According to Henry's law, higher the TMA partial pressure in the growth chamber, higher the TMA concentration in the polymer matrix and consequently larger its swelling. In this respect, both polymers exhibit a similar trend: a progressive increase of MAX was induced when increasing tTMA from 20 to 35 ms, while no further MAX increase was observed for tTMA= 40 ms, as shown in Figure and 3b for PLA and PMMA, respectively. This result suggests that the solubility limits of TMA into these polymer templates was achieved. It is worth noting that the MAX values in the case of the PLA samples are significantly larger than the ones obtained in the case of the PMMA samples consistently with the idea that a larger amount of TMA has been incorporated into the PLA samples.