. Towards scanning probe lithography-based 4D nanoprinting by advancing surface chemistry, nanopatterning strategies, and characterization protocols. Chem Soc Rev 2018; 45:6289-6310. [PMID: 27460011 DOI: 10.1039/c6cs00349d] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Biointerfaces direct some of the most complex biological events, including cell differentiation, hierarchical organization, and disease progression, or are responsible for the remarkable optical, electronic, and biological behavior of natural materials. Chemical information encoded within the 4D nanostructure of biointerfaces - comprised of the three Cartesian coordinates (x, y, z), and chemical composition of each molecule within a given volume - dominates their interfacial properties. As such, there is a strong interest in creating printing platforms that can emulate the 4D nanostructure - including both the chemical composition and architectural complexity - of biointerfaces. Current nanolithography technologies are unable to recreate 4D nanostructures with the chemical or architectural complexity of their biological counterparts because of their inability to position organic molecules in three dimensions and with sub-1 micrometer resolution. Achieving this level of control over the interfacial structure requires transformational advances in three complementary research disciplines: (1) the scope of organic reactions that can be successfully carried out on surfaces must be increased, (2) lithography tools are needed that are capable of positioning soft organic and biologically active materials with sub-1 micrometer resolution over feature diameter, feature-to-feature spacing, and height, and (3) new techniques for characterizing the 4D structure of interfaces should be developed and validated. This review will discuss recent advances in these three areas, and how their convergence is leading to a revolution in 4D nanomanufacturing.
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Affiliation(s)
- Xiaoming Liu
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Carlos Carbonell
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA and Advanced Science Research Center (ASRC), City University of New York, New York, New York 10031, USA
| | - Adam B Braunschweig
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA and Advanced Science Research Center (ASRC), City University of New York, New York, New York 10031, USA and Department of Chemistry and Biochemistry, City University of New York, Hunter College, 695 Park Avenue, New York, New York 10065, USA.
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223
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Fu L, Simakova A, Fantin M, Wang Y, Matyjaszewski K. Direct ATRP of Methacrylic Acid with Iron-Porphyrin Based Catalysts. ACS Macro Lett 2018; 7:26-30. [PMID: 29963331 PMCID: PMC6023406 DOI: 10.1021/acsmacrolett.7b00909] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An iron porphyrin catalyst, derived from the active center of proteins such as horseradish peroxidase and hemoglobin, was successfully used for the atom transfer radical polymerizations (ATRP) of methacrylic acid. ATRP of methacrylic acid and other acidic monomers is challenging due to Cu complexation by carboxylates, protonation of the ligand, and displacement of the halogen chain end. A robust mesohemin-based catalyst provided controlled ATRP of methacrylic acid, yielding poly(methacrylic acid) with Mn ≥ 20000 and dispersity Đ < 1.5. Retention of halogen chain end was confirmed by successful chain extension of a poly-(methacrylic acid)-Br macroinitiator.
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Affiliation(s)
- Liye Fu
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Antonina Simakova
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Marco Fantin
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Yi Wang
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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224
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Li X, Iocozzia J, Chen Y, Zhao S, Cui X, Wang W, Yu H, Lin S, Lin Z. From Precision Synthesis of Block Copolymers to Properties and Applications of Nanoparticles. Angew Chem Int Ed Engl 2018; 57:2046-2070. [DOI: 10.1002/anie.201705019] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/03/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao Li
- Department of Material Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the, Ministry of Education Peking University Beijing 100871 P.R. China
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - James Iocozzia
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Yihuang Chen
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Shiqiang Zhao
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Xun Cui
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Wei Wang
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
- Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 P.R. China
| | - Haifeng Yu
- Department of Material Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the, Ministry of Education Peking University Beijing 100871 P.R. China
| | - Shaoliang Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 P.R. China
| | - Zhiqun Lin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
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225
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Li X, Iocozzia J, Chen Y, Zhao S, Cui X, Wang W, Yu H, Lin S, Lin Z. Von der Präzisionssynthese von Blockcopolymeren zu Eigenschaften und Anwendungen von funktionellen Nanopartikeln. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201705019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao Li
