Nitrite-butadiene rubber

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. 

NaN, is used as an initiator for emulsion polymerization (Ref 137), as a cellulating agent (Ref 134) and as a retarder (Ref 185) in the manuf of sponge rubber. The addn of NaN, an alkali bicarbonate and an alkali to form a compn of pH 9-12 prevents or reduces plating out or coagulation of styrene and butadiene latexes stored in contact with metals (Ref 162). NaN, is used also to decomp nitrites in the presence of nitrates (Ref 172). The rate of nitrite decompn is increased with an increase in azide concn. Acosta (Ref 172) detd the optimum ratio to be CNaN,/CNaNO, 3-9- Compds of the structure R,R (- 0) (- NH) have been prepd from the corresponding sulfoxide and NaN, + H,S04 in chlf soln (Ref 171) ... 

PHENYLIC ACID (108-95-2) C HjOH Combustible solid, smelt (molten), or liquid [explosion limits in air (% by volume when heated) 3 to 10 flash point 174°F/79°C autoignition temp 1319°F/715°C Fire Rating 2]. Violent reaction with butadiene, strong oxidizers. Reacts, possibly violently, with strong acids caustics, aliphatic amines amides, oxidizers, calcium hypochlorite formaldehyde, lead diacetate menthol, P-naphthol, peroxydisulfuric acid peroxymonosulfuric acid potassium hydroxide sodium nitrite 1,2,3-trihydroxybenzene. Liquid attacks some plastics, rubber and coatings hot liquid attacks aluminum, magnesium, lead, and zinc. On small fires, use CO2 or dry chemical extinguishers. 

Nitrifizierung nitrify nitrieren nitrifying acid Nitriersaure nitrile rubber NitriUcautschuk (Butadien-Acrylnitril) nitrite Nitrit nitrobenzene Nitrobenzol... 

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