Description

Pss-Dodecaphenyl Substituted CAS NO 18923-59-6 is a specialized organosilicon compound characterized by its unique dodecaphenyl-substituted polysilsesquioxane (PSS) cage structure. This compound matters for its role as a high-performance additive and precursor material, offering enhanced thermal stability, mechanical reinforcement, and tailored surface properties. It is primarily needed by industries focused on advanced material science, including high-temperature polymer composites, specialty coatings, and electronic encapsulants.

Application

• As a functional filler and reinforcing agent in high-performance silicone and epoxy resin composites to improve thermal and mechanical properties.
• As a precursor for hybrid organic-inorganic materials (ORMOSILs) used in protective and optical coatings.
• In the formulation of low-k dielectric materials for advanced semiconductor packaging and microelectronics.
• As a modifier for surface properties, enhancing hydrophobicity, release characteristics, or adhesion in specialized applications.
• For research and development of novel catalyst supports and porous materials due to its well-defined nanostructure.

Basic Information

Product Name	Pss-Dodecaphenyl Substituted CAS NO 18923-59-6
CAS No.	18923-59-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Dodecaphenylsilsesquioxane; Polyhedral Oligomeric Silsesquioxane, Dodecaphenyl substituted; POSS-Dodecaphenyl; Phenyl-POSS; Octaphenylsilsesquioxane (common related structure); T8-Phenyl POSS; Phenyl T8 Silsesquioxane
EINECS	Contact for details

Quality Control

Our Pss-Dodecaphenyl Substituted is produced under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency and purity, including spectroscopic identification and quantitative assay. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%

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