title: Highly stretchable nanoalginate based polyurethane elastomers.
abstract: Highly stretchable elastomeric samples based on cationic polyurethane dispersions-sodium alginate nanoparticles (CPUD/SA) were prepared by the solution blending of sodium alginate and aqueous polyurethane dispersions. CPUDs were synthesized by step growth polymerization technique using N-methyldiethanolamine (MDEA) as a source of cationic emulsifier. The chemical structure and thermal-mechanical properties of these systems were characterized using FTIR and DMTA, respectively. The presence of nanoalginate particles including nanobead and nanorod particles were proved by SEM and EDX. It was observed that thermal properties of composites increased with increasing SA content. All prepared samples were known as thermoplastic-elastomers with high percentages of elongation. Excellent compatibility of prepared nanocomposites was proved by the DMTA data.
authors: Department of Polyurethane and Nanopolymers, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Islamic Republic of Iran.
authors: Hamed
authors: H
authors: Daemi
authors: Mehdi
authors: M
authors: Barikani
authors: Mohammad
authors: M
authors: Barmar
mesh_terms: D000464:Alginates / Q000737:chemistry*; D004548:Elasticity; D053758:Nanoparticles / Q000737:chemistry; D058105:Polymerization; D011140:Polyurethanes / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D000464:Alginates; D011140:Polyurethanes