Synthesis and characterization of poly(styrene-co-divinylbenzene) and nanomagnetite structures.

The use of iron oxide nanoparticles for the synthesis of adsorbents materials with application in contaminated water remediation is based on both their magnetic and adsorption properties. Poly(styrene-co-divinylbenzene) - Poly(Sty-co-DVB)microparticles are widely known for this use and the addition of magnetite comes to add magnetic properties, however it should not limit the functionalization processes for formation of cationic and/or anionic resins. Thus, there is a concern about the stability of magnetite in acidic environments, as required by the sulfonation process, for example.

Effects of the addition of MWCNT and ZrO nanoparticles on the dosimetric properties of PVDF.

The industrial application of radiation processing involves high doses of gamma or electron radiation to cause structural changes in materials, such as rubber vulcanization and polymer degradation, among others. A reliable dosimetric system is necessary to guarantee the desired effects and also to avoid damages. Poly(vinylidene fluoride) [PVDF] homopolymer has been recently proposed for application in high gamma dose dosimetry.