Cytec Unsaturated aliphatic isocyanate TMI 2094-99-7

Products Description

TMI and aliphatic isocyanate are difunctional with vinyl groups monomer. This product contains aliphatic isocyanate groups at the tertiary carbon position and a reactive double bond.
The double bond is easy to carry out free radical polymerization with various unsaturated monomers, and the formed copolymer has isocyanate group attached.
Due to the stabilization of the isocyanate groups, emulsion and solution copolymerizations are possible.

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Emulsion modification

Car original paint

Rheology control agent

plastic modification

Macromer synthesis

Light stable coating

Typical Performance

Solvents Aggregation
TMI1 can interact with many such as acrylate, methacrylate, acrylonitrile through free radical Copolymerize with vinyl monomers such as styrene. Solution polymerization gives polymers many desired constituents over a wide range of molecular weights and glass transition temperatures. These polymers have very low residual monomers after synthesis.
The reactivity of the double bond is similar to that of α-methylstyrene. The recommended polymerization temperature is above 100°C in order to obtain random copolymers in a fast polymerization reaction.
In moisture-curing systems, the isocyanate groups can be kept intact if reacted with a typical isocyanate blocking agent to form a one-component heat-curing coating. For the same blocking agent, the unsealing temperature provided by the isocyanate group at the tertiary carbon can be reduced by 10°C-15°C.

emulsion polymerization
The uniqueness of tertiary carbon isocyanate lies in the reaction with water below or at 40℃ is slow. This property allows TMI to be used in emulsion synthesis with minimal loss of isocyanate groups. Emulsions containing TMI can be produced using redox systems. Isocyanate stability in synthetic emulsions depends on several factors, the presence or absence of carboxylic acid-containing monomers being the two most defining characteristics, and the location of the isocyanate in the emulsion particles. The addition of acidic groups catalyzes the reaction of isocyanate with water and reduces the storage stability of isocyanate groups. If the pH of the emulsion needs to be adjusted, the addition of a tertiary amine is required to avoid reaction with the isocyanate.

Moisture curing emulsion containing TMI improves tensile strength and resistance to film formation Scrub performance.

large Single application

The isocyanate group on TMI provides a convenient way to make NH or OH-containing Groups of molecules are converted into polymeric macromonomers. Various macromonomers can be polymerized into solutions and emulsions to provide different properties such as rheology control, promotion of wet adhesion, steric stability and plastic modification.

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TMI is moisture sensitive and must be stored in its original airtight container, protected from moisture and air damage to this product. If only part of the product is stored in the container, it is necessary to fill the space above the liquid surface with dry nitrogen before sealing.
TMI is supplied in butylated hydroxytoluene for stability and it is recommended that TMI be stored out of direct sunlight or in cool conditions. Storage above room temperature can lead to polymer formation.

health and Safety Information

Inhalation of TMI is harmful. The liquid can cause eye pain and allergic skin reactions. Where closed systems are not used, good protection and exhaust ventilation of the site must be provided to minimize leakage. See Cytec Industry Inc. Material Safety Data Sheet number 03049 for more information.