- Department of Material Science and Engineering und Key Laboratory of Polymer Chemistry and Physics of the, Ministry of Education Peking University Beijing 100871 Volksrepublik China
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - James Iocozzia
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Yihuang Chen
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Shiqiang Zhao
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Xun Cui
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Wei Wang
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
- Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 Volksrepublik China
| | - Haifeng Yu
- Department of Material Science and Engineering und Key Laboratory of Polymer Chemistry and Physics of the, Ministry of Education Peking University Beijing 100871 Volksrepublik China
| | - Shaoliang Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 Volksrepublik China
| | - Zhiqun Lin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
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226
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Wang W, Bai L, Chen H, Xu H, Tao Q. Synthesis of PAN copolymer containing pendant 2-ureido-4[1H]-pyrimidone (UPy) units by RAFT polymerization and its adsorption behaviors of Hg2+. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2268-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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227
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Nakamura Y, Ebeling B, Wolpers A, Monteil V, D'Agosto F, Yamago S. Controlled Radical Polymerization of Ethylene Using Organotellurium Compounds. Angew Chem Int Ed Engl 2018; 57:305-309. [PMID: 29144596 DOI: 10.1002/anie.201709946] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/13/2017] [Indexed: 11/06/2022]
Abstract
The first successfully controlled radical polymerization (CRP) of ethylene is reported using several organotellurium chain-transfer agents (CTAs) under mild conditions (70 °C, 200 bar of ethylene) within the concept of organotellurium-mediated radical polymerization (TERP). In contrast to preceding works on CRPs of ethylene applying reversible addition-fragmentation chain-transfer (RAFT), the TERP system provided a high livingness and chain-end functionalization of polyethylene chains. Molar-mass distributions with dispersities between 1.3 and 2.1 were obtained up to average molar masses of 5000 g mol-1 . As in the RAFT system, the high reactivity of the growing polyethylenyl radical led to an inherent side reaction. For the presented TERP systems, however, this side reaction did not result in dead chains, while it could even be effectively suppressed by a good choice of the CTA.
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Affiliation(s)
- Yasuyuki Nakamura
- Institute for Chemical Research, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
| | - Bastian Ebeling
- Université de Lyon, Université Lyon 1, CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP, 69616, Villeurbanne CEDEX, France
| | - Arne Wolpers
- Université de Lyon, Université Lyon 1, CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP, 69616, Villeurbanne CEDEX, France
| | - Vincent Monteil
- Université de Lyon, Université Lyon 1, CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP, 69616, Villeurbanne CEDEX, France
| | - Franck D'Agosto
- Université de Lyon, Université Lyon 1, CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP, 69616, Villeurbanne CEDEX, France
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
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228
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Phase-selectively soluble, polymer-supported salen catalyst prepared using atom transfer radical polymerization (ATRP). POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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229
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Sun Z, Nomura K. One-pot synthesis of end-functionalised soluble star-shaped polymers by living ring-opening metathesis polymerisation using a molybdenum-alkylidene catalyst. RSC Adv 2018; 8:27703-27708. [PMID: 35542730 PMCID: PMC9084289 DOI: 10.1039/c8ra05229h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/30/2018] [Indexed: 12/16/2022] Open
Abstract
Precise synthesis of soluble star-shaped polymers has been achieved by adopting living ring-opening metathesis polymerisation (ROMP) using a molybdenum-alkylidene catalyst with sequential addition of norbornene and cross-linking agent; the method provides efficient one-pot synthesis of high molecular weight end-functionalised star-shaped polymers (Mn = >1.37 × 105) with more arms (branching) with rather low PDI values (Mw/Mn = 1.17–1.37) under the optimised conditions. Precise synthesis of star-shaped polymers has been achieved by living ROMP using a molybdenum catalyst with sequential addition of norbornene and cross-linker.![]()
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Affiliation(s)
- Zelin Sun
- Department of Chemistry
- Faculty of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Kotohiro Nomura
- Department of Chemistry
- Faculty of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
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230
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Costa JRC, Góis JR, De Bon F, Serra AC, Guliashvili T, Isse AA, Gennaro A, Coelho JFJ. Addressing the role of triphenylphosphine in copper catalyzed ATRP. Polym Chem 2018. [DOI: 10.1039/c8py01245h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Atom Transfer Radical Polymerization (ATRP) process with triphenylphosphine (PPh3) and [CuIIMe6TREN]2+ as the catalyst system is reported.
