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György C, Derry MJ, Cornel EJ, Armes SP. Synthesis of Highly Transparent Diblock Copolymer Vesicles via RAFT Dispersion Polymerization of 2,2,2-Trifluoroethyl Methacrylate in n-Alkanes. Macromolecules 2021; 54:1159-1169. [PMID: 33583957 PMCID: PMC7879428 DOI: 10.1021/acs.macromol.0c02646] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/06/2021] [Indexed: 01/28/2023]
Abstract
RAFT dispersion polymerization of 2,2,2-trifluoroethyl methacrylate (TFEMA) is performed in n-dodecane at 90 °C using a relatively short poly(stearyl methacrylate) (PSMA) precursor and 2-cyano-2-propyl dithiobenzoate (CPDB). The growing insoluble poly(2,2,2-trifluoroethyl methacrylate) (PTFEMA) block results in the formation of PSMA-PTFEMA diblock copolymer nano-objects via polymerization-induced self-assembly (PISA). GPC analysis indicated narrow molecular weight distributions (M w/M n ≤ 1.34) for all copolymers, with 19F NMR studies indicating high TFEMA conversions (≥95%) for all syntheses. A pseudo-phase diagram was constructed to enable reproducible targeting of pure spheres, worms, or vesicles by varying the target degree of polymerization of the PTFEMA block at 15-25% w/w solids. Nano-objects were characterized using dynamic light scattering, transmission electron microscopy, and small-angle X-ray scattering. Importantly, the near-identical refractive indices for PTFEMA (1.418) and n-dodecane (1.421) enable the first example of highly transparent vesicles to be prepared. The turbidity of such dispersions was examined between 20 and 90 °C. The highest transmittance (97% at 600 nm) was observed for PSMA9-PTFEMA294 vesicles (237 ± 24 nm diameter; prepared at 25% w/w solids) in n-dodecane at 20 °C. Interestingly, targeting the same diblock composition in n-hexadecane produced a vesicle dispersion with minimal turbidity at a synthesis temperature of 90 °C. This solvent enabled in situ visible absorption spectra to be recorded during the synthesis of PSMA16-PTFEMA86 spheres at 15% w/w solids, which allowed the relatively weak n→π* band at 515 nm assigned to the dithiobenzoate chain-ends to be monitored. Unfortunately, the premature loss of this RAFT chain-end occurred during the RAFT dispersion polymerization of TFEMA at 90 °C, so meaningful kinetic data could not be obtained. Furthermore, the dithiobenzoate chain-ends exhibited a λmax shift of 8 nm relative to that of the dithiobenzoate-capped PSMA9 precursor. This solvatochromatic effect suggests that the problem of thermally labile dithiobenzoate chain-ends cannot be addressed by performing the TFEMA polymerization at lower temperatures.
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Affiliation(s)
- Csilla György
- Dainton Building, Department
of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
| | | | | | - Steven P. Armes
- Dainton Building, Department
of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
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Phimphachanh A, Chamieh J, Leclercq L, Harrisson S, Destarac M, Lacroix-Desmazes P, Gérardin C, In M, Cottet H. Characterization of Diblock Copolymers by Capillary Electrophoresis: From Electrophoretic Mobility Distribution to Distribution of Composition. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01978] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anthony Phimphachanh
- L2C, Univ Montpellier, CNRS, Montpellier, France
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Joseph Chamieh
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - Simon Harrisson
- IMRCP, University of Toulouse, CNRS UMR5623, Toulouse, France
| | | | | | | | - Martin In
- L2C, Univ Montpellier, CNRS, Montpellier, France
| | - Hervé Cottet
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
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4
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Moad G. A Critical Assessment of the Kinetics and Mechanism of Initiation of Radical Polymerization with Commercially Available Dialkyldiazene Initiators. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.08.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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5
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Duffy C, Phelan M, Zetterlund PB, Aldabbagh F. Reversible addition-fragmentation chain transfer polymerization of alkyl-2-cyanoacrylates: An assessment of livingness. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28509] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cormac Duffy
