Description

Siloxanes And Silicones, Di-Me, Polymers With Ph Silsesquioxanes, Butoxy- And Methoxy-Terminated is a specialized organosilicon copolymer that combines the flexibility of polydimethylsiloxane (PDMS) with the enhanced thermal and mechanical stability imparted by phenyl silsesquioxane (Ph-SSQ) cage structures. This unique hybrid architecture is engineered to deliver superior performance as a reactive intermediate or additive in high-performance materials. It is particularly valuable for industries requiring advanced coatings, adhesives, and composite materials with exceptional durability and resistance to extreme environments.

Application

• As a key reactive component in the formulation of high-temperature resistant silicone resins and coatings for aerospace and automotive applications.
• As a performance-enhancing additive in specialty adhesives and sealants to improve thermal stability, flexibility, and adhesion to diverse substrates.
• As a modifier or cross-linking agent in the production of advanced composite materials, including those used in electronics encapsulation and under-the-hood components.
• In the synthesis of hybrid organic-inorganic materials (Ormosils) for optical, electronic, or protective coating applications.
• As a precursor for developing release coatings and mold-making materials that require precise surface properties and thermal endurance.
• In research and development for novel polymer systems where tailored siloxane-silsesquioxane copolymers are needed.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, Polymers With Ph Silsesquioxanes, Butoxy- And Methoxy-Terminated
CAS No.	104780-72-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Variable, polymer)
Synonyms	Poly(dimethylsiloxane-co-phenylsilsesquioxane), butoxy/methoxy terminated; Phenyl T8 Silsesquioxane-Dimethylsiloxane Copolymer; PDMS-Ph-POSS Copolymer; Methoxy- and Butoxy-Terminated Polydimethylsiloxane-Phenylsilsesquioxane; Siloxane-silsesquioxane hybrid polymer; Organosiloxane copolymer with phenyl-POSS; Reactive silicone-POSS hybrid oligomer
EINECS	Contact for details

Quality Control

Our production of this advanced silicone copolymer adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as molecular weight distribution, functional group content, and viscosity are strictly monitored. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with each shipment to support your quality assurance and R&D 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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect reactivity and properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Contact for details
Solid Content	Contact for details
Methoxy & Butoxy Content	Contact for details
Phenyl Content (from Silsesquioxane)	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.