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Affiliation(s)
- João R. C. Costa
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE)
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra
- Portugal
| | - Joana R. Góis
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE)
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra
- Portugal
| | - Francesco De Bon
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Arménio C. Serra
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE)
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra
- Portugal
| | - Tamaz Guliashvili
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE)
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra
- Portugal
| | - Abdirisak A. Isse
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Armando Gennaro
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Jorge F. J. Coelho
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE)
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra
- Portugal
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231
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Pietrasik J, Budzałek K, Zhang Y, Hałagan K, Kozanecki M. Macromolecular Templates for Synthesis of Inorganic Nanoparticles. ACS SYMPOSIUM SERIES 2018. [DOI: 10.1021/bk-2018-1285.ch010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Joanna Pietrasik
- Institute of Polymer and Dye Technology, Lodz University of Technology, Zeromskiego 116, 90 924 Lodz, Poland
| | - Katarzyna Budzałek
- Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90 924 Lodz, Poland
| | - Yaoming Zhang
- Institute of Polymer and Dye Technology, Lodz University of Technology, Zeromskiego 116, 90 924 Lodz, Poland
| | - Krzysztof Hałagan
- Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90 924 Lodz, Poland
| | - Marcin Kozanecki
- Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90 924 Lodz, Poland
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232
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Vinciguerra D, Tran J, Nicolas J. Telechelic polymers from reversible-deactivation radical polymerization for biomedical applications. Chem Commun (Camb) 2018; 54:228-240. [DOI: 10.1039/c7cc08544c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Strategies for the synthesis of telechelic polymers by reversible-activation radical polymerization for biomedical applications are covered spanning from drug delivery and targeting to theranostics and sensing.
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Affiliation(s)
- Daniele Vinciguerra
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
| | - Johanna Tran
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
| | - Julien Nicolas
- Institut Galien Paris-Sud
- UMR CNRS 8612
- Univ Paris-Sud
- Faculté de Pharmacie
- F-92296 Châtenay-Malabry cedex
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233
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Namivandi-Zangeneh R, Kwan RJ, Nguyen TK, Yeow J, Byrne FL, Oehlers SH, Wong EHH, Boyer C. The effects of polymer topology and chain length on the antimicrobial activity and hemocompatibility of amphiphilic ternary copolymers. Polym Chem 2018. [DOI: 10.1039/c7py01069a] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Hyperbranched random copolymers that consist of ethylhexyl hydrophobic groups have the best selectivity compared to linear random and block copolymers.
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Affiliation(s)
- Rashin Namivandi-Zangeneh
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
| | - Rebecca J. Kwan
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
| | - Thuy-Khanh Nguyen
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
| | - Jonathan Yeow
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
| | - Frances L. Byrne
- School of Biotechnology and Biomolecular Sciences
- UNSW Australia
- Sydney
- Australia
| | - Stefan H. Oehlers
- Tuberculosis Research Program
- Centenary Institute
- Camperdown
- Australia
- Sydney Medical School
| | - Edgar H. H. Wong
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- UNSW Australia
- Sydney
- Australia
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234
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D'hooge DR, Fantin M, Magenau AJD, Konkolewicz D, Matyjaszewski K. Two-compartment kinetic Monte Carlo modelling of electrochemically mediated ATRP. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00156a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Novel eATRP mechanistic insights are formulated, considering a two-compartment kinetic Monte Carlo model with catalyst concentration gradients accounted for.
