Description

Pss-Vinyl-Heptaisobutyl Substituted CAS NO 444315-18-8 is a specialized organosilicon compound, specifically a polyhedral oligomeric silsesquioxane (POSS) derivative featuring a vinyl group and seven isobutyl substituents. This unique hybrid structure, combining an inorganic silica-like core with organic functional groups, is engineered to enhance the thermal, mechanical, and surface properties of polymeric materials. It serves as a critical performance additive for advanced material scientists and R&D engineers in the polymer, coatings, and specialty chemical industries seeking to develop high-performance composites.

Application

• Polymer Nanocomposites: Acts as a nano-reinforcing filler to improve thermal stability, mechanical strength, and reduce flammability in thermoplastics and thermosets like polyolefins, epoxies, and acrylics.
• Specialty Coatings & Resins: Imparts enhanced scratch resistance, surface hardness, and hydrophobicity to high-performance industrial, automotive, and electronic coatings.
• Adhesives & Sealants: Used to modify rheology, enhance thermal resistance, and improve the durability of silicone-based and other high-temperature adhesive formulations.
• Advanced Elastomers: Incorporated into silicone rubber and other elastomers to reduce gas permeability and improve aging characteristics.
• Optical & Electronic Materials: Serves as a building block for organic-inorganic hybrid materials used in LED encapsulants, waveguides, and low-k dielectric films.
• Biomedical Materials: Potential use in developing biocompatible polymer matrices for controlled drug delivery systems and dental materials due to its inert silica-like core.

Basic Information

Product Name	Pss-Vinyl-Heptaisobutyl Substituted
CAS No.	444315-18-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Vinylheptaisobutyl-POSS; Heptaisobutyl Vinylsilsesquioxane; Vinyl-POSS Cage Mixture; 1-Vinyl-3,5,7,9,11,13,15-Heptaisobutylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane; POSS Vinyl Derivative; Octavinyl-POSS (partial substitution analog); Hybrid Organic-Inorganic Siloxane; Polyhedral Oligomeric Vinylsilsesquioxane
EINECS	Contact for details

Quality Control

Our Pss-Vinyl-Heptaisobutyl Substituted is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including NMR (1H, 29Si), FT-IR, and HPLC, to ensure consistent chemical structure, high purity, and batch-to-batch reliability. Certificates of Analysis (COA) detailing specific results are provided with every shipment. We adhere to relevant ISO 9001 standards to guarantee product integrity for your critical R&D and production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and potential degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical)
Vinyl Content	As per COA
Loss on Drying	≤ 2.0 %
Residue on Ignition	As per COA

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.