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Side-chain silicon-containing polyimides have less research than main-chain silicon-containing polyimides. The polyimide containing silicon on the side chain is mainly obtained by polymerizing dianhydrides or diamines with hydroxyl groups to obtain polyimides with antelope groups, and then reacting with hydrogen radicals to obtain polyimides with siloxane side chains. Polyimide. Or first synthesize an active diamine monomer that does not contain an active group at one end and contains two amino ...
Product Name: Silicone Resin Item No.: SilibaseSR-X1180Chemical Name: Methyl Phenyl Silicone ResinProduct Category: High temperature resin seriesTYPICAL APPLICATIONSHeat- stable coatings for industrial facilities Protective coatingsOvens, furnaces, pipelines, incineratorsIt CAN BE USED FOR SILENCER, EXHAUST PIPE, ENGINE parts, boiler, oven, chimney pipe, picnic Cookware, electric heating or gas stove, incinerator, etc.400℃ white paint formulaSilibaseSR-X1180 Silicone Resin26Flow ...
Silane coupling agent terminated polyimide. This method is to use silane compounds (mainly silane coupling agents containing amino functional groups) to block polyimide, where all are tetravalent organic groups; R2, a divalent organic group; X is a monovalent group, such as - OR, halogen, etc.Due to the ease of hydrolysis of the - Si brother group into the - SiOH group The hydrogen bonds formed between - OH in SiOH and inorganic surfaces (such as glass, ceramics, metals, etc.) have a certain aff ...
A series of homopolymerized and copolymerized polyimides were synthesized from BPDA, bis (3,4-disunaphenyl) dimethylsilanedianhydride (S-core A) and diphenyltyrenediamine (ODA), and their gas permeability was studied. The permeability coefficient of S-core A-ODA is about a few steps higher than that of BPDA-ODA, but the permeability selectivity is slightly lower. In order to balance breathability and selectivity, they synthesized a series of (BPDA SiDA) - ODA random copolymers. With the increase ...
Polyimide synthesized from organosilicon monomer with amino groups at both ends. The most commonly used organosilicon monomers of this type are bis (3-aminopropyl) tetramethyldisiloxane and a'w - bis (aminopropyl) polydimethylsiloxane. The siloxane modified polyamide acid was prepared by two different methods, in the mixed solvent of N, N-neneneba dimethylacetamide (DMAc) and tetrahydrofuran (THF) or N-methylpyrrolivanone (NMP) and THF, using benzophenone dianhydride (CBTDA) and aminopropyl term ...
BAPTDS can extend its chain with octamethylcyclotetrasiloxane (04) under the catalysis of acid or base or heating to obtain PSX. PSX can be used as a soft segment during use. Copolymerization reaction with other dianhydride or diamines. Polymers with high temperature and mechanical properties can be prepared. The effects of different lengths of polysiloxane (PSX) chains and changing the content of PSX in the copolymer on the mechanical properties, thermal properties, and solubility of its copoly ...
The synthesis process of polysiloxane imine block copolymers is as follows:Physical blending: In the field of silicone modified PI, there is more research on copolymerization modification than physical blending. The organic silicon components used for blending modification are usually modified. Used in the field of PI blending: silicone Imide copolymer, silicone carbonate copolymer, silicone Imide copolymer, etc. Mixing these copolymers with polyimide in a certain proportion can improve the surf ...
Product Name: Silicone ResinItem No.: SilibaseSR-6033Features:Use as a binder for inorganic materials, to produce molded pieces with outstanding hea resistance and flame retardancy; When burned, little mass is lost, and heating produces very little smoke. The resin is flame retardant and nearly incombustible;Good adhesion to mica and other inorganic materials.Main Specifications:Exterior: Colorless to pale yellow, transparent, solidSolubility in Toluene (150℃, 1h): Clear and transparentSoftenin ...
Polyimide siloxane was first synthesized in 1966. Then, thermoplastic polyimide siloxane was synthesized by the same method and successfully used as a high-strength adhesive and molding compound. The study of silicon containing polyimides shows that the introduction of flexible siloxane blocks into the polyimide skeleton can produce soluble copolymers with better processability, heat resistance, weather resistance and mechanical properties. Due to the preferential migration of siloxane segments ...
Because of the particularity of micro lotion polymerization mechanism and the diversity of polymerization methods, it has become one of the hot areas of lotion polymerization research. The silicone modified acrylate micro lotion was synthesized by continuous lotion polymerization. The effects of polymerization conditions, silicone and polymer concentration on the synthesis of silicone acrylate micro lotion were discussed. The results showed that when the ratio of emulsifier SDS/TMS was 4:1, the ...