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Affiliation(s)
- Dagmar R. D'hooge
- Center for Macromolecular Engineering
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Marco Fantin
- Center for Macromolecular Engineering
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Andrew J. D. Magenau
- Center for Macromolecular Engineering
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Dominik Konkolewicz
- Center for Macromolecular Engineering
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Krzysztof Matyjaszewski
- Center for Macromolecular Engineering
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
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235
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Buss BL, Beck LR, Miyake GM. Synthesis of Star Polymers using Organocatalyzed Atom Transfer Radical Polymerization Through a Core-first Approach. Polym Chem 2017; 9:1658-1665. [PMID: 29628993 DOI: 10.1039/c7py01833a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Synthetic routes to higher ordered polymeric architectures are important tools for advanced materials design and realization. In this study, organocatalyzed atom transfer radical polymerization is employed for the synthesis of star polymers through a core-first approach using a visible-light absorbing photocatalyst, 3,7-di(4-biphenyl)-1-naphthalene-10-phenoxazine. Structurally similar multifunctional initiators possessing 2, 3, 4, 6, or 8 initiating sites were used in this study for the synthesis of linear telechelic polymers and star polymers typically possessing dispersities lower than 1.5 while achieving high initiator efficiencies. Furthermore, no evidence of undesirable star-star coupling reactions was observed, even at high monomer conversions and high degrees of polymerization. The utility of this system is further exemplified through the synthesis of well-defined diblock star polymers.
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Affiliation(s)
- Bonnie L Buss
- Department of Chemistry, Colorado State University, Fort Collins, CO
| | - Logan R Beck
- Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, CO
| | - Garret M Miyake
- Department of Chemistry, Colorado State University, Fort Collins, CO.,Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, CO.,Materials Science and Engineering Program, University of Colorado Boulder, Boulder, CO
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236
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Wei G, Prabhu VM, Piunova VA, Carr AC, Swope WC, Miller RD. Spatial Distribution of Hydrophobic Drugs in Model Nanogel-Core Star Polymers. Macromolecules 2017; 50:9702-9712. [PMID: 32636533 DOI: 10.1021/acs.macromol.7b02061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Star polymers with a cross-linked nanogel core are promising carriers of cargo for therapeutic applications due to the synthetic control of amphiphilicity of arms and stability at infinite dilution. Three nanogel-core star polymers were investigated to understand how the arm-block chemical structure controls loading efficiency of a model drug, ibuprofen, and its spatial distribution. The spatial distribution profiles of hydrophobic core, hydrophilic corona, and encapsulated drug were determined by small-angle neutron scattering (SANS). SANS provides the nanometer-scale sensitivity to determine how the arm-block chemistry enhances the sequestering of ibuprofen. Validated molecular dynamics simulations capture the trends in drug profile and polymer segment distribution with further details on drug orientation distribution. This work provides a basis to study structure-function relationships in macromolecular-based carriers of cargo and represents a path toward validated and predictive simulation.
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Affiliation(s)
- Guangmin Wei
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Vivek M Prabhu
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Victoria A Piunova
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Amber C Carr
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - William C Swope
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Robert D Miller
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
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237
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Nakamura Y, Ebeling B, Wolpers A, Monteil V, D'Agosto F, Yamago S. Controlled Radical Polymerization of Ethylene Using Organotellurium Compounds. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709946] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yasuyuki Nakamura
- Institute for Chemical Research; Kyoto University; Gokasyo Uji, Kyoto 611-0011 Japan
| | - Bastian Ebeling
- Université de Lyon, Université Lyon 1; CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP; 69616 Villeurbanne CEDEX France
| | - Arne Wolpers
- Université de Lyon, Université Lyon 1; CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP; 69616 Villeurbanne CEDEX France
| | - Vincent Monteil
- Université de Lyon, Université Lyon 1; CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP; 69616 Villeurbanne CEDEX France
| | - Franck D'Agosto
- Université de Lyon, Université Lyon 1; CPE Lyon, CNRS UMR 5265, Laboratoire C2P2, Équipe LCPP; 69616 Villeurbanne CEDEX France
| | - Shigeru Yamago
- Institute for Chemical Research; Kyoto University; Gokasyo Uji, Kyoto 611-0011 Japan
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238
