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Monodisperse crosslinked poly(chloromethylstyrene-co-divinylbenzene) (poly(CMSt-co-DVB)) microspheres were prepared by distillation-precipitation copolymerization of chloromethylstyrene (CMSt) and divinylbenzene (DVB) in neat acetonitrile. The polymer particles had clean surfaces due to the absence of any added stabilizer. The size of the particles ranges from 2.59 μm to 3.19 μm and with mono-dispersity around 1.002–1.014. The effects of monomer feed in copolymerization on the microsphere formation were described. The polymer microspheres were characterized by SEM and chlorinity elemental analysis.

In this report, an inorganic salt assisted micro-emulsion method was reported for the preparation of mono-disperse CaWO₄ microspheres with hierarchical structures. The as-obtained microspheres are composed of tiny nanorods, which have been proved by the field emission scanning electronic microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM) observations. The formation of these hierarchical mono-disperse microspheres is considered to be the synergistic effect of both surfactant and the inorganic salt. Based on the time-dependent experiments, a probable formation mechanism based on surface adsorption and oriented attachment has been proposed. The photoluminescence properties of the microspheres were investigated. The generality of this synthetic method for other metal tungstates were also carefully investigated, which indicates that the morphologies of the final product not only depend on the synthetic conditions, but also depend on the growth habit of the materials.

Nanoparticles (NPs) with high uniformity have been extensively investigated for their excellent chemical stability. Near-monodisperse globular MoS₂ NPs were prepared with sulphur powders (SPs) as a sulphur source by a one-pot polyol-mediated process without surfactants, transfer agents and toxic agents at 170–190${}^{\circ }$C. The as-processed SPs greatly affected the formation of the MoS₂ NPs after low-activity sulphur (S₈)_n was reassembled from common SPs (S${}_8)$. The average size of MoS₂ NPs can be reduced remarkably from 100–200nm to 50nm by introducing low amounts of MnCl₂. A preliminary four-step growth mechanism based on the aggregation-coalescence model was also proposed. This green and simple method may be an alternative to the common hot-injection and heating-up methods for the preparation of monodisperse NPs, particularly transition metal dichalogenides.

Monodisperse micro-nano nickel powders have been prepared by chemical reduction of aqueous solution NiSO₄, NaOH and NaH₂PO₂, and the influence of pH value and initial concentration of NiSO₄ on the size, structure, morphology and microwave absorption properties of nickel powders were investigated. The crystal structure of nickel powders was characterized by X-ray diffraction (XRD). And the morphology of the as-synthesized products was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The microwave absorption properties of the composite materials were characterized by network analyzer. The result indicates that the growth of nickel powders produced by NiSO₄ and NaH₂PO₂ at alkaline condition deeply relies on pH value and initial concentration of NiSO₄ in reaction system. Different sizes of nickel powders with the diameter of 1.5$\mu$m and 180nm were produced at the pH value of 10 and initial concentration of NiSO₄ at 0.5mol/L. The network analyzer showed definite microwave absorption properties of nickel powders with different sizes in the range of 0.5–18.0GHz.