Liquid butylbenzene polymer, preparation method and application thereof, composition, polymer coating, adhesive and cross-linking agent
A technology of polymers and styrene-butadiene, applied in adhesives, adhesive types, conjugated diene adhesives, etc., can solve problems such as temperature sensitivity, high technical difficulty, and large difference in reactivity ratio, and achieve improved thermal expansion Performance, wide application prospects, effect of high peel strength
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[0049] According to a third aspect of the present invention, the present invention provides a method for preparing a liquid styrene-butadiene polymer, the method comprising: under anionic polymerization conditions, 1,3-butadiene and styrene and a structure regulator Contact with an anionic polymerization initiator in a polymerization solvent to obtain a polymerization reaction solution containing a styrene-butadiene polymer. The contact is carried out at a temperature of 85-130° C., and the structure regulator contains component A and component B, so The component A is one or more than two selected from tertiary amines, the component B is one or more than two selected from alkali metal alkoxides, the component B and the component A The molar ratio is 0.1-0.5:1, and the polymerization solvent contains an aliphatic heterocyclic solvent.
[0050] In a preferred embodiment, the component A is one or more than two compounds selected from formula I.
[0051]
[0052] In formula ...
Embodiment 1
[0121] This embodiment is used to illustrate the liquid styrene-butadiene polymer of the present invention and its preparation method.
[0122] (1) Under nitrogen protection, add tetrahydrofuran (THF), structure regulator 1, structure regulator 2, 1,3-butadiene and styrene in 5L reactor (see Table 1 for kind and consumption, table The consumption listed in 1 is all measured with pure compound), the temperature in the control reactor is the polymerization reaction temperature listed in table 1, in the reactor, add the n-butyllithium of design amount (concrete consumption is as shown in table 1, table 1 The consumption listed in is all measured with pure compound); And under the temperature and pressure listed in Table 1, carry out anionic solution polymerization reaction, obtain the polymerization reaction mixed solution containing butylbenzene polymer.
[0123] (2) add water and acid (concrete consumption and the kind of acid are listed in table 2 in the polymerization reactio...
Embodiment 2-13
[0126] Examples 2-13 are used to illustrate the liquid styrene-butadiene polymer of the present invention and its preparation method.
[0127]Embodiment 2-13 adopts the method identical with embodiment 1 to prepare liquid styrene-butadiene polymer, difference is, step (1) reacts at the condition shown in table 1, and step (2) and step (3) are in table 2 Under the conditions shown, the polymerization reaction mixture containing the styrene-butadiene polymer obtained in step (1) is processed, thereby obtaining the composition BS2-BS13 containing the liquid styrene-butadiene polymer according to the present invention respectively, wherein the liquid styrene-butadiene polymer The structural property parameters of the polymers are listed in Table 3.
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