investigated before and after processing, in order to understand how temperature and other extrusion or injection conditions affect the polymer degradation. All the processed samples showed an increasing in the melt flow index, a decreasing of the dynamic crystallization temperature, and a reduction in the molar mass, suggesting some degradation. The molar mass reduction after processing, predicted when only thermal degradation is considered, was calculated in function of the kinetic parameters, such as constant thermal degradation and residence time during the industrial processing. It was found that the real molar mass reduction was higher than the theoretical value, indicating an important contribution of the shearing of polymeric chains...
Poly(hydroxyalkanoate)s (PHA)s, as all melt-processed polymers, may undergo thermal degradation at t...
During processing, polymers are often subjected to high temperatures and high shear rates during the...
During processing, polymers are often subjected to high temperatures and high shear rates during the...
PHB was characterized after different industrial processes by Differential Scanning Calorimetry (DSC...
Thermal degradation at processing temperature and the effect on the rheological properties for poly(...
In the last years polyhydroxyalkanoates (PHAs) gained increasing attention as potential sustainable ...
The aim of this thesis was to observe and to evaluate the effects of selected additives on stabiliza...
Polymer processing often activates material degradation, which affects to some extent the performanc...
Polymer processing often activates material degradation, which affects to some extent the performanc...
Abstract The effect of thermal and shear histories on the crystallization rate of poly(3-hydroxybuty...
The degradation of poly(lactic acid) (PLA) during thermal-mechanical processing was studied and the ...
Dynamic and isothermal degradation of PHB were conducted in TG, Py-GC/MS, and glass tube oven in ord...
Biobased and biodegradable polyhydroxyalkanoates (PHAs) have great potential as sustainable packagin...
Poly(hydroxybutyrate), or 'Biopol' as it is commercially known, is a naturally occurring, biodegrada...
International audienceEmbrittlement caused by injection molding was investigated on a commercial gra...
Poly(hydroxyalkanoate)s (PHA)s, as all melt-processed polymers, may undergo thermal degradation at t...
During processing, polymers are often subjected to high temperatures and high shear rates during the...
During processing, polymers are often subjected to high temperatures and high shear rates during the...
PHB was characterized after different industrial processes by Differential Scanning Calorimetry (DSC...
Thermal degradation at processing temperature and the effect on the rheological properties for poly(...
In the last years polyhydroxyalkanoates (PHAs) gained increasing attention as potential sustainable ...
The aim of this thesis was to observe and to evaluate the effects of selected additives on stabiliza...
Polymer processing often activates material degradation, which affects to some extent the performanc...
Polymer processing often activates material degradation, which affects to some extent the performanc...
Abstract The effect of thermal and shear histories on the crystallization rate of poly(3-hydroxybuty...
The degradation of poly(lactic acid) (PLA) during thermal-mechanical processing was studied and the ...
Dynamic and isothermal degradation of PHB were conducted in TG, Py-GC/MS, and glass tube oven in ord...
Biobased and biodegradable polyhydroxyalkanoates (PHAs) have great potential as sustainable packagin...
Poly(hydroxybutyrate), or 'Biopol' as it is commercially known, is a naturally occurring, biodegrada...
International audienceEmbrittlement caused by injection molding was investigated on a commercial gra...
Poly(hydroxyalkanoate)s (PHA)s, as all melt-processed polymers, may undergo thermal degradation at t...
During processing, polymers are often subjected to high temperatures and high shear rates during the...
During processing, polymers are often subjected to high temperatures and high shear rates during the...