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Emulsifying agent oxide copolymer

Teyssie and coworkers have studied the surface, interfacial, and emulsifying properties of AB2 stars where A is a polydiene or polyvinyl block and B polyethylene oxide)(PEO) [297,298]. The miktoarm stars were shown to be better emulsifying agents for water-organic solvent mixtures than linear block copolymers. Saturation of the interface is reached more quickly with the miktoarm stars. Their results are in agreement with the results of Xie and Xia on PS2PE02 stars [228]. [Pg.115]

EMULSION POLYMERIZATION Used for standard SBR. Monomer is emulsified in water with emulsifying agents. Polymerization is initiated by either decomposition of a peroxide or a peroxydisulfate. Hot SBR is initiated by free radicals generated by thermal decomposition of initiators at 50°C or higher. Cold SBR is initiated by oxidation-reduction reactions (redox) at temperatures as low as —40°C. Stjrrene content normally is 23%. Copolymer is randomly distributed. Structure of butadiene contents is about 18% ds-1,4, 65% frans-1,4, and 15-20% vinyl. [Pg.983]

See other pages where Emulsifying agent oxide copolymer is mentioned: [Pg.437]    [Pg.72]    [Pg.106]    [Pg.437]    [Pg.73]    [Pg.129]    [Pg.481]    [Pg.169]    [Pg.42]    [Pg.556]    [Pg.263]    [Pg.275]    [Pg.344]    [Pg.40]    [Pg.163]    [Pg.280]    [Pg.25]    [Pg.66]    [Pg.53]   
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Copolymer emulsifiers

Copolymers oxide)

Oxidation agent

Oxidation oxidizing agent

Oxidizing agents

Oxidizing agents oxidants

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