Decoupling temperature-volume effects on Poly[2-Methoxy-5-(2′- Ethylhexyloxy)-1,4-Phenylene-Vinylene] films at the β‑relaxation temperature - Silva, Silésia de Fátima Curcino da; Foschini, Maurício; Tozoni, José Roberto; Oliveira Junior, Osvaldo Novais de; Campana, Patricia Targon; Marletta, Alexandre (Journal of Physical Chemistry A, 2020)