The Study on the Preparation and Characterization of Crosslinked Polyvinyl Alcohol Microspheres

摘要

Linear polyvinyl alcohol (PVA) as the matrix, Glutaraldehyde as crosslinking agent, the crosslinked polyvinyl alcohol microspheres (CPVA) was prepared by inverse microemulsion polymerization. Influence factors for forms and particle size of crosslinking spheres such as the ratio of oil and water, reaction temperature and time, crosslinking agent and catalyst use level, stirring speed. When reaction conditions changed, the particle size would change accordingly.