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Selectively solvated triblock copolymer networks under biaxial strain
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View: Figures


Image of FIG. 1.
FIG. 1.

SAXS profiles of solvated SEBS1 (wBC = 0.30) before (labeled) and after annealing. Filled arrows are labeled with the modulus (the square of the peak position ratio), and the open arrow identifies the principal peak of the annealed, unstrained specimen. Equibiaxial strain levels are listed, and arrowheads follow the position of the third peak upon stretching.

Image of FIG. 2.
FIG. 2.

P(q) from SAXS profiles of solvated SEBS2 (wBC = 0.30) at three incident beam angles (ψ, labeled). Solid lines connect the minima, and the dashed lines identify the minima at 0% strain. An illustration of the strain-induced transition from spherical to ellipsoidal core in planar (ψ = 0°) and cross-sectional (ψ = 90°) views is included.

Image of FIG. 3.
FIG. 3.

In (a), regressions of S(q) performed using the PY model with (solid lines) and without (dashed lines) the triangular potential depicted in (b). In (b), Δɛ/kT as a function of equibiaxial strain for solvated SEBS2 at different wBC: 0.15 (•), 0.20 (○), 0.25 (▴), and 0.30 (△). Data evaluated at wBC = 0.30 are fitted to an exponential (solid line). Diagrams illustrate the cross-sectional deformation and interpenetration of micelles before and after biaxial straining.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Selectively solvated triblock copolymer networks under biaxial strain