丙烯酸酯及苯乙烯微乳体系的相行为及微乳聚合

甲基丙烯酸甲酯;十二烷基磺酸钠;十二烷基磺酸钠;丙烯酸酯及苯乙烯微乳体系的相行为及微乳聚合

Phase Behavior and Microemulsion Polymerization of Acrylate or Stryrene System

The phase behaviors for three microemulsion systems of MMA/MA/SDS/H 2O?MA/SDS/n-butanol/H 2O and St/MMA/SDS/H 2O(abbr. to MMA, MA and St, respectively) were investigated. For each of the cosurfactant-free systems(MMA,St), there exist only a small single phase microemulsion region near the vertex of surfactant in rich, whereas for the cosurfactant-based system(MA), the area of single phase microemulsion is much larger. The types of the single phase in MA system as characterized by conductivity and viscosity, measurements can be divided into different structural regions:W/O single phase region, bicon- tinuous phase region and O/W single phase region. The relationship of the porous structure of polymer with its pregnant microemulsion was elucidated. By photo-polymerization, microlatex is the only polymer from the system of St, whereas for the other systems, materials from latex to different porous solids can be made according to the structure of precursor microemulsions. For O/W microemulsion, polymer is a semitransparent latex or opaque one, and from W/O microemulsion, product is closed porous materials, whereas for bicontinuous microemulsion, both the polymer and pores have bicontinuous morphology.