Characterization of magnetite nanoparticle / polymer nanocomposite materials in gel and dry state

摘要: We present the characterization of nanocomposite materials made from functionalized magnetite nanoparticles and HEUR amphiphilic polymers in gel dry states. The hydrophobically modified particles are mainly associated with two hydrophobic end-groups polymer. One part this study focuses on polymeric state dynamics, that governed by network through interactions forming a wet microphase separated system state. Apart network, seem to be well distributed at concentrations below 1%wt, while strong clustering is observed higher concentrations. magnetic response shows super-paramagnetic behavior blocking temperature ca. 25K.