Fig. 1
From: Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels
Polymer encapsulation using activated pillar[5]arene crystals. a Activated crystals of pillar[5]arene (P5). b Poly(ethylene oxide) (PEO) melted at 80 °C. c, d Host–guest complex crystals P5 ⊃ PEO produced by immersing activated crystals of P5 in melted PEO at 80 °C followed by washing the crystals with water to remove un-complexed PEO
