| Summary: | 碩士 === 國立成功大學 === 化學工程研究所 === 82 === Four types of monomeric surfactants were synthesized, and then
copolymerized with acrylamide or acrylic acid by radical
polymerization, then these monomeric or polymeric surfactants
were used in Fe203/Water system and silica/water systems to
study their dispersing or flocculating behaviers. Those
propeties were invistigated by means of apparent viscosity
particle size method, scanning electrical microscopy, surface
tension method, and fluoresence method, The results show that
monomeric cationic surfactant have remarkable flocculating
ability to silica in water system at pH=2, 7. than others, For
Fe203/Water, the acrylic copolymer show better dispersing
ability than the corresponding acrylamide copolymers. Also,
the measurements of surface tension and fluorescence for those
monomeric and polymeric surfactants were used to interpret
their behaviors in water.
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