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Kouser R, Vashist A, Zafaryab M, Rizvi MA, Ahmad S. Biocompatible and mechanically robust nanocomposite hydrogels for potential applications in tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 29519426 DOI: 10.1016/j.msec.2017.11.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The synergistic contributions of nanofillers and polymer matrix induce remarkable properties in nanocomposite hydrogels. Present article reports the facile synthesis of biocompatible nanocomposite hydrogels using microporous multi wall carbon nanotubes (MWCNTs) dispersed chitosan (CH)-Acrylonitrile (AN), N,N'-methylenebisacrylamide (MBAAm) and linseed polyol through solution blending method. Polyol and N,N'-methylenebisacrylamide (MBAAm) was used as the crosslinking agent. The structural characterization and formation of highly crosslinked network with dendrimer morphology was confirmed by FT-IR and scanning electron microscope (SEM) analysis. In addition, transmission electron microscope (TEM) was employed to visualize the size and proper dispersion of MWCNT in the polymer matrices. The strong mechanical strength exhibited by these hydrogel films was confirmed by the tensile strength analysis. The dispersion of the conductive nanofillers, like MWCNTs has significantly enhanced the strength, which revealed unique characteristics of these hydrogel films. The high swelling capacity and sustained expansion of hydrogel films were confirmed in the buffer solutions of pH4 and 7.4. The biodegradability of these films was estimated by hydrolytic and soil burial tests. The biocompatibility test was conducted on Human Embryonic Kidney (HEK-293) cell line, which confirmed the non-toxic and biocompatible nature of these films. Incorporation of carbon nanotubes (MWCNTs) in the polymer matrix enhanced the film forming properties, high modulus and tensile strength, swelling ability, biodegradable and biocompatibility. These properties can be finely tuned through the variation of MWCNT concentrations, as a result these nanostructure hydrogel films have potential scope for their diverse applications in the field of tissue engineering.
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Affiliation(s)
- Rabia Kouser
- Material Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Arti Vashist
- Material Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India; Center of Personalized Nanomedicine, Institute of NeuroImmune Pharmacology, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami FL-33199, USA
| | - Md Zafaryab
- Genome Biology Lab., Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Moshahid A Rizvi
- Genome Biology Lab., Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Sharif Ahmad
- Material Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
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239
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Chang AB, Lin TP, Thompson NB, Luo SX, Liberman-Martin AL, Chen HY, Lee B, Grubbs RH. Design, Synthesis, and Self-Assembly of Polymers with Tailored Graft Distributions. J Am Chem Soc 2017; 139:17683-17693. [PMID: 29117478 DOI: 10.1021/jacs.7b10525] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Grafting density and graft distribution impact the chain dimensions and physical properties of polymers. However, achieving precise control over these structural parameters presents long-standing synthetic challenges. In this report, we introduce a versatile strategy to synthesize polymers with tailored architectures via grafting-through ring-opening metathesis polymerization (ROMP). One-pot copolymerization of an ω-norbornenyl macromonomer and a discrete norbornenyl comonomer (diluent) provides opportunities to control the backbone sequence and therefore the side chain distribution. Toward sequence control, the homopolymerization kinetics of 23 diluents were studied, representing diverse variations in the stereochemistry, anchor groups, and substituents. These modifications tuned the homopolymerization rate constants over 2 orders of magnitude (0.36 M-1 s-1 < khomo < 82 M-1 s-1). Rate trends were identified and elucidated by complementary mechanistic and density functional theory (DFT) studies. Building on this foundation, complex architectures were achieved through copolymerizations of selected diluents with a poly(d,l-lactide) (PLA), polydimethylsiloxane (PDMS), or polystyrene (PS) macromonomer. The cross-propagation rate constants were obtained by nonlinear least-squares fitting of the instantaneous comonomer concentrations according to the Mayo-Lewis terminal model. In-depth kinetic analyses indicate a wide range of accessible macromonomer/diluent reactivity ratios (0.08 < r1/r2 < 20), corresponding to blocky, gradient, or random backbone sequences. We further demonstrated the versatility of this copolymerization approach by synthesizing AB graft diblock polymers with tapered, uniform, and inverse-tapered molecular "shapes." Small-angle X-ray scattering analysis of the self-assembled structures illustrates effects of the graft distribution on the domain spacing and backbone conformation. Collectively, the insights provided herein into the ROMP mechanism, monomer design, and homo- and copolymerization rate trends offer a general strategy for the design and synthesis of graft polymers with arbitrary architectures. Controlled copolymerization therefore expands the parameter space for molecular and materials design.
