Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Starch xanthides

Stephens et al.70-72 examined the commercial potential of SX-reinforced rubber. SX reinforced styrene-butadiene and nitrile-butadiene rubber compounds, but displayed no reinforcement of natural rubber. The addition of resorcinol-formaldehyde resin at 8% of the starch weight significantly improved the mechanical properties for all three rubber compounds. The preparation of starch xanthide-rubber compounds by crosslinking the SX with sodium nitrite produced results similar to those obtained by adding resorcinol-formaldehyde resin. [Pg.725]

Starch xanthide. Starch xanthate that has been cross-linked with oxygen. [Pg.1175]

A method for analyzing the starch component of starch xanthide involves destruction of the xanthide group in alkali, followed by treatment of a neutralized sample with alphaamylase and a determination of recovered D-glucose.2251... [Pg.268]

H. L. Stephens, R. W. Roberts, T. F. Reed, and R. J. Murphy, Starch-Elastomer Master-baches, Ind. Eng. Prod. Res. Develop. 10(1), 84 (1971). Semi-IPNs prepared from rubber latex and aqueous polymer solution. Zinc starch xanthate or starch xanthide solutions. SBR or NBR latexes. Mixing of starch and latex, and coagulation. Physical and mechanical properties, oil resistance. [Pg.259]

The chemical nature of starch xanthate-poly(ethylenimine) has been studied in view of its efficacy as a wet-end additive for improving the mechanical strength of paper. Model systems suggested that small amounts of starch xanthide and poly(ethylenimine)thiuram disulphide, possible products of atmospheric oxidation, might be present these compounds would react rapidly with poly(ethyl-enimine) to yield thionocarbamates and thioureas, respectively. [Pg.443]

The uses of starch xanthide in the manufacture of paper and rubber have been discussed. [Pg.470]

Stout, E.L., and Doane, W.M., 1979, Pilot-Plant Process for Starch Xanthide Encapsulated Pesticides. J. Appl. Polym. Sci. 24 153-159. [Pg.209]

Oxidation of starch xanthate by either hydrogen peroxide503 or sodium hypochlorite504 gives the xanthide. 503 Patents505,506 have described the oxidation of cyanoethylstarch with 30% hydrogen peroxide at pH 8.5 and with hypochlorite... [Pg.204]

See other pages where Starch xanthides is mentioned: [Pg.725]    [Pg.726]    [Pg.726]    [Pg.236]    [Pg.725]    [Pg.726]    [Pg.726]    [Pg.236]    [Pg.266]    [Pg.267]    [Pg.268]    [Pg.170]   


SEARCH



© 2024 chempedia.info