1
|
Buglakov AI, Larin DE, Vasilevskaya VV. Orientation- and cosolvent-induced self-assembly of amphiphilic homopolymers in selective solvents. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124160] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
2
|
Thankappan H, Semsarilar M, Li S, Chang Y, Bouyer D, Quemener D. Synthesis of Block Copolymer Brush by RAFT and Click Chemistry and Its Self-Assembly as a Thin Film. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25204774. [PMID: 33080832 PMCID: PMC7587578 DOI: 10.3390/molecules25204774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/16/2022]
Abstract
A well-defined block copolymer brush poly(glycidyl methacrylate)-graft-(poly(methyl methacrylate)-block- poly(oligo(ethylene glycol) methyl ether methacrylate)) (PGMA-g-(PMMA-b-POEGMA)) is synthesized via grafting from an approach based on a combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization. The resulting block copolymer brushes were characterized by 1H-NMR and size exclusion chromatography (SEC). The self-assembly of the block copolymer brush was then investigated under selective solvent conditions in three systems: THF/water, THF/CH3OH, and DMSO/CHCl3. PGMA-g-(PMMA-b-POEGMA) was found to self-assemble into spherical micelle structures as analyzed by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The average size of the particles was much smaller in THF/CH3OH and DMSO/CHCl3 as compared with the THF/water system. Thin film of block copolymer brushes with tunable surface properties was then prepared by the spin-coating technique. The thickness of the thin film was confirmed by scanning electron microscopy (SEM). Atom force microscopy (AFM) analysis revealed a spherical morphology when the block copolymer brush was treated with poor solvents for the backbone and hydrophobic side chains. The contact angle measurements were used to confirm the surface rearrangements of the block copolymer brushes.
Collapse
Affiliation(s)
- Hajeeth Thankappan
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Mona Semsarilar
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Suming Li
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Yung Chang
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200, Chung-Bei Rd., Chungli, Taoyuan, 320, Taiwan;
| | - Denis Bouyer
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Damien Quemener
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
- Correspondence:
| |
Collapse
|
3
|
Kim N, Li X, Kim SH, Kim J. Colloidally stable organic–inorganic hybrid nanoparticles prepared using alkoxysilane-functionalized amphiphilic polymer precursors and mechanical properties of their cured coating film. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
4
|
Baek P, Mata JP, Sokolova A, Nelson A, Aydemir N, Shahlori R, McGillivray DJ, Barker D, Travas-Sejdic J. Chain shape and thin film behaviour of poly(thiophene)-graft-poly(acrylate urethane). SOFT MATTER 2018; 14:6875-6882. [PMID: 30083686 DOI: 10.1039/c8sm00777b] [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
Electronic graft copolymers with conjugated polymer backbones are emerging as promising materials for various organic electronics. These materials combine the advantages of organic electronic materials, such as molecular tunability of opto-electronic and electrochemical properties, with solution processability and other 'designer' physical and mechanical properties imparted through the addition of grafted polymer side chains. Future development of such materials with complex molecular architecture requires a better understanding of the effect of molecular parameters, such as side chain length, on the structure and, in turn, on the electronic properties. In this study, poly(thiophene)-graft-poly(acrylate urethane) (PTh-g-PAU) was examined as a model system and we investigate the effect of side chain length on the overall shape and size in solution. Furthermore, the changes in the swelling behaviour of the graft copolymer thin films help in understanding their electrochemical redox properties.
Collapse
Affiliation(s)
- Paul Baek
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand. and The MacDiarmid Institute of Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Jitendra P Mata
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, NSW 2234, Australia
| | - Anna Sokolova
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, NSW 2234, Australia
| | - Andrew Nelson
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, NSW 2234, Australia
| | - Nihan Aydemir
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand. and The MacDiarmid Institute of Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Rayomand Shahlori
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand. and The MacDiarmid Institute of Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Duncan J McGillivray
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand. and The MacDiarmid Institute of Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - David Barker
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand.
| | - Jadranka Travas-Sejdic
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand. and The MacDiarmid Institute of Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| |
Collapse
|
5
|
Alford A, Kozlovskaya V, Kharlampieva E. Small Angle Scattering for Pharmaceutical Applications: From Drugs to Drug Delivery Systems. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1009:239-262. [PMID: 29218564 DOI: 10.1007/978-981-10-6038-0_15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The sub-nanometer scale provided by small angle neutron and X-ray scattering is of special importance to pharmaceutical and biomedical investigators. As drug delivery devices become more functionalized and continue decreasing in size, the ability to elucidate details on size scales smaller than those available from optical techniques becomes extremely pertinent. Information gathered from small angle scattering therefore aids the endeavor of optimizing pharmaceutical efficacy at its most fundamental level. This chapter will provide some relevant examples of drug carrier technology and how small angle scattering (SAS) can be used to solve their mysteries. An emphasis on common first-step data treatments is provided which should help clarify the contents of scattering data to new researchers. Specific examples of pharmaceutically relevant research on novel systems and the role SAS plays in these studies will be discussed. This chapter provides an overview of the current applications of SAS in drug research and some practical considerations for selecting scattering techniques.
Collapse
Affiliation(s)
- Aaron Alford
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA
| | - Veronika Kozlovskaya
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA
| | - Eugenia Kharlampieva
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA.
| |
Collapse
|
6
|
Papagiannopoulos A, Zhao J, Zhang G, Pispas S, Jafta CJ. Viscosity Transitions Driven by Thermoresponsive Self-Assembly in PHOS-g-P(PO-r-EO) Brush Copolymer. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aristeidis Papagiannopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, People’s Republic of China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, People’s Republic of China
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Charl J. Jafta
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn Meitner Platz 1, 14109 Berlin, Germany
| |
Collapse
|
7
|
Atanase LI, Riess G. Self-Assembly of Block and Graft Copolymers in Organic Solvents: An Overview of Recent Advances. Polymers (Basel) 2018; 10:E62. [PMID: 30966101 PMCID: PMC6414829 DOI: 10.3390/polym10010062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 12/31/2022] Open
Abstract
This review is an attempt to update the recent advances in the self-assembly of amphiphilic block and graft copolymers. Their micellization behavior is highlighted for linear AB, ABC triblock terpolymers, and graft structures in non-aqueous selective polar and non-polar solvents, including solvent mixtures and ionic liquids. The micellar characteristics, such as particle size, aggregation number, and morphology, are examined as a function of the copolymers' architecture and molecular characteristics.
Collapse
Affiliation(s)
- Leonard Ionut Atanase
- Faculty of Dental Medicine, "Apollonia" University, 700399 Iasi, Romania.
- Research Institute "Academician Ioan Haulica", 700399 Iasi, Romania.
| | - Gerard Riess
- University of Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse, Laboratoire de Photochimie et d'Ingénierie Macromoléculaires, 68093 Mulhouse CEDEX, France.
| |
Collapse
|
8
|
|