B. Immirzi et al., Blends of biodegradable polyesters by reactive blending: preparation, characterisation and properties, J MATER SCI, 34(7), 1999, pp. 1625-1639
Blends of poly-epsilon-caprolactone (PCL) and poly-beta-hydroxybutyrate (PH
B) were prepared by mixing the two polymers in the presence of dicumylperox
ide (DCPO) in solution of chlorobenzene. Similarly blends were obtained by
mixing the two polymers with no peroxide added. The blends were prepared in
a break of composition, from 85% wt PHB/15% wt PCL to 15% wt PHB/85% wt PC
L, respectively. Also pure polymers were reacted with DCPO in the same way
of the blends. Thermal (DSC), spectroscopic, mechanical (tensile tests) and
morphological (SEM) analyses were performed on the blends and on the pure
polymers. Significant differences were found in the chemical-physical chara
cteristics of the blends with and without peroxide. (C) 1999 Kluwer Academi
c Publishers.