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Xiang L, Zhong Z, Shang M, Su Y. Microflow synthesis of stimuli-responsive star polymers and its application on catalytic reduction. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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2
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3
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Vrijsen JH, Van de Reydt E, Junkers T. Tunable thermoresponsive β‐cyclodextrin‐based star polymers. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | - Emma Van de Reydt
- Polymer Reaction Design Group, School of Chemistry Monash University Clayton Victoria Australia
| | - Tanja Junkers
- Universiteit Hasselt, Institute for Materials Research Hasselt Belgium
- Polymer Reaction Design Group, School of Chemistry Monash University Clayton Victoria Australia
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4
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Antoniv M, Chang S, Al‐Jabri N, Zhu SS. Surfactant‐free synthesis of poly (styrene‐
co
‐acrylamide) monodisperse nanoparticles using hybrid flow‐to‐batch chemistry. J Appl Polym Sci 2020. [DOI: 10.1002/app.49905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Marta Antoniv
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | - Sehoon Chang
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | | | - S. Sherry Zhu
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
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Harrier DD, Kenis PJA, Guironnet D. Ring-Opening Polymerization of Cyclic Esters in an Aqueous Dispersion. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Danielle D. Harrier
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Paul J. A. Kenis
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana—Champaign, Urbana, Illinois 61801, United States
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Zaborniak I, Chmielarz P. Miniemulsion switchable electrolysis under constant current conditions. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Izabela Zaborniak
- Department of Physical Chemistry Rzeszow University of Technology Rzeszów Poland
| | - Paweł Chmielarz
- Department of Physical Chemistry Rzeszow University of Technology Rzeszów Poland
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7
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Zaquen N, Rubens M, Corrigan N, Xu J, Zetterlund PB, Boyer C, Junkers T. Polymer Synthesis in Continuous Flow Reactors. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101256] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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8
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Surface Functionalization of Magnetic Nanoparticles Using a Thiol-Based Grafting-Through Approach. SURFACES 2020. [DOI: 10.3390/surfaces3010011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Here we describe a simple and straightforward synthesis of different multifunctional magnetic nanoparticles by using surface bound thiol-groups as transfer agents in a free radical polymerization process. The modification includes a first step of surface silanization with (3-mercaptopropyl)trimethoxysilane to obtain thiol-modified nanoparticles, which are further used as a platform for modification with a broad variety of polymers. The silanization was optimized in terms of shell thickness and particle size distribution, and the obtained materials were investigated by dynamic light scattering (DLS), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). Subsequently, the free radical polymerization of different monomers (tert-butyl acrylate (tBA), methyl methacrylate (MMA), styrene, 2-vinyl pyridine (2VP), and N-isopropylacrylamide (NIPAAm)) was examined in the presence of the thiol-modified nanoparticles. During the process, a covalently anchored polymeric shell was formed and the resulting core–shell hybrid materials were analyzed in terms of size (DLS, TEM), shell thickness (TGA, TEM), and the presence of functional groups (attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FT-IR)). Hereby, the shell leads to a different solution behavior of the particles and in some cases an increased stability towards acids. Moreover, we examined the influence of the nanoparticle concentration during polymerization and we found a significant influence on dispersity of the resulting polymers. Finally, we compared the characteristics of the surface bound polymer and polymer formed in solution for the case of polystyrene. The herein presented approach provides straightforward access to a wide range of core–shell nanocomposites.
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Wetzel R, Eckardt O, Biehl P, Brauer DS, Schacher FH. Effect of poly(acrylic acid) architecture on setting and mechanical properties of glass ionomer cements. Dent Mater 2020; 36:377-386. [PMID: 31992486 DOI: 10.1016/j.dental.2020.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 12/24/2019] [Accepted: 01/09/2020] [Indexed: 01/20/2023]
Abstract
OBJECTIVE This work focuses on the influence of poly(acrylic acid) (PAA) architecture (linear or branched) on setting behavior and compressive strength of glass ionomer cements (GICs). METHODS Branched and linear poly(acrylic acid)s were synthesized according to the Strathclyde methodology or by free radical polymerization. They were characterized by 1H-NMR spectroscopy and size exclusion chromatography to determine their molecular weight and size distribution. GIC setting was characterized by oscillating rheometry and time-dependent FTIR spectroscopy. In addition, compressive strength was tested on cylindrical samples (6 × 4 mm; n = 8/cement composition) after storage in deionized water at 37 °C for one day. RESULTS We used two different routes to prepare PAA. One direct route in order to provide straightforward access to branched PAA and a two-step approach in order to get more control about the PAA molecular weight using tert-butyl acrylate (tBA) for polymerization with subsequent deprotection. Using the second approach we obtained several linear PAA of which a mixture was used in order to mimic the molecular weight and size distribution of branched PAA. This allowed the direct comparison of properties relying only on the polymer architecture. Comparing linear PAA to branched samples in general led to faster setting but at the same time decreased the compressive strength. Increasing molecular weight of branched PAA resulted in even faster GIC setting while increasing compressive strength and this correlates well with the trends reported for linear PAA in literature. Mixing of branched and linear PAA, however, turned out to be an effective way of tailoring GIC properties. SIGNIFICANCE our results suggest that both molecular weight and dispersity need to be considered when choosing suitable PAA architecture for obtaining specific GIC properties.
