A kind of 1-butene/norbornene copolymer and preparation method thereof
A norbornene and copolymer technology, applied in the field of 1-butene/norbornene copolymer and its preparation, can solve problems such as inability to crystallize from a melt to form a crystal form
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Embodiment 1
[0035] The polymer structure (III) consists of a 1-butene repeating unit having the structure of formula (I) and a norbornene repeating unit having the structure of formula (II);
[0036]
[0037] The ethyl branch of the butene segment of the 1-butene / norbornene copolymer is on the same side.
[0038] The 1-butene / norbornene copolymer was prepared by the following method:
[0039] Under anhydrous and oxygen-free conditions, 1-butene gas with a pressure of 8 MPa was introduced into the reactor; 0.4 mmol of norbornene was added, and 150 ml of toluene was added as a solvent, and the stirring was started to make 1-butene and norbornene The monomers are thoroughly mixed in toluene; then the chain transfer agent ethylaluminoxane is added to the system in an amount of 150 times the amount of the metal complex catalyst substance, the temperature is raised to 20° C., and the metal complex catalyst and cocatalyst are added. Under the action of a metal catalyst system, the polymeriza...
Embodiment 2
[0045] In the butene / norbornene copolymer of the present embodiment, the polymer structure (III) is composed of a 1-butene repeating unit having the structure of formula (I) and a norbornene repeating unit having the structure of formula (II);
[0046]
[0047] The ethyl branch of the butene segment of the butene norbornene copolymer is on the same side.
[0048] The butene norbornene copolymer is prepared by the following method:
[0049] Under anhydrous and oxygen-free conditions, 1-butene gas with a pressure of 0.1 MPa was introduced into the reactor, 0.8 mmol of norbornene was added, 60 ml of toluene was added as a solvent, and the stirring was started to make 1-butene and norbornene The alkenes were mixed well in toluene. Then, the chain transfer agent triisobutylaluminum in an amount of 100 times the amount of the metal complex catalyst substance was added to the system, the temperature was raised to 30° C., and the metal complex catalyst and co-catalyst were added. ...
Embodiment 3
[0055] In the 1-butene / norbornene copolymer of the present embodiment, the polymer structure (III) is composed of a 1-butene repeating unit having the structure of formula (I) and a norbornene repeating unit having the structure of formula (II) ;
[0056]
[0057] The ethyl branch of the butene segment of the 1-butene norbornene copolymer is on the same side.
[0058] The 1-butene / norbornene copolymer was prepared by the following method:
[0059] Under anhydrous and oxygen-free conditions, 1-butene gas with a pressure of 0.4 MPa was continuously fed into the reactor, 1.6 mmol of norbornene was added, and 40 ml of toluene was added as a solvent, and stirring was started to make 1-butene and norbornene The bornene was mixed well in toluene. Then, the chain transfer agent triisobutylaluminum in the amount of 20 times the amount of the metal complex catalyst substance was added to the system, the temperature was raised to 25° C., and the metal complex catalyst and the cocata...
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