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Zinc borate hollow nanospheres with diameter of 30 ± 2 nm have been fabricated by using polymeric micelles of poly(styrene-block-acrylic acid) (PS-b-PAA) as a template. The polymer forms spherical micelles with PS-core and PAA-corona in aqueous solutions, which shows pH-dependent behavior. Zinc borate hollow nanospheres shrink during calcination. FTIR measurements confirm that the template polymer was completely removed during calcination.
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Alam et al. (2014) studied this question.
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