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Affiliation(s)
- Alice B Chang
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Tzu-Pin Lin
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Niklas B Thompson
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Shao-Xiong Luo
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Allegra L Liberman-Martin
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Hsiang-Yun Chen
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Byeongdu Lee
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Robert H Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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240
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Chmielarz P, Pacześniak T, Rydel-Ciszek K, Zaborniak I, Biedka P, Sobkowiak A. Synthesis of naturally-derived macromolecules through simplified electrochemically mediated ATRP. Beilstein J Org Chem 2017; 13:2466-2472. [PMID: 29234473 PMCID: PMC5704770 DOI: 10.3762/bjoc.13.243] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/25/2017] [Indexed: 11/23/2022] Open
Abstract
The flavonoid-based macroinitiator was received for the first time by the transesterification reaction of quercetin with 2-bromoisobutyryl bromide. In accordance with the "grafting from" strategy, a naturally-occurring star-like polymer with a polar 3,3',4',5,6-pentahydroxyflavone core and hydrophobic poly(tert-butyl acrylate) (PtBA) side arms was synthesized via a simplified electrochemically mediated ATRP (seATRP), utilizing only 78 ppm by weight (wt) of a catalytic CuII complex. To demonstrate the possibility of temporal control, seATRP was carried out utilizing a multiple-step potential electrolysis. The rate of the polymerizations was well-controlled by applying optimal potential values during preparative electrolysis to prevent the possibility of intermolecular coupling of the growing polymer arms. This appears to be the first report using on-demand seATRP for the synthesis of QC-(PtBA-Br)5pseudo-star polymers. The naturally-derived macromolecules showed narrow MWDs (Đ = 1.08-1.11). 1H NMR spectral results confirm the formation of quercetin-based polymers. These new flavonoid-based polymer materials may find applications as antifouling coatings and drug delivery systems.
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Affiliation(s)
- Paweł Chmielarz
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Tomasz Pacześniak
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Katarzyna Rydel-Ciszek
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Izabela Zaborniak
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Paulina Biedka
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Andrzej Sobkowiak
- Department of Physical Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland
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241
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Kumar R, Cao Y, Tsarevsky NV. Iodosylbenzene-Pseudohalide-Based Initiators for Radical Polymerization. J Org Chem 2017; 82:11806-11815. [PMID: 28972774 DOI: 10.1021/acs.joc.7b01945] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Iodosylbenzene reacts with various (pseudo)halides (trimethylsilyl azide or isocyanate or potassium azide, cyanate, and bromide) to yield unstable hypervalent iodine(III) compounds, PhIX2 (X = (pseudo)halide), that undergo rapid homolysis of the hypervalent I-X bonds and generate (pseudo)halide radicals, which can initiate the polymerization of styrene, (meth)acrylates, and vinyl esters. Polymers are formed containing (pseudo)halide functionalities at the α-chain end but, depending on the termination mechanism and the occurrence of transfer of (pseudo)halide groups from the initiator to the propagating radicals, also at the ω-chain end. With slowly polymerizing monomers (styrene and methyl methacrylate) and initiators that were generated rapidly at high concentrations and were especially unstable, the reactions proceeded via a "dead-end" polymerization mechanism, and only low to moderate monomer conversions were attained. When the initiator was generated more slowly and continuously throughout the polymerization (using the combination of iodosylbenzene with the poorly soluble potassium (pseudo)halide salts), typically higher conversions and higher molecular weights were reached. The presence of (pseudo)halide functionalities in the polymers was proved by elemental analysis, IR, and NMR spectroscopy. The azide-containing polymers underwent click-type coupling reactions with dialkynes, while the (iso)cyanate-containing polymers reacted with diamines to afford high-molecular-weight polymers with triazole- and urea-type interchain links, respectively.