- School of Chemistry; National University of Ireland Galway; Galway Ireland
- Henkel Ireland Operations & Research Limited; Whitestown Dublin 24 Ireland
| | - Marisa Phelan
- Henkel Ireland Operations & Research Limited; Whitestown Dublin 24 Ireland
| | - Per B. Zetterlund
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales; Sydney NSW 2052 Australia
| | - Fawaz Aldabbagh
- School of Chemistry; National University of Ireland Galway; Galway Ireland
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6
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Affiliation(s)
- Maciej Kopeć
- Center for Macromolecular
Engineering, Department of Chemistry, Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Pawel Krys
- Center for Macromolecular
Engineering, Department of Chemistry, Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Rui Yuan
- Center for Macromolecular
Engineering, Department of Chemistry, Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Center for Macromolecular
Engineering, Department of Chemistry, Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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Zhu Y, Bi S, Gao X, Luo Y. Comparison of RAFTAb InitioEmulsion Polymerization of Methyl Methacrylate and Styrene Mediated by Oligo(methacrylic acid-b-methyl methacrylate) Trithiocarbonate Surfactant. MACROMOL REACT ENG 2015. [DOI: 10.1002/mren.201400058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yue Zhu
- The State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Shangyu Bi
- The State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Xiang Gao
- The State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yingwu Luo
- The State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
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8
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Sutton AT, Read E, Maniego AR, Thevarajah JJ, Marty JD, Destarac M, Gaborieau M, Castignolles P. Purity of double hydrophilic block copolymers revealed by capillary electrophoresis in the critical conditions. J Chromatogr A 2014; 1372C:187-195. [DOI: 10.1016/j.chroma.2014.10.105] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 10/28/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
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9
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Visnevskij C, Ciuta G, Ketleriute S, Savickaite M, Makuska R. ISARA ATRP of methacrylic acid neutralized by simple amines yielding linear polymers and anionic molecular brushes. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.03.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Krivorotova T, Jonikaite-Svegzdiene J, Radzevicius P, Makuska R. Synthesis by RAFT polymerization and properties of anionic cylindrical molecular brushes bearing poly(acrylic acid) side chains. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Moad G. Mechanism and Kinetics of Dithiobenzoate-Mediated RAFT Polymerization - Status of the Dilemma. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300562] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Graeme Moad
- CSIRO Materials Science and Engineering; Bag 10 Clayton South VIC 3169 Australia
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12
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Yoshida E. Nitroxide-Mediated Photo-Controlled/Living Radical Polymerization of Methacrylic Acid. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojpchem.2013.31004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Cash BM, Wang L, Benicewicz BC. The preparation and characterization of carboxylic acid-coated silica nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26029] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Enríquez-Medrano FJ, Hernández-Valdez M, Maldonado-Textle H, Lacroix-Desmazes P, Guerrero-Santos R. Super impact strength of blends prepared from regular HIPS and poly(butyl acrylate)- block
-poly(styrene) obtained by RAFT polymerization. POLYM ADVAN TECHNOL 2012. [DOI: 10.1002/pat.1884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chaduc I, Lansalot M, D’Agosto F, Charleux B. RAFT Polymerization of Methacrylic Acid in Water. Macromolecules 2012. [DOI: 10.1021/ma2023815] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isabelle Chaduc
- Laboratoire de Chimie Catalyse Polymères
et
Procédés (C2P2), Université de Lyon 1, CPE Lyon, CNRS UMR 5265, Equipe LCPP Bat 308F, 43
Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Muriel Lansalot
