Modified allyl compound, modified bismaleimide prepolymer and application thereof
A technology of allyl compound and bismaleimide, which is applied in non-polymer organic compound adhesives, unsaturated alcohol copolymer adhesives, organic chemistry, etc. Increased electrical constant and dielectric loss, poor heat resistance of cured products, etc., to achieve the effects of reducing water absorption, improving heat resistance, and improving solubility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0054] Further, the above-mentioned preparation method of the modified allyl compound includes the following steps S10-S30.
[0055] Step S10, performing a grafting reaction of compound 1 and compound 2 under the action of a first catalyst to obtain a first intermediate.
[0056] In some embodiments, the first catalyst is selected from one or more of boron trifluoride ether, boron trichloride ether, boron trifluoride dimethyl ether and boron trifluoride ethylenediamine.
[0057] In some of these embodiments, in step S10, the molar ratio of compound 1 and compound 2 is (1˜2)1.
[0058] In some of these embodiments, compound 1 is selected from phenol, or any one of phenols substituted by linear alkyl groups with 1 to 7 carbon atoms.
[0059] In some of these embodiments, compound 2 is selected from dicyclopentadiene or tricyclopentadiene.
[0060] In some of these embodiments, the above step S10 includes steps S11-S12.
[0061] Step S11, mixing compound 1 and the first cataly...
Synthetic example 1
[0150] 1), under a nitrogen atmosphere, add 2mol phenol into a four-necked flask equipped with a dropping funnel, a condenser, a stirrer and a thermometer, raise the temperature to 100°C, add 10g of catalyst (boron trifluoride ether), and then drop Add 1mol DCDP, control the rate of addition, and finish adding DCDP within 5 hours. Then keep warm for 2 hours and cool to room temperature, remove phenol and unreacted DCPD by distillation under reduced pressure, add solvent butanone after washing with water, remove solvent and part of water by filtration and distillation, then pour out the residue and cool to obtain DCPD phenol Resin, the product is ready for use, and the structure is as follows;
[0151]
[0152] 2) Under a nitrogen atmosphere, put 1 mol of 4-allyloxybenzoic acid and 1 mol of thionyl chloride into a three-necked flask filled with toluene, and reflux at 60° C. for 5 h until the solution becomes clear. After the reaction was completed, excess toluene and thiony...
Synthetic example 2
[0157] 1), under a nitrogen atmosphere, add 2mol phenol into a four-necked flask equipped with a dropping funnel, a condenser, a stirrer and a thermometer, raise the temperature to 100°C, add 15g of catalyst (boron trifluoride ether), and then drop Add 1 mol compound TCPD, control the dropping rate, and finish adding compound TCPD dropwise within 5 hours. Then keep warm for 2 hours and cool to room temperature, remove phenol and unreacted compound TCPD by vacuum distillation, add solvent butanone after washing with water, remove solvent and part of water by filtration and distillation, then pour out the residue and cool to obtain No. An intermediate, the product is ready for use, and the structure is as follows;
[0158]
[0159] 2) Under a nitrogen atmosphere, put 1 mol of 4-allyloxybenzoic acid and 1 mol of thionyl chloride into a three-necked flask filled with toluene, and reflux at 60° C. for 5 h until the solution becomes clear. After the reaction was completed, exces...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More