Collection: Diisocyanates [Polyimide Raw Materials]

Diisocyanates [Polyimide Raw Materials] — includes both aromatic and alicyclic diisocyanate compounds containing two reactive -N=C=O groups, serving as key monomers for forming urethane and polyimide bonds. Variations in substituent position and ring structure affect the reactivity and thermal properties of the resulting polymer.

Diisocyanates (Polyimide Raw Materials) are key monomers in the synthesis of polyurethanes, polyureas, and polyimides used in functional materials research such as dielectric films, adhesives, and heat-resistant coatings. Materials researchers and polymer chemists utilize structural variations such as xylylene diisocyanate or tolylene diisocyanate to control chain flexibility and thermal stability of the final product. Isomer ratios, for example mixtures of 2,4- and 2,6-tolylene diisocyanate, also determine the characteristics of the polymer formed.

Example products in this collection: TCI X0022 3634-83-1 m-Xylylene Diisocyanate, TCI D0897 101-68-8 Methylenediphenyl 4,4'-Diisocyanate, TCI B1538 38661-72-2 1,3-Bis(isocyanatomethyl)cyclohexane (cis- and trans- mixture), TCI D2051 91-97-4 4,4'-Diisocyanato-3,3'-dimethylbiphenyl, TCI B1509 10224-18-7 2,2-Bis(4-isocyanatophenyl)hexafluoropropane, TCI D2380 5124-30-1 Dicyclohexylmethane 4,4'-Diisocyanate (mixture of isomers), TCI B1442 2778-42-9 1,3-Bis(2-isocyanato-2-propyl)benzene, TCI H1842 3779-63-3 1,3,5-Tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione.

Pay attention to the isomer ratio (for example the ratio of 2,4- to 2,6-) and purity, as both directly affect reaction kinetics and the final properties of the polymer. The physical form, liquid or solid, and the free NCO group content also need to be confirmed to match process requirements. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other sibling categories under Polyimide Raw Materials, often used together in one laboratory workflow:

• Diamines [Polyimide Raw Materials]
• Tetracarboxylic Dianhydrides [Polyimide Raw Materials]

Back to Polyimide Raw Materials. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team, the official distributor of TCI Japan in Indonesia, to check availability and lead time directly from Japan.