The morphological evolution of as-grown poly(phenylacetylene) (PPA) free standing films has been studied. Investigations performed by scanning electron microscopy show that the freshly prepared PPA films exhibit a glass-like morphology which subsequently evolves into a microsphere structure. After ageing for 3 months at room temperature, PPA films reach a stable enamel-like phase. The chemical structure of the Rh(I) catalysts does not appear to influence the morphology of PPA. However, different catalysts yield different rates of morphological evolution.
Morphological-study of Poly(phenylacetylene) Films, Prepared With Rh(i) Catalysts, From Scanning Microscopy Investigations / Russo, Maria Vittoria; G., Iucci; D., Ferro. - In: POLYMER. - ISSN 0032-3861. - 34:(1993), pp. 257-261. [10.1016/0032-3861(93)90075-L]
Morphological-study of Poly(phenylacetylene) Films, Prepared With Rh(i) Catalysts, From Scanning Microscopy Investigations
RUSSO, Maria Vittoria;
1993
Abstract
The morphological evolution of as-grown poly(phenylacetylene) (PPA) free standing films has been studied. Investigations performed by scanning electron microscopy show that the freshly prepared PPA films exhibit a glass-like morphology which subsequently evolves into a microsphere structure. After ageing for 3 months at room temperature, PPA films reach a stable enamel-like phase. The chemical structure of the Rh(I) catalysts does not appear to influence the morphology of PPA. However, different catalysts yield different rates of morphological evolution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
