Silicone polymer containing siloxane eight-membered ring, its synthesis and application
A cyclic organosilicon and cyclic compound technology, which is used in the preparation of cyclic organosilicon compounds, related cross-linked compounds, ring-containing organosilicon compounds, and ring-containing compounds, and can solve the loss in the cross-linking process and the low content of eight-membered rings. , small molecular weight, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0058] According to the method for preparing a cross-linked body according to the embodiment of the present invention, the ring-containing compound or ring-containing organosilicon compound is synthesized by using the cyclic organosilicon compound containing a disilicon hydrogen bond as a raw material, and then these ring-containing compounds or ring-containing organosilicon compounds are The compound is mixed with the ring-shaped organosilicon small molecule to prepare a solution, and then a ring-opening reaction can be carried out in the presence of a catalyst to prepare a cross-linked body. When the catalyzer is an organic base compound, the catalyzer can be completely decomposed above 130 degrees centigrade, and there is no catalyst residue in the obtained cross-linked body, and the stability and heat resistance are good. Moreover, the preparation method of the cyclic organosilicon compound containing disila-hydrogen bonds is simple, the raw materials are easy to obtain in ...
Embodiment 1
[0102] The method for preparing the cyclic organosilicon compound 1 containing a disilicon hydrogen bond is as follows, wherein the structure of the compound 1 is shown in formula XXXX.
[0103]
[0104] Tetrakis(dimethylsiloxy)silane (CAS 17082-47-2) (0.657 g, 2 mmol), diphenyldimethoxysilane (CAS 6843-66 -9) (0.489 g, 2 mmol) and 20 milliliters of cyclohexane, then add a magneton, and stir at room temperature. Tris(pentafluorophenyl)borane (CAS1109-15-5) (1 mg) was added to the aforementioned solution, followed by stirring at room temperature for 20 minutes, followed by adding 0.3 g of activated carbon to the reaction solution, then filtering, and collecting filtrate. The collected solution was removed by a rotary evaporator to obtain a liquid mixture, and then 0.757 g of a colorless liquid was separated by distillation under reduced pressure, with a yield of 70%. The boiling point is 120°C / 1.5kPa.
[0105] The obtained colorless liquid was detected and analyzed, and t...
Embodiment 2
[0107] The method for preparing the cyclic organosilicon compound 2 containing a disilicon hydrogen bond is as follows, wherein the structure of the compound 2 is shown in formula XXXXI.
[0108]
[0109] In a 200 ml round bottom flask, tetrakis(dimethylsiloxy)silane (CAS 17082-47-2) (0.65 g, 2 mmol), phenylmethyldimethoxysilane (CAS 3027- 21-2) (0.364 grams, 2 mmoles) and 20 milliliters of cyclohexane, then add magneton, and stir at room temperature. Tris(pentafluorophenyl)borane (CAS1109-15-5) (1 mg) was added to the aforementioned solution, followed by stirring at room temperature for 20 minutes, followed by adding 0.3 g of activated carbon to the reaction solution, then filtering, and collecting filtrate. The collected solution was removed by a rotary evaporator to obtain a liquid mixture, and then 0.640 g of a colorless liquid was separated by distillation under reduced pressure, with a yield of 70%. The boiling point is 100°C / 1.5kPa.
[0110] The obtained colorless...
PUM
| Property | Measurement | Unit |
|---|---|---|
| boiling point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More