Synthesis of divinylbenzene-maleic anhydride microspheres using precipitation polymerization

Synthesis of Narrow or Monodisperse Poly(divinylbenzene) Microspheres by Distillation−Precipitation Polymerization

“…In our previous work, divinylbenzene was precipitation polymerized in acetonitrile as the solvent with AIBN as the initiator which resulted in narrow disperse particles. Such results were also reported by Stöver et al . for the synthesis of divinylbenzene−maleic anhydride microspheres using precipitation polymerization.…”

“…In our previous work, 23 divinylbenzene was precipitation polymerized in acetonitrile as the solvent with AIBN as the initiator which resulted in narrow disperse particles. Such results were also reported by Sto ¨ver et al 28 for the synthesis of divinylbenzene-maleic anhydride microspheres using precipitation polymerization. Apparently, acetonitrile meets the solvency conditions required for the narrow or monodisperse particle formation: that is, it dissolves the monomer but precipitates the forming polymer.…”

Lightly Cross-Linked Microgels by Precipitation Polymerization of Maleic Anhydride and Styrenic Monomers

“…As the mol fraction of 4MS increases in the styrenic monomer pool (4MS+Sty), the diameters increase monotonically from 2 to 3.5, and 12 μm, for particles made in 65 and 70 vol % MEK, respectively. These trends suggest that incorporating 4MS decreases the number of nuclei present at colloidal stability, resulting in larger final microgels. , This is also seen for 75 vol % MEK, although the diameter increase is limited once the mol fraction of 4MS exceeds 0.3. This is attributed to the excessive solvation of 4MS-rich networks at 75 vol % MEK, which may lead to decreasing efficiency of both oligomer capture and cross-linking.…”

Synthesis of Spherical Non‐Oxide Silicon Carbonitride Ceramic Particles

“…On further increasing the reaction time, the particles retain their shape and size, suggesting that the precipitation products are very stable. This formation process of PVSZ particles is similar to that of polystyrene particles, in which the particle growth is a result of a homogeneous precipitation polymerization process …”