The structure of Pebax^® 2533 SA 01 consists of regular linear chains of rigid polyamide and soft polyether segments. This unique chemical structure allows for, through the polyether phase, the absorption and controlled release of volatile molecules (fragrances, oils, insecticides…)

As depicted in the graph below for the case of lavender perfumes, Pebax^® 2533 SA 01 exhibits a high level of initial absorption (up to 50%) and a uniform and long lasting release of the fragrance compared to other supports.

The evolution in time of lavender perfume components has been measured by chromatography (Head Space Technology).
The graph below represents the evolution in time of specific peaks corresponding to the olfactory notes of the perfumes.
Contrary to a cellulose support, Pebax^® 2533 SA 01 does not affect the nature of the perfume and allows for a consistent diffusion at a constant rate over a long period of time.

Pebax^® 2533 SA 01 pellets can be impregnated before transformation through dry-blending with the volatile substances:
The low melting point (135°C) of Pebax^® 2533 SA 01 allows for injection molding or extrusion of the polymer without the degradation of these volatile substances. 
Standard conditions of processing and coloration can be applied. To avoid modification of the volatile substances, lower processing temperatures are recommended.

Pebax^® 2533 SA 01 can be used as a support for oils, perfumes, insecticides, and pheromones (air fresheners, insect repellent devices, etc..).