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The present article describes the synthesis and emulsion copolymerization of a block‐type amphiphilic poly(2‐oxazoline) macromonomer possessing a polymerizable vinyl ester group. The macromonomer was synthesized by one‐pot two‐stage block copolymerization of 2‐oxazolines using vinyl iodoacetate as initiator. 2‐Methyl‐ and 2‐n‐butyl‐2‐oxazolines were employed for the construction of hydrophilic and hydrophobic segments, respectively. The surface activities evaluated by the surface tension of the macromonomer in water were fairly good. Emulsion copolymerization of vinyl acetate with the macromonomer was carried out. The macromonomer acted as a polymeric surfactant, as well as a comonomer. The resulting copolymer latex particles were spherical and their diameter was in the sub‐micron range. The effects of the composition of the macromonomer on the emulsion copolymerization and the resulting latex particles were examined.
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Uyama et al. (1993) studied this question.
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