Exploring the Self-Assembly Capabilities of ABA-Type SBS, SIS, and Their Analogous Hydrogenated Copolymers onto Different Nanostructures Using Atomic Force Microscopy
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Thin-Film Preparation
2.3. Morphological Characterization
3. Results
3.1. Effect of Block Nature and Solution Concentration
3.2. Effect of Annealing Temperature
3.3. Effect of Solvent Nature
3.4. Detailed Analysis of the Effect of Parameters on Morphology and Topography
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Dispersion Parameters | δd (MPa1/2) a | δp (MPa1/2) a | δh (MPa1/2) a | V (cm3/mol) b |
---|---|---|---|---|
Solvents | ||||
Toluene | 18.0 | 1.4 | 2.0 | 106.8 |
Cyclohexane | 16.8 | 0.0 | 0.2 | 108.7 |
Tetrahydrofuran (THF) | 16.8 | 5.7 | 8.0 | 81.7 |
Polymeric blocks | ||||
Polystyrene (PS) | 17.6 | 6.1 | 4.1 | - |
Polybutadiene (PB) | 18.0 | 5.1 | 2.5 | - |
Poly(isoprene) (PI) | 17.4 | 3.1 | 3.1 | - |
Poly(ethylene/propylene) (PEP) | 16.7 | 0.0 | 5.2 | - |
Poly(ethylene) (PE) | 18.1 | 0.0 | 0.0 | - |
Polymers | Toluene | Cyclohexane | THF | Affinity |
---|---|---|---|---|
PS | 0.170 | 0.360 | 0.088 | THF > Toluene> Cyclohexane |
PB | 0.091 | 0.241 | 0.178 | Toluene > THF > Cyclohexane |
PI | 0.036 | 0.127 | 0.160 | Toluene > Cyclohexane > THF |
PEP | 0.120 | 0.160 | 0.200 | Toluene > Cyclohexane > THF |
PE | 0.039 | 0.044 | 0.506 | Toluene > Cyclohexane > THF |
Morphologies | SEPS | SIS | SEES | SBS | ||||
---|---|---|---|---|---|---|---|---|
1% | 3% | 1% | 3% | 1% | 3% | 1% | 3% | |
Disordered | - | - | 4C,3C 4T,3T 2F,3F 4F | 4C,3C 4T,3T 3F | 1C,2C 3C,1T 2T,3T 1F,2F 3F | 1C,2C 3C,1T 2T,3T 4T,1F 2F | 2C,3C 4C,2T 4T,1F 2F,3F 4F | 2C,3C 4C,3T 4T,1F 2F,3F 4F |
Worm-like | 4C,3C 4T,1F 2F,3F 4F | 4T,1F 2F,3F 4F | 2T,1F | - | 4C,4T 4F | 4C,4F 3F | 1C,3T | - |
Worm-like + crystals | 2C,3T 2T | - | - | - | - | - | - | - |
Worm-like + perpendicular cylinders | - | 1C,2C 3C,4C 1T,2T | - | - | - | - | - | 2T |
Parallel cylinders | - | - | 1C | 1C,1T | - | - | - | 1C |
Perpendicular cylinders + crystal-like domains | - | - | 2C | 2C,2T 4F,2F | - | - | - | - |
Perpendicular cylinders (disordered) | - | - | - | - | - | - | 1T | 1T |
Perpendicular + parallel cylinders | 1C,1T | 3T | 1T | 1F | - | - | - | - |
Parameters | ||||
---|---|---|---|---|
Concentration | 1% | 3% | - | - |
Solvent | Toluene (T) | THF (F) | Cyclohexane (C) | - |
Temperature | RT (1) | 60 °C (2) | 80 °C (3) | 100 °C (4) |
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Politakos, N.; Kortaberria, G. Exploring the Self-Assembly Capabilities of ABA-Type SBS, SIS, and Their Analogous Hydrogenated Copolymers onto Different Nanostructures Using Atomic Force Microscopy. Materials 2018, 11, 1529. https://doi.org/10.3390/ma11091529
Politakos N, Kortaberria G. Exploring the Self-Assembly Capabilities of ABA-Type SBS, SIS, and Their Analogous Hydrogenated Copolymers onto Different Nanostructures Using Atomic Force Microscopy. Materials. 2018; 11(9):1529. https://doi.org/10.3390/ma11091529
Chicago/Turabian StylePolitakos, Nikolaos, and Galder Kortaberria. 2018. "Exploring the Self-Assembly Capabilities of ABA-Type SBS, SIS, and Their Analogous Hydrogenated Copolymers onto Different Nanostructures Using Atomic Force Microscopy" Materials 11, no. 9: 1529. https://doi.org/10.3390/ma11091529