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Affiliation(s)
- Rajesh Kumar
- Department of Chemistry, Southern Methodist University , 3215 Daniel Avenue, Dallas, Texas 75275, United States
| | - Yakun Cao
- Department of Chemistry, Southern Methodist University , 3215 Daniel Avenue, Dallas, Texas 75275, United States
| | - Nicolay V Tsarevsky
- Department of Chemistry, Southern Methodist University , 3215 Daniel Avenue, Dallas, Texas 75275, United States
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242
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Black JW, Kamenetska M, Ganim Z. An Optical Tweezers Platform for Single Molecule Force Spectroscopy in Organic Solvents. NANO LETTERS 2017; 17:6598-6605. [PMID: 28972764 DOI: 10.1021/acs.nanolett.7b02413] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Observation at the single molecule level has been a revolutionary tool for molecular biophysics and materials science, but single molecule studies of solution-phase chemistry are less widespread. In this work we develop an experimental platform for solution-phase single molecule force spectroscopy in organic solvents. This optical-tweezer-based platform was designed for broad chemical applicability and utilizes optically trapped core-shell microspheres, synthetic polymer tethers, and click chemistry linkages formed in situ. We have observed stable optical trapping of the core-shell microspheres in ten different solvents, and single molecule link formation in four different solvents. These experiments demonstrate how to use optical tweezers for single molecule force application in the study of solution-phase chemistry.
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Affiliation(s)
- Jacob W Black
- Department of Chemistry, Yale University , 350 Edwards St., New Haven, Connecticut 06520, United States
| | - Maria Kamenetska
- Department of Chemistry, Yale University , 350 Edwards St., New Haven, Connecticut 06520, United States
| | - Ziad Ganim
- Department of Chemistry, Yale University , 350 Edwards St., New Haven, Connecticut 06520, United States
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243
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Abdouni Y, Yilmaz G, Becer CR. Sequence Controlled Polymers from a Novel β-Cyclodextrin Core. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700501] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/05/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Yamin Abdouni
- School of Engineering and Materials Science; Queen Mary University of London; London E1 4NS UK
| | - Gökhan Yilmaz
- School of Engineering and Materials Science; Queen Mary University of London; London E1 4NS UK
| | - C. Remzi Becer
- School of Engineering and Materials Science; Queen Mary University of London; London E1 4NS UK
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244
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Steinschulte AA, Scotti A, Rahimi K, Nevskyi O, Oppermann A, Schneider S, Bochenek S, Schulte MF, Geisel K, Jansen F, Jung A, Mallmann S, Winter R, Richtering W, Wöll D, Schweins R, Warren NJ, Plamper FA. Stimulated Transitions of Directed Nonequilibrium Self-Assemblies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703495. [PMID: 29024083 DOI: 10.1002/adma.201703495] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/17/2017] [Indexed: 06/07/2023]
Abstract
Near-equilibrium stimulus-responsive polymers have been used extensively to introduce morphological variations in dependence of adaptable conditions. Far-less-well studied are triggered transformations at constant conditions. These require the involvement of metastable states, which are either able to approach the equilibrium state after deviation from metastability or can be frozen on returning from nonequilibrium to equilibrium. Such functional nonequilibrium macromolecular systems hold great promise for on-demand transformations, which result in substantial changes in their material properties, as seen for triggered gelations. Herein, a diblock copolymer system consisting of a hydrophilic block and a block that is responsive to both pressure and temperature, is introduced. This species demonstrates various micellar transformations upon leaving equilibrium/nonequilibrium states, which are triggered by a temperature deflection or a temporary application of hydrostatic pressure.
