Interpenetrating polymer networks from castor oil based polyurethanes and poly(methyl acrylate)—IV

✍ Scribed by Mayur Patel; Bhikhu Suthar

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 387 KB
• Volume: 23
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(87)90170-4

✦ Synopsis

Abstraet~Castor oil and toluene-2,4-diisocyanate were reacted to form liquid prepolyurethane under various experimental conditions, varying the NCO/OH ratio. The prepolyurethanes (PPU) thus obtained were interpenetrated with methylacrylate monomer containing ethylene glycol dimethacrylate, using radical polymerization initiated by benzoyl peroxide. The PPU/MA interpenetrating polymer networks were obtained as transparent tough films by transfer moulding. They were characterized by resistance to chemical reagents, thermal behaviour and mechanical properties. The mechanothermal behaviour was studied by dynamic mechanical analysis. The morphology was examined by Scanning Electron Microscopy. Dielectric properties were studied.