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Chainguard™ I-15

Technical Datasheet | Supplied by DowDuPont (Dow)
15 percent aqueous solution of N-isopropylhydroxylamine (IPHA). Acts as polymerization inhibitor. Chainguard™ I-15 is an excellent multi-purpose shortstop for free-radical polymerizations. It provides excellent mooney viscosity control and effective popcorn polymer prevention. It allows production of nitrosamine-free rubber. It inhibits corrosion and possesses reduced carryover of shortstop into recycled monomer. The replacement of conventional shortstops, such as diethylhydroxylamine (DEHA) and sodium dimethyldithiocarbamate (SDD), with Chainguard I-15 results in cost savings and helps plants to minimize concerns of hazardous air pollutants, formed by SDD exposure to strong acids and high temperatures. The elastomers shortstopped with Chainguard I-15 have a more desirable color that those stopped with SDD/DEHA or DEHA alone. Chainguard™ I-15 clearly exhibits a better effective level than SDD and DEHA. Used widely to shortstop emulsion styrene-butadiene and acrylonitrile-butadiene polymerization reactions in the production of styrene-butadiene rubber (SBR) and acrylonitrile-butadiene rubber (NBR) elastomers respectively. Can also be used to effectively stop other commercially important free-radical processes, such as suspension polymerization of vinyl chloride, and emulsion polymerizations of chloroprene and fluorinated olefins.
Product Type
Polymerization Initiators / Inhibitors / Catalysts > Polymerization inhibitors
Chemical Composition
15 percent aqueous solution of N-isopropylhydroxylamine (IPHA)
CAS Number
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