- Laboratoire de Chimie Catalyse Polymères
et
Procédés (C2P2), Université de Lyon 1, CPE Lyon, CNRS UMR 5265, Equipe LCPP Bat 308F, 43
Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Franck D’Agosto
- Laboratoire de Chimie Catalyse Polymères
et
Procédés (C2P2), Université de Lyon 1, CPE Lyon, CNRS UMR 5265, Equipe LCPP Bat 308F, 43
Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Bernadette Charleux
- Laboratoire de Chimie Catalyse Polymères
et
Procédés (C2P2), Université de Lyon 1, CPE Lyon, CNRS UMR 5265, Equipe LCPP Bat 308F, 43
Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
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Delaittre G, Save M, Gaborieau M, Castignolles P, Rieger J, Charleux B. Synthesis by nitroxide-mediated aqueous dispersion polymerization, characterization, and physical core-crosslinking of pH- and thermoresponsive dynamic diblock copolymer micelles. Polym Chem 2012. [DOI: 10.1039/c2py20084h] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Konkolewicz D, de Bruyn H, Hawkett BS. Effect of Stabilizer Functionality on the Kinetics of Emulsion Polymerization in Hairy Particles. Macromolecules 2011. [DOI: 10.1021/ma2018606] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dominik Konkolewicz
- Key Centre for Polymers & Colloids, School of Chemistry, The University of Sydney, NSW 2006, Australia
| | - Hank de Bruyn
- School of Chemistry, The University of Sydney, NSW 2006, Australia
| | - Brian S. Hawkett
- Key Centre for Polymers & Colloids, School of Chemistry, The University of Sydney, NSW 2006, Australia
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Zhou Y, He J, Li C, Hong L, Yang Y. Dependence of Thermal Stability on Molecular Structure of RAFT/MADIX Agents: A Kinetic and Mechanistic Study. Macromolecules 2011. [DOI: 10.1021/ma201570f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yanwu Zhou
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Junpo He
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Changxi Li
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Linxiang Hong
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yuliang Yang
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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Low Molecular Weight pDMAEMA-block-pHEMA Block-Copolymers Synthesized via RAFT-Polymerization: Potential Non-Viral Gene Delivery Agents? Polymers (Basel) 2011. [DOI: 10.3390/polym3020693] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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20
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Castignolles P, Gaborieau M. Viscosimetric detection in size-exclusion chromatography (SEC/GPC): The Goldwasser method and beyond. J Sep Sci 2011; 33:3564-70. [PMID: 20972971 DOI: 10.1002/jssc.201000511] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Size-exclusion chromatography (SEC or GPC) is the most widely used separation method to characterize polymers. The high level of complexity of most polymeric materials necessitates the use of not only concentration-sensitive detection but also structure-sensitive detection. Viscometry is usually used in conjunction with a concentration-sensitive detector and universal calibration to determine molecular weights of polymers. Goldwasser proposed to use a viscometer as a single detector to determine number-average molecular weights, M(n) (ACS Symposium Series, 521, 143). The method is particularly of interest when concentration-sensitive detection is not available, because the sample is isorefractive or not UV-absorbing, or because composition is not constant (copolymers). It has known very little applications so far. It actually does not only allow determining M(n), but also the number hydrodynamic volume distribution. This opens a wider range of applications for the Goldwasser method. Size-exclusion chromatography only yields inaccurate molecular weight distributions for some complex branched polymers. Hydrodynamic volume distributions have then a strong potential for comparative studies owing to their far higher accuracy. Our experimental tests highlight the fact that the method is highly sensitive to noise and careful optimization of the injection concentration is needed, but number distribution can be obtained as well as M(n).
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Affiliation(s)
- Patrice Castignolles
- School of Natural Sciences, Australian Centre for Research on Separation Science (ACROSS), University of Western Sydney, Australia.
