1
|
Marcelo G, Burns F, Ribeiro T, Martinho JMG, Tarazona MP, Saiz E, Moffitt MG, Farinha JPS. Versatile Tetrablock Copolymer Scaffold for Hierarchical Colloidal Nanoparticle Assemblies: Synthesis, Characterization, and Molecular Dynamics Simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8201-8212. [PMID: 28735537 DOI: 10.1021/acs.langmuir.7b01687] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A unique combination of molecular dynamics (MD) simulation and detailed size exclusion chromatography-multiangle light scattering (SEC-MALS) analysis is used to provide important a priori insights into the solution self-assembly of a well-defined and symmetric tetrablock copolymer with two acrylic acid (AA) outer blocks, two polystyrene (PS) inner blocks, and a trithiocarbonate (TTC) central group, prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization. SEC-MALS experiments show that the copolymer forms aggregates in both tetrahydrofuran and N,N-dimethylformamide (DMF), even in the presence of different salts, but not in 1,4-dioxane (dioxane). Combined with MD simulations, these results indicate that the AA units are the main cause of aggregation through intermolecular hydrogen bonding, with additional stabilization by the central TTC. The block copolymer chains self-assemble in dioxane by adding cadmium acetate, originating flowerlike inverse micelles with a cadmium acrylate core and the TTC groups in the outer surface of the PS corona. The micelles were used as nanoreactors in the templated synthesis of a single cadmium selenide (CdSe) quantum dot (QD) in the core of each micelle, whereas the shell TTC groups can be converted into thiol functions for further use of these units in hierarchical nanostructures. Only in dioxane where simulations and SEC-MALS suggest an absence of copolymer aggregates prior to cadmium acetate addition do well-dispersed and highly luminescent CdSe QDs form by templated synthesis. These results provide valuable insights into the self-assembly of RAFT copolymers in different solvent systems as it relates to the preparation of emissive QDs with polymer-spaced thiol functionality for binding to gold nanostructures.
Collapse
Affiliation(s)
- Gema Marcelo
- Centro de Química-Física Molecular and IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon , 1049-001 Lisboa, Portugal
| | - Fraser Burns
- Department of Chemistry, University of Victoria , P.O. Box 1700, Stn CSC, Victoria V8W 3V6, British Columbia, Canada
| | - Tânia Ribeiro
- Centro de Química-Física Molecular and IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon , 1049-001 Lisboa, Portugal
| | - J M G Martinho
- Centro de Química-Física Molecular and IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon , 1049-001 Lisboa, Portugal
| | - M Pilar Tarazona
- Departamento de Química Física, Universidad de Alcalá , 28871 Alcalá de Henares, Madrid, Spain
| | - Enrique Saiz
- Departamento de Química Física, Universidad de Alcalá , 28871 Alcalá de Henares, Madrid, Spain
| | - Matthew G Moffitt
- Department of Chemistry, University of Victoria , P.O. Box 1700, Stn CSC, Victoria V8W 3V6, British Columbia, Canada
| | - José Paulo S Farinha
- Centro de Química-Física Molecular and IN-Institute for Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon , 1049-001 Lisboa, Portugal
| |
Collapse
|
2
|
Physicochemical study by multi-angle light scattering of water-soluble methacryloylaminophenylarsonate copolymers. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0492-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
3
|
Okuhara T, Hashidzume A, Terao K, Sato T. Aggregation and phase separation of hydrophilically modified poly(dimethylsiloxane) in methanol–water mixtures. Polym J 2014. [DOI: 10.1038/pj.2014.3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
4
|
Peña-Bahamonde J, Atencia JJ, Pozuelo J, Tarazona MP, Mendicuti F. New Insights on the Self-Organization of PEG/α-Cyclodextrin-Based Polyrotaxanes in Solution: An Experimental and Theoretical Study. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Janire Peña-Bahamonde
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
| | - José Joaquín Atencia
- Dpto. de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB); Universidad Carlos III de Madrid; Leganés Spain
| | - Javier Pozuelo
- Dpto. de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB); Universidad Carlos III de Madrid; Leganés Spain
| | - María Pilar Tarazona
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
| | - Francisco Mendicuti
- Dpto. de Química Analítica; Química Física e Ingeniería Química; Universidad de Alcalá; 28871 Alcalá de Henares Spain
| |
Collapse
|
5
|
Duchoslavová Z, Sivkova R, Hanková V, Sedláček J, Svoboda J, Vohlídal J, Zedník J. Synthesis and Spectral Properties of Novel Poly(disubstituted acetylene)s. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100160] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
6
|
Ingratta M, Jutemar EP, Jannasch P. Synthesis, Nanostructures and Properties of Sulfonated Poly(phenylene oxide) Bearing Polyfluorostyrene Side Chains as Proton Conducting Membranes. Macromolecules 2011. [DOI: 10.1021/ma102879w] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Mark Ingratta
- Department of Chemistry, Polymer & Materials Chemistry, Lund University, POB 124, SE-22100, Lund Sweden
| | - Elin Persson Jutemar
- Department of Chemistry, Polymer & Materials Chemistry, Lund University, POB 124, SE-22100, Lund Sweden
| | - Patric Jannasch
- Department of Chemistry, Polymer & Materials Chemistry, Lund University, POB 124, SE-22100, Lund Sweden
| |
Collapse
|
7
|
Marcelo G, Saiz E, Tarazona MP. Contribution of Size Exclusion Chromatography, Light Scattering, Viscometry, and Conductimetry to the Study of Solution and Gel Properties of a Cationic Polyelectrolyte. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802548564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Gema Marcelo
- a Departamento de Química Física , Universidad de Alcalá , Madrid, Spain
| | - Enrique Saiz
- a Departamento de Química Física , Universidad de Alcalá , Madrid, Spain
| | - M. Pilar Tarazona
- a Departamento de Química Física , Universidad de Alcalá , Madrid, Spain
| |
Collapse
|
8
|
Zhou D, Zhu X, Zhu J, Cheng Z. Synthesis and characterization of fluorescence end-labeled polystyrene via reversible addition-fragmentation chain transfer (RAFT) polymerization. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22930] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|