Development and characterization of vinylated polyesteramide from non-edible seeds oils

Autor: Fahmina Zafar, S. Yadav, S. M. Ashraf, Fehmida Naqvi, Sharif Ahmad
Rok vydání: 2006
Předmět:
Zdroj: Progress in Organic Coatings. 56:1-7
ISSN: 0300-9440
DOI: 10.1016/j.porgcoat.2005.08.015
Popis: Annona squamosa- and Pongamia glabra-based polyesteramides (ASPEA and PGPEA) have been reported as corrosion protective coatings. To improve their film properties such as curing, physico-mechanical and anticorrosive properties further, post-vinylation of these resins with styrene and vinyl acetate monomer in varying ratio (4:1, 3:1 and 2:1) was carried out in the presence of free radical initiator (benzoyl peroxide). The incorporation of styrene and vinyl acetate in ASPEA/PGPEA was confirmed by FTIR and 1 H NMR spectral techniques. Physico-chemical, physico-mechanical and anticorrosive properties were studied by standard methods. Thermal stability and curing behaviour of vinylated ASPEA/PGPEA was studied by thermo gravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques. It has been observed that vinylation of these resins improves the curing, physico-mechanical and anticorrosive performance of ASPEA/PGPEA films. Among all 2:1 ASPEA/PGPEA:styrene/vinyl acetate ratio exhibited best results.
Databáze: OpenAIRE