Vahid Jabbari - Preparation of Ionomer Poly (Ethyl Vinyl Ether-Maleic Anhydride) Block Copolymer via In Situ Radical Polymerization Incorporated by ZnO and MgO Nanoparticles

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      Publication Details (including relevant citation   information):

      Polymer-Plastics Technology and Engineering 53 (5), 504-512

      Abstract:

      The current study deals with synthesizing of alternative   copolymer of poly (ethyl vinyl ether- maleic anhydride)   (PEVE-MA), using maleic anhydride (MA) and ethyl vinyl ether   (EVE) as monomers, via a simple and cost-effective method of   free-radical polymerization followed by incorporation of ZnO and   MgO nanoparticles into the prepared copolymer. In fact,   introduction of ionic groups in the polymer backbone, so-called   ionomers, open the way to new applications where ionic groups can   act as physical and chemical cross-linkers that greatly modify   the final mechanical and thermal properties of the materials.   Furthermore, the hydrophilicity of the polymer chains can be   enhanced by the presence of the ionic species, and so the   materials can be processed as conventional dispersions even in a   polar solvent such as water. PEVE-MA ionomers were prepared by   partial neutralization of PEVE-MA. Subsequently, two categories   of bulk and nanoparticles were incorporated into the copolymer.   In both cases, the incorporation of the ionic groups increased   the melting point, which was higher than the glass transition   temperature (Tg), and enhanced the   Tg of PEVE-MA by 35–40°C. The pristine   copolymer was a fine white powder, but the introduction of the   ionic groups changed its physical and chemical properties due to   the physical cross-links formed by intermolecular interactions of   the ionic dipoles.

      Address (URL): DOI:   10.1080/03602559.2013.845212