Nanocompósitos ternários de amido termoplástico e poli(Butadieno maleatado)

• Main Authors: Regina F. Ó, Cristina T. Andrade
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2012-01-01
• Series: Química Nova
• Subjects: starch; hydroxyl-terminated polybutadiene; organoclay
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600015&lng=en&tlng=en

Liquid polybutadiene (PBLH) was modified with maleic anhydride (MA). The material (PBLHM) was characterized and used to prepare hybrid materials by blending with glycerol-plasticized cassava starch (TPS) and an organophilic clay at 5 wt% content. Processing was performed by extrusion under mild conditions and led to TPS/PBLHM/clay hybrids, at 95/5 to 85/15 TPS/PBLHM compositions, which were characterized by contact angle measurements, X-ray diffraction and mechanical analysis. The results revealed a reduction in the hydrophilicity and the reinforcement of the hybrid materials. Biodegradability tests showed that the addition of clay and of PBLHM led to materials with high biodegradability.