Summary of SAXS data for TBPE-1 to -9.
| Sample | d a/nm | Observedbq*/q | Morphologyc | Expectedd |
|---|---|---|---|---|
| TBPE-1 | 21.5 | 1 | n.d | S/HEX |
| TBPE-2 | 29.0 | 1, 2, 3, 4 | LAM | LAM/DG |
| TBPE-3 | 24.1 | 1, 2 | LAM (weakly ordered) | LAM |
| TBPE-4 | 24.9 | 1,2 | LAM (weakly ordered) | LAM |
| TBPE-5 | 34.0 |
|
HEX (weakly ordered) | LAM |
| TBPE-6 | 23.0 |
|
HEX | HEX |
| TBPE-7 | 20.0 |
|
HEX | HEX |
| TBPE-8 | 21.5 |
|
HEX | S |
| TBPE-9 | 18.1 |
|
S | S |
Domain spacing, d calculated from the principal scattering peak, q*: d = 2π/q*.
Observed Bragg reflections, missing peaks in ( ).
Proposed phase morphology based on SAXS data.
Expected phase state based on theoretical phase diagram from Matsen for linear ABA-triblock copolymers and literature SBCs of similar N and composition. LAM = lamellar, HEX = hexagonally packed cylinders, S = closed-packed spheres and DG = double gyroid.90,95–97