Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 24, Issue 12, Pages 737-741Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200350016
Keywords
ferrofluids; gels; magnetic polymers; theology; uniaxial
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We describe the preparation and characterization of uniaxial magnetic gels. Fibril formation of the embedded magnetic particles generates easily detectable magnetic and optical anisotropies. A finite magnetization is frozen in and leads to a ferromagnetic-like response in small homogenous external magnetic fields. We present for the first time, frequency dependent measurements of the shear modulus G'. Despite their optical and magnetic anisotropy, the gels are mechanically isotropic.
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