@article {Majszczyk20064279, title = {The influence of low-concentration γ-Fe2O3 magnetic nanoparticles in a poly(ether-b-ester) copolymer matrix on interfacial polarization and glass transition}, journal = {Journal of Non-Crystalline Solids}, volume = {352}, number = {40-41 SPEC. ISS.}, year = {2006}, note = {cited By 16}, pages = {4279-4282}, abstract = {A new poly(ester-b-ether) copolymer filled with magnetic γ-Fe2O3 nanoparticles of low concentration (0.1 and 0.3 wt\%) has been synthesized, with poly(ethylene terephthalate) (PET) as a rigid segment and poly(tetraoxymethylene) (PTMO) as the flexible segment at the ratio of 50 wt\%. The filler was used in the form of suspension or solid powder. The dielectric spectroscopy results for these materials, in a wide range of frequencies and temperatures, are presented and compared with similar results for a pure polymeric matrix. Two relaxation processes, α and β, have been observed clearly in all samples at about 253 K and 163 K, respectively. The α process was shifted towards the lower temperatures as the nanoparticle content increased, while the β-relaxation was unaffected by the doping. The interfacial polarization effect was observed in the samples with nanoparticles, less pronounced for the larger nanoparticles. {\textcopyright} 2006 Elsevier B.V. All rights reserved.}, doi = {10.1016/j.jnoncrysol.2006.07.021}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-33749603940\&doi=10.1016\%2fj.jnoncrysol.2006.07.021\&partnerID=40\&md5=c668637d0fc180ace826faf5981ff2ff}, author = {Majszczyk, J. and Guskos, N. and Typek, J. and V. Likodimos and Maryniak, M. and Roslaniec, Z. and Kwiatkowska, M. and Petridis, D.} }