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Affiliation(s)
| | - Andrea Scotti
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Khosrow Rahimi
- DWI Leibniz Institute for Interactive Materials and Center for Chemical Polymer Technology (CPT), Forckenbeckstr. 50, D-52074, Aachen, Germany
| | - Oleksii Nevskyi
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Alex Oppermann
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Sabine Schneider
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Steffen Bochenek
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Marie F Schulte
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Karen Geisel
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Felicitas Jansen
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Andre Jung
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Sabrina Mallmann
- DWI Leibniz Institute for Interactive Materials and Center for Chemical Polymer Technology (CPT), Forckenbeckstr. 50, D-52074, Aachen, Germany
| | - Roland Winter
- Department of Chemistry and Chemical Biology, Physical Chemistry I, TU Dortmund University, Otto-Hahn Str. 6, D-44227, Dortmund, Germany
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Dominik Wöll
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
| | - Ralf Schweins
- Institut Laue-Langevin ILL, DS/LSS, 71 Avenue des Martyrs, F-38000, Grenoble, France
| | - Nicholas J Warren
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Felix A Plamper
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52056, Aachen, Germany
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245
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Pillarisetti S, Maya S, Sathianarayanan S, Jayakumar R. Tunable pH and redox-responsive drug release from curcumin conjugated γ-polyglutamic acid nanoparticles in cancer microenvironment. Colloids Surf B Biointerfaces 2017; 159:809-819. [DOI: 10.1016/j.colsurfb.2017.08.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/27/2017] [Accepted: 08/28/2017] [Indexed: 01/27/2023]
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246
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Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1354-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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247
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Steinkoenig J, Cecchini MM, Reale S, Goldmann AS, Barner-Kowollik C. Supercharging Synthetic Polymers: Mass Spectrometric Access to Nonpolar Synthetic Polymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jan Steinkoenig
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Eggenstein-Leopoldshafen, Germany
- Institut für Biologische
Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Martina M. Cecchini
- Dipartimento
di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, Coppito, 67100 L’Aquila, Italy
| | - Samantha Reale
- Dipartimento
di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, Coppito, 67100 L’Aquila, Italy
| | - Anja S. Goldmann
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Eggenstein-Leopoldshafen, Germany
- Institut für Biologische
Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., QLD
4000, Brisbane, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Eggenstein-Leopoldshafen, Germany
- Institut für Biologische
Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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248
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Ding A, Xu J, Gu G, Lu G, Huang X. PHEA-g-PMMA Well-Defined Graft Copolymer: ATRP Synthesis, Self-Assembly, and Synchronous Encapsulation of Both Hydrophobic and Hydrophilic Guest Molecules. Sci Rep 2017; 7:12601. [PMID: 28974694 PMCID: PMC5626726 DOI: 10.1038/s41598-017-12710-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/18/2017] [Indexed: 02/03/2023] Open
Abstract
A series of well-defined amphiphilic graft copolymer bearing a hydrophilic poly(2-hydroxyethyl acrylate) (PHEA) backbone and hydrophobic poly(methyl methacrylate) (PMMA) side chains was synthesized by successive reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) through the grafting-from strategy. A well-defined PHEA-based backbone with Cl-containing ATRP initiating group in every repeated unit (Mw/Mn = 1.08), poly(2-hydroxyethyl 2-((2-chloropropanoyloxy)methyl)acrylate) (PHECPMA), was first prepared by RAFT homopolymerization of 2-hydroxyethyl 2-((2-chloropropanoyloxy)methyl)acrylate (HECPMA), a Cl-containing trifunctional acrylate. ATRP of methyl methacrylate was subsequently initiated by PHECPMA homopolymer to afford the target well-defined poly(2-hydroxyethyl acrylate)-graft-poly(methyl methacrylate) (PHEA-g-PMMA) graft copolymers (Mw/Mn ≤ 1.36) with 34 PMMA side chains and 34 pendant hydroxyls in PHEA backbone using CuCl/dHbpy as catalytic system. The critical micelle concentration (cmc) of the obtained graft copolymer was determined by fluorescence spectroscopy using N-phenyl-1-naphthylamine as probe while micellar morphologies in aqueous media were visualized by transmission electron microscopy. Interestingly, PHEA-g-PMMA graft copolymer could self-assemble into large compound micelles rather than common spherical micelles, which can encapsulate hydrophilic rhodamine 6 G and hydrophobic pyrene separately or simultaneously.
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Affiliation(s)
- Aishun Ding
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China.,Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Jie Xu
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China
| | - Guangxin Gu
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China.
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China.
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249
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Howe DH, McDaniel RM, Magenau AJD. From Click Chemistry to Cross-Coupling: Designer Polymers from One Efficient Reaction. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02041] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- David H. Howe
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Riki M. McDaniel
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Andrew J. D. Magenau
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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250
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Ahlers P, Fischer K, Spitzer D, Besenius P. Dynamic Light Scattering Investigation of the Kinetics and Fidelity of Supramolecular Copolymerizations in Water. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01561] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Patrick Ahlers
- Institute
of Organic Chemistry and ‡Institute of Physical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Karl Fischer
- Institute
of Organic Chemistry and ‡Institute of Physical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Daniel Spitzer
- Institute
of Organic Chemistry and ‡Institute of Physical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Pol Besenius
- Institute
of Organic Chemistry and ‡Institute of Physical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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