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21
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Li C, He J, Zhou Y, Gu Y, Yang Y. Radical-induced oxidation of RAFT agents-A kinetic study. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24554] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Affiliation(s)
- Steffen M. Weidner
- Federal Institute for Materials Research and Testing (BAM), D-12489 Berlin, Richard-Willstaetter-Strasse 11, Germany, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, 33 Chemistry, Detroit, Michigan 48202
| | - Sarah Trimpin
- Federal Institute for Materials Research and Testing (BAM), D-12489 Berlin, Richard-Willstaetter-Strasse 11, Germany, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, 33 Chemistry, Detroit, Michigan 48202
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Guillaneuf Y, Bertin D, Gigmes D, Versace DL, Lalevée J, Fouassier JP. Toward Nitroxide-Mediated Photopolymerization. Macromolecules 2010. [DOI: 10.1021/ma902774s] [Citation(s) in RCA: 160] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yohann Guillaneuf
- UMR 6264 Laboratoire Chimie Provence, Université de Provence, Avenue Escadrille Normandie-Niemen, Case 542, Marseille 13397, Cedex 20, France
| | - Denis Bertin
- UMR 6264 Laboratoire Chimie Provence, Université de Provence, Avenue Escadrille Normandie-Niemen, Case 542, Marseille 13397, Cedex 20, France
| | - Didier Gigmes
- UMR 6264 Laboratoire Chimie Provence, Université de Provence, Avenue Escadrille Normandie-Niemen, Case 542, Marseille 13397, Cedex 20, France
| | - Davy-Louis Versace
- Département de Photochimie Générale, CNRS, Université de Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse -ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse Cedex, France
| | - Jacques Lalevée
- Département de Photochimie Générale, CNRS, Université de Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse -ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse Cedex, France
| | - Jean-Pierre Fouassier
- Département de Photochimie Générale, CNRS, Université de Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse -ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse Cedex, France
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Gaborieau M, Causon TJ, Guillaneuf Y, Hilder EF, Castignolles P. Molecular Weight and Tacticity of Oligoacrylates by Capillary Electrophoresis - Mass Spectrometry. Aust J Chem 2010. [DOI: 10.1071/ch10088] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Oligo(acrylic acid) efficiently stabilizes polymeric particles, especially particles produced by reversible addition–fragmentation chain transfer (RAFT) (as hydrophilic block of an amphiphilic copolymer). Capillary electrophoresis (CE) has a far higher resolution power to separate these oligomers than the commonly used size exclusion chromatography. Coupling CE to electrospray ionization mass spectrometric detection unravels the separation mechanism. CE separates these oligomers, not only according to their degree of polymerization, but also according to their tacticity, in agreement with NMR analysis. Such analysis will provide insight into the role of these oligomers as stabilizers in emulsion polymerization, and into the mechanism of the RAFT polymerization with respect to degree of polymerization and tacticity.
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Castignolles P. Transfer to Polymer and Long-Chain Branching in PLP-SEC of Acrylates. Macromol Rapid Commun 2009; 30:1995-2001. [PMID: 21638488 DOI: 10.1002/marc.200900530] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Revised: 09/21/2009] [Indexed: 11/08/2022]
Abstract
Pulsed laser polymerization (PLP) combined with size exclusion chromatography (SEC) is the method of choice for determining propagation rate coefficients. The influence of the long-chain branching in PLP-SEC is investigated using multiple-detection SEC and a recently developed method to detect long-chain branching [P. Castignolles, R. Grab, M. Parkinson, M. Wilhelm, M. Gaborieau, Polymer 2009, 50, 2373.] While little or no long-chain branching is detected in poly(n-butyl acrylate), the error in relevant molecular weights of poly(2-ethylhexyl acrylate) is large (30-100%) due to long-chain branching. Possible variations of propagation rate coefficient with alkyl groups in alkyl acrylates or with the solvent have to be reconsidered.
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Affiliation(s)
- Patrice Castignolles
- University of Mainz, Institute of Physical Chemistry, Jakob-Welder Weg 11, 55 099 Mainz, Germany.
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Bar-Nes G, Hall R, Sharma V, Gaborieau M, Lucas D, Castignolles P, Gilbert RG. Controlled/living radical polymerization of isoprene and butadiene in emulsion. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.08.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Detection and quantification of branching in polyacrylates by size-exclusion chromatography (SEC) and melt-state 13C NMR spectroscopy. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.03.021] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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David G, Asri ZE, Rich S, Castignolles P, Guillaneuf Y, Lacroix-Desmazes P, Boutevin B. Peculiar Behavior of Degenerative Chain Transfer Polymerization of a Phosphonated Methacrylate. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200800540] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Pelet JM, Putnam D. High Molecular Weight Poly(methacrylic acid) with Narrow Polydispersity by RAFT Polymerization. Macromolecules 2009. [DOI: 10.1021/ma801433g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeisa M. Pelet
- School of Chemical and Biomolecular Engineering and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853
| | - David Putnam
- School of Chemical and Biomolecular Engineering and Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853
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30
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Gaborieau M, Nicolas J, Save M, Charleux B, Vairon JP, Gilbert RG, Castignolles P. Separation of complex branched polymers by size-exclusion chromatography probed with multiple detection. J Chromatogr A 2008; 1190:215-23. [DOI: 10.1016/j.chroma.2008.03.031] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2007] [Revised: 02/29/2008] [Accepted: 03/06/2008] [Indexed: 11/29/2022]
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