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Polyferrocenylsilane microspheres are readily formed under mild reaction conditions. Chemical oxidation leads to positively charged particles that undergo electrostatic self-assembly with smaller negatively charged silica microspheres, which leads to composite superstructures (see Figure), whereas pyrolysis leads to spherical magnetic ceramics that self-organize into two-dimensional arrays in a magnetic field.
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Kulbaba et al. (2001) studied this question.
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