Oxide-reduction method for preparation of emulsion polymer with low monomer content
A polymer and residual technology, applied in the field of redox preparation of emulsion polymers with low residual monomer content, can solve the problems of reducing the content of total volatile organic compounds, less effective, reducing the content of monomers, etc.
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Embodiment 1
[0058] The reduction of embodiment 1 residual monomer
[0059] The procedure of Comparative Example A was followed except that erythorbic acid was replaced by 0.23 g of 2-hydroxy-2-sulfinylacetic acid (50% by weight sodium salt of sulfinate; 0.0011 moles of reducing agent).
Embodiment 2
[0060] Embodiment 2 Reduction of residual monomer
[0061] The procedure of Example 1 was followed except that 2 ppm copper (as a 0.1% solution in copper nitrate hemipentahydrate) was added to the emulsion polymer before the oxidizer and reducer additions began.
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