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Affiliation(s)
- R Wetzel
- Otto Schott Institute of Materials Research, Friedrich Schiller University, Fraunhoferstr. 6, 07743 Jena, Germany
| | - O Eckardt
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, D 07443 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, D-07743 Jena, Germany
| | - P Biehl
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, D 07443 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, D-07743 Jena, Germany
| | - D S Brauer
- Otto Schott Institute of Materials Research, Friedrich Schiller University, Fraunhoferstr. 6, 07743 Jena, Germany.
| | - F H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, D 07443 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, D-07743 Jena, Germany.
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10
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Liu Y, Zhu N, Hu X, Huang W, Wu J, Bin X, Qiu J, Duan J, Fang Z, Guo K. Continuous flow rare earth phenolates catalyzed chemoselective ring-opening polymerization. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Hou L, Dueñas-Díez M, Srivastava R, Pérez-Mercader J. Flow chemistry controls self-assembly and cargo in Belousov-Zhabotinsky driven polymerization-induced self-assembly. Commun Chem 2019. [DOI: 10.1038/s42004-019-0241-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AbstractAmphiphilic block-copolymer vesicles are increasingly used for medical and chemical applications, and a novel method for their transient self-assembly orchestrated by periodically generated radicals during the oscillatory Belousov-Zhabotinsky (BZ) reaction was recently developed. Here we report how combining this one pot polymerization-induced self-assembly (PISA) method with a continuously stirred tank reactor (CSTR) strategy allows for continuous and reproducible control of both the PISA process and the chemical features (e.g. the radical generation and oscillation) of the entrapped cargo. By appropriately tuning the residence time (τ), target degree of polymerization (DP) and the BZ reactants, intermediate self-assembly structures are also obtained (micelles, worms and nano-sized vesicles). Simultaneously, the chemical properties of the cargo at encapsulation are known and tunable, a key advantage over batch operation. Finally, we also show that BZ-driven polymerization in CSTR additionally supports more non-periodic dynamics such as bursting.
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12
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Xiang L, Song Y, Qiu M, Su Y. Synthesis of Branched Poly(butyl acrylate) Using the Strathclyde Method in Continuous-Flow Microreactors. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03906] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Eckardt O, Seupel S, Festag G, Gottschaldt M, Schacher FH. Synthesis and degradation of branched, photo-labile poly(acrylic acid) and polystyrene. Polym Chem 2019. [DOI: 10.1039/c8py01597j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the synthesis, characterization and photolytical degradation of branched photo-responsive poly(acrylic acid) and polystyrene using free radical polymerization of acrylic acid/styrene in the presence of a newly synthesized asymmetric o-nitrobenzyl-based crosslinker and different amounts of dodecanethiol (DDT) as a chain transfer agent.
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Affiliation(s)
- O. Eckardt
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- D-07443 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - S. Seupel
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- D-07443 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - G. Festag
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- D-07443 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - M. Gottschaldt
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- D-07443 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - F. H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- D-07443 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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Vrijsen JH, Osiro Medeiros C, Gruber J, Junkers T. Continuous flow synthesis of core cross-linked star polymers via photo-induced copper mediated polymerization. Polym Chem 2019. [DOI: 10.1039/c9py00134d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A convenient method to synthesize core cross-linked star polymers via a continuous flow photopolymerization process is developed.
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Affiliation(s)
- Jeroen H. Vrijsen
- Institute for Materials Research (IMO)
- Hasselt University
- 3500 Hasselt
- Belgium
| | - Camila Osiro Medeiros
- Institute for Materials Research (IMO)
- Hasselt University
- 3500 Hasselt
- Belgium
- Departamento de Engenharia Química
| | - Jonas Gruber
- Departamento de Química Fundamental
- Instituto de Químca da Universidade de São Paulo
- CEP 05508-000 São Paulo
- Brazil
| | - Tanja Junkers
- Institute for Materials Research (IMO)
- Hasselt University
- 3500 Hasselt
- Belgium
- Polymer Reaction Design Group
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Continuous-Flow Microreactors for Polymer Synthesis: Engineering Principles and Applications. Top Curr Chem (Cham) 2018; 376:44. [DOI: 10.1007/s41061-018-0224-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 10/28/2018] [Indexed: 12/16/2022]
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Song Y, Shang M, Zhang H, Xu W, Pu X, Lu Q, Su Y. Process Characteristics and Rheological Properties of Free Radical Polymerization in Microreactors. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yang Song
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Minjing Shang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hong Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wenhua Xu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xin Pu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Qinghua Lu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuanhai Su
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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Zhu N, Hu X, Fang Z, Guo K. Continuous Flow Photoinduced Reversible Deactivation Radical Polymerization. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Xin Hu
- College of Materials Science and Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211800 China
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