Product Description
Cosmetic raw material
AI Product Description
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Ammonia Terminal Polydimethylsiloxane (PDMS) represents a specialized class of silicone polymers characterized by reactive amine groups at the chain ends. While specific commercial formulations may vary, these materials are typically synthesized to possess terminal amino functionalities attached to a polydimethylsiloxane backbone. The general molecular formula for the repeating unit is C2H6SiO, but the terminal amine groups modify the overall stoichiometry depending on the degree of polymerization and the specific amine type used, such as methylamino or ethylamino. A representative CAS number often associated with similar amino-functional silicones falls within ranges like 9016-00-6 to 9050-38-4, though exact identification requires verification against specific manufacturer data sheets as "Ammonia Terminal" is a functional description rather than a single unique chemical entity.
These polymers serve critical roles in industrial applications due to their unique combination of hydrophobicity, thermal stability, and chemical reactivity provided by the terminal amines. Primarily, they function as coupling agents and cross-linking modifiers in the production of advanced sealants, adhesives, and coatings. The reactive amine groups facilitate strong chemical bonding with substrates containing moisture or other polar surfaces, significantly enhancing adhesion properties in construction and automotive sectors. Furthermore, they are extensively utilized in the formulation of release agents for rubber and plastic molding processes, providing excellent non-stick characteristics while maintaining high temperature resistance. In the electronics industry, these materials contribute to potting compounds and encapsulants that protect sensitive components from environmental stressors without compromising flexibility. Their low surface tension also makes them effective additives in personal care products, offering conditioning benefits to hair and skin formulations. As a versatile intermediate, Ammonia Terminal PDMS bridges the gap between inert silicones and reactive chemistries, enabling the creation of durable, high-performance materials across diverse manufacturing landscapes.