Carboxylated acrylonitrile butadiene latex

Wu, Y.-P., et al. Structure of carboxylated acrylonitrile-butadiene rubber (CNBR)-clay nanocomposites by co-coagulating mbber latex and clay aqueous suspension. Journal of Applied Polymer Science, 2001. 82(11) 2842-2848. 

Styrene-butadiene rubber latex (SBR, GRS) and acrylonitrile-butadiene rubber latex (NBR) are two of the earliest to arrive on the market. Since then, many other types have appeared, with poly(vinyl acetate) and copolymers, acrylics (generally polymers and copolymers of the esters of acrylic acid and methacrylic acids), and carboxylic-SBR types being the major products. Since latices are aqueous emulsions, less... 

Styrene-butadiene, acrylonitrile-butadiene, chloroprene, and vinyl chloride emulsion (co)polymers are mainly used in their dried form. Carboxylated SBR, VAc (co)polymers, acrylics, and styrene-acrylic copolymers are used, on the other hand, as binders of formulation for several industrial applications in their dispersed form. Figure 7 shows the share of each of these families and the major industrial applications of these latexes. ... 

After the paper making process is complete, latexes that are useful as binders for the application of clays or CaCC>3 to paper for printing paper may be prepared using the dimer of AMS. In a typical formulation, styrene, butadiene, Me methacrylate, and acrylonitrile were emulsion polymerized in the presence of AMS dimer to obtain a copolymer latex.473 Surprisingly, the AMS dimer was used in combination with tert-dodecylmercaptan, so there may have been some residual odor. Unsaturated carboxylic acids, such as acrylic acid, or sulfonic acids, such as 2-ethylsulfonyl acrylate, or unsaturated amides, such as acrylamide, are also useful, providing the polarity necessary in these applications.474... 

Carboxylic elastomers have also been prepared by the addition of a carboxyl-bearing molecule such as thioglycollie acid, maleic anhydride, or acrylic acid to rubber in solvent, on the mill, or in latex. The preparation of a carboxylic polymer from a butadiene-acrylonitrile copolymer in an internal or Banbury mixer has been mentioned in the adhesives patent literature. The carboxylation of vulcanized natural rubber and of butadiene-styrene copolymers, including reclaimed stocks of these elastomers, by treatment with maleic an-... 

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