Abstract
Typical natural rubber (NR) foam could be produced by an addition of some blowing agents in dry NR. The porous topography of this produced material is interesting for applying in field of pharmaceutical science and related. For this study, the porous natural rubber structure was attempted to be fabricated by casting technique. The addition of various grades of polyethylene glycol into NR solution was performed before casting however there was no apparent pore formation. Olive oil and distilled water could not induce the pore formation whereas propylene glycol, triethyl citrate and NMP addition exhibited the ability to induce the pore formation in NR matrix film. This obtained structure will be tested and used as controlled drug delivery.
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