Lavinia Alexandru - Profile on Academia.edu (original) (raw)
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Papers by Lavinia Alexandru
Morphological studies on roll extruded, plasticized composites
Journal of Applied Polymer Science, 1991
A study of the morphologies of polymer/carbon black composites, plasticized with small molecule o... more A study of the morphologies of polymer/carbon black composites, plasticized with small molecule organics, is presented. Four different plasticizers and three different polymers were used. In all cases, the plasticizers depress the Tg of the polymers. Whereas in some cases the organic small molecule was found to be molecularly dispersed in the polymer matrix, phase separation occurred in other cases beyond a certain composition. In the latter instances, the excess plasticizer formed crystalline aggregates and a depression of the melting point of the plasticizer was observed. The samples were prepared by a process similar to roll extrusion, which causes biaxial orientation of the crystalline aggregates.
Morphological studies on roll extruded, plasticized composites
Journal of Applied Polymer Science, 1991
A study of the morphologies of polymer/carbon black composites, plasticized with small molecule o... more A study of the morphologies of polymer/carbon black composites, plasticized with small molecule organics, is presented. Four different plasticizers and three different polymers were used. In all cases, the plasticizers depress the Tg of the polymers. Whereas in some cases the organic small molecule was found to be molecularly dispersed in the polymer matrix, phase separation occurred in other cases beyond a certain composition. In the latter instances, the excess plasticizer formed crystalline aggregates and a depression of the melting point of the plasticizer was observed. The samples were prepared by a process similar to roll extrusion, which causes biaxial orientation of the crystalline aggregates.