4-vinylpyridine homopolymerized and ethylene copolymerized acenaphthenyl diimido nickel catalyst and the prepn process
A vinylpyridine and acenaphthylene diimide technology is applied in the field of acenaphthylene diimide nickel supported catalyst and its preparation, which can solve the problems of complex preparation, performance and application limitations of the catalyst.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] 1. Preparation of supported catalyst
[0020] 1-1 1.624g nickel complex NiL 1 Cl 2 Dissolve in 20ml of dichloromethane to obtain a homogeneous solution;
[0021] 1-2. Mix 2 g of MgCl 2 Dissolve in the mixed solution of ethanol and THF, and stir evenly to obtain the mother liquor; the dosage is MgCl in molar ratio 2 : Alcohol = 3:1, MgCl 2 :THF=1:(24~40);
[0022] 1-3. In N 2 Under protection, add 4g of SiO pretreated by activation at 400-600°C for 4-6 hours to the mother liquor obtained in 1-2 2 , stirred and reacted for 3 hours, heated and drained the liquid; that is, SiO 2 -MgCl 2 Composite carrier;
[0023] 1-4. Add 8ml of hexane to the product of 1-3, raise the temperature to 50-60°C, and add the nickel complex NiL prepared in 1-1 under stirring condition 1 Cl 2 solution, reacted for 1.5h, filtered, washed three times with dichloromethane, and vacuum-dried to obtain a solid-loaded procatalyst; the amount of dichloromethane was per gram of SiO 2 Add 5-12m...
Embodiment 2
[0031] In embodiment 1 step 1-1 " 1.624g nickel complex NiL 1 Cl 2 Dissolved in 20ml of dichloromethane "change" to "1.486gNiL 2 Cl 2 Dissolved in 20ml of dichloromethane"; all the other conditions and operations are the same as in Example 1. The prepared catalyst is used for the polymerization reaction under the same conditions as in Example 1.
[0032]Under the above conditions, P4-VP was prepared by homopolymerization, the catalytic efficiency was 43.4kg P4-VP / mol Ni·h, and the conversion rate of 4-VP was 75.7%. P(E-4-VP) was prepared by copolymerization reaction, the catalytic efficiency was 32.5kg P(E-4-VP) / mol Ni·h, and the 4-VP content in the copolymer was 3.3%.
Embodiment 3
[0034] In embodiment 1 step 1-1 " 1.624g nickel complex NiL 1 Cl 2 Dissolved in 20ml of dichloromethane "change" to "1.486gNiL 3 Cl 2 Dissolved in 20ml of dichloromethane"; all the other conditions and operations are the same as in Example 1. The prepared catalyst is used for the polymerization reaction under the same conditions as in Example 1.
[0035] Under the above conditions, P4-VP was prepared by homopolymerization, the catalyst efficiency was 45.4kg P4-VP / mol Ni·h, and the conversion rate of 4-VP was 70.5%. P(E-4-VP) was prepared by copolymerization reaction, the catalytic efficiency was 28.5kg P(E-4-VP) / mol Ni·h, and the 4-VP content in the copolymer was 4.1%.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More