Silicone Materials
Silicones
Silicone polymers display a unique combination of physical and chemical properties compared to homologous carbon-based polymers due to the exceptional physicochemical properties of the siloxane (-Si-O-) bond. Silicone containing copolymers and silicone-modified networks have extremely high backbone flexibility and very low glass transition temperatures (Tg), around −120 °C, good thermal and oxidative stability, high gas permeability, excellent dielectric properties and biocompatibility, and very low surface tension.
Silicone Materials
Our silicone (polysiloxane) polymers can be classified as fluids, elastomers, and resins. Polymers of moderate molecular weight are fluids, while slightly cross-linked polymers with high molecular weight are elastomeric. Low molecular weight resins contain functional groups, usually hydroxyl, alkoxy, or chloro groups, that undergo hydrolysis and/or condensation to form highly cross-linked structures.
Common applications of our silicone materials include:
- elastomeric silicones, such as poly(dimethylsiloxane) (PDMS), for patterned stamps in soft lithography and nano-pattering applications
- dielectric materials for electrostatic actuators and dielectric energy harvesters
- encapsulation and packaging materials for electronic devices
- surface property modifying reagents for microfluidic applications
Polysiloxanes - Copolymers and Homopolymers
Polysiloxanes are silicones that contains silicon-oxygen as the backbone with organic groups. They can form a hydrophobic surface with low water uptake and are mainly used in the preparation of lubricants, foams, and polymeric adhesives.
Our polysiloxanes are available with:
- non-reactive substitutes that tune the mechanical and thermal mechanical properties (such as glass transition temperature)
- reactive substitutes and terminal groups to allow chemical modification (such as crosslinking)
- different molecular weights and viscosity levels.
Siloxanes - Silicone Oil
Our silicone oils (siloxanes) are thermodynamically more stable due to highly polarized Si‐O‐Si bond with large bond energy. They demonstrate greater structural flexibility, permeability, and lubricity due to freely rotating methyl groups as well as weak intermolecular attractive forces. Furthermore, they have excellent wetting and film-forming properties due to lower surface tension and are odorless, non‐toxic, water-repellent, chemical-resistant, and UV-resistant.
We offer a wide range of silicone oil with various degrees of viscosity, spanning from 5 c St (or 5 mPa∙s) to 100,000 c St (or 100,000 mPa∙s) at 25 ˚C. Our silicone oils are used as heating and cooling fluids in thermal management. When used in water/oil systems, our siloxanes generate stable emulsions of microdroplets, which are widely used in DNA and blood analysis, chemical reactions, drug discovery, ink formulation, cosmetics, textiles, and home care products.
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