Interface-initiated emulsion polymerization: Synthesis of hollow sphere with a hole in the shell

The polystyrene (PSt) hollow spheres with a hole in the shell can be successfully prepared by interface-initiated emulsion polymerization in the presence of isooctane. The results indicated that the St/isooctane ratio had a great influence on the final morphology and divinylbenzene (DVB) disadvantaged the form of the hollow structure.