The aluminosilicate clay was modified according to the solventless method described in with slight modification. A glass plate with terpene was placed in the middle, and a bigger glass plate was filled with clay. The whole system (Fig. ) was wrapped with aluminum foil and put into the dryer for 24 h at 120°C. Sample akronyms are PBS for unmodified polymer film and PBS/M-X for composites, where X is P, L or PL, depending on terpene.