Description

Silsesquioxanes, Me 2,4,4-Trimethylpentyl, Methoxy-Terminated is a specialized organosilicon compound belonging to the polyhedral oligomeric silsesquioxane (POSS) family, featuring a unique hybrid organic-inorganic cage structure. This material matters for its ability to act as a molecular-level additive, imparting enhanced thermal stability, mechanical reinforcement, and improved surface properties to polymer matrices and coatings without sacrificing processability. Industries such as advanced composites, high-performance coatings, and specialty adhesives require this product to develop next-generation materials with superior performance characteristics. Its methoxy-terminated groups provide reactive sites for further chemical modification and integration.

Application

• As a nanoscale reinforcing filler in epoxy, silicone, and polyimide resins for aerospace and automotive composites.
• As a surface modification agent to enhance hydrophobicity, scratch resistance, and weatherability in protective and optical coatings.
• As a reactive precursor for synthesizing hybrid organic-inorganic polymers (ORMOSILs) with tailored properties.
• As a compatibilizer and property enhancer in engineering plastics to improve thermal oxidative stability and reduce flammability.
• In the formulation of high-temperature resistant adhesives and sealants for electronic and industrial applications.
• For research and development of novel nanostructured materials in academic and industrial laboratories.

Basic Information

Product Name	Silsesquioxanes, Me 2,4,4-Trimethylpentyl, Methoxy-Terminated
CAS No.	107712-67-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Methoxy-Terminated Isooctyl Silsesquioxane; Methoxy-Functionalized POSS Cage with 2,4,4-Trimethylpentyl Groups; Isooctyl POSS, Methoxy-Terminated; Polyhedral Oligomeric Silsesquioxane with Isooctyl and Methoxy Substituents; Methoxy(2,4,4-trimethylpentyl)silsesquioxane; POSS Methoxy Isooctyl Derivative; T8-(2,4,4-Trimethylpentyl)7(Methoxy)1 Silsesquioxane
EINECS	Contact for details

Quality Control

Our Silsesquioxanes, Me 2,4,4-Trimethylpentyl, Methoxy-Terminated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including NMR, FT-IR, and GPC/SEC, to ensure consistent chemical structure, purity, and functionality. Certificates of Analysis (COA) detailing batch-specific results are available upon request. We support our global B2B clients with the documentation necessary for their quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Under these conditions, the material should be kept in its original, unopened packaging until use to prevent moisture uptake and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (NMR)	≥ 95%
Methoxy Content	Contact for details
Volatile Matter	≤ 2.0%

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