Ternary random copolymer containing beta-myrcene, preparation method and applications thereof

A technology of random copolymer and myrcene, which is applied in the field of ternary random copolymer and its preparation, can solve the problems of rare types of polar monomers in anionic living polymerization, low functional group content, complicated process, etc., and achieve guaranteed Ideal cross-linked network, abundant sources, and simple process

Inactive Publication Date: 2019-09-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The types of polar monomers suitable for these methods that can meet the needs of anionic living polymerization are extremely rare, and all of them can only be obtained through complicated synthesis processes. In addition, the content of introduced functional groups is not high.
Therefore, whether it is end group functionalization or chain functionalization, the existing functionalization technologies have many problems such as complex process, low efficiency, and high cost.

Method used

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  • Ternary random copolymer containing beta-myrcene, preparation method and applications thereof
  • Ternary random copolymer containing beta-myrcene, preparation method and applications thereof
  • Ternary random copolymer containing beta-myrcene, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 3

[0065] The preparation of embodiment 1 ternary random copolymer

[0066] 1 # β-Myrcene-Styrene-Butadiene Terpolymer Random Copolymer

[0067] Add 1L of cyclohexane, 30g of styrene, 10g of β-myrcene, 60g of butadiene and 0.47mmol of tetrahydrofurfuryl alcohol ethyl ether solution into a reaction kettle filled with nitrogen, and add 0.58mmol of secondary For butyllithium, set the temperature at 50°C. After 1 hour of reaction, add the polymerization liquid in the reactor to absolute ethanol through a rubber tube to terminate, and stir to make it flocculate to form a precipitate. Leave it for 1 hour. After the precipitation is complete, Dry in a vacuum oven at 50°C to obtain β-myrcene-styrene-butadiene terpolymer random copolymer, denoted as 1 # sample.

[0068] 2 # β-Myrcene-Styrene-Butadiene Terpolymer Random Copolymer

[0069] Preparation process and 1 # The β-myrcene-styrene-butadiene terpolymer random copolymers are roughly the same, except that the mass of β-myrcen...

Embodiment 2

[0094] Embodiment 2 The preparation of rubber composition and vulcanized rubber thereof

[0095] With the 1 prepared in embodiment 1 # ~14 # The ternary random copolymer sample is a polymer component, and auxiliary components such as a reinforcing agent, a vulcanizing agent, a vulcanization activator, a vulcanization accelerator, and an anti-aging agent are added respectively to prepare a rubber composition. The rubber composition was mixed on an open mill and vulcanized on a flat vulcanizer to obtain a vulcanized rubber sample.

[0096] with 1 # ~5 # The ternary random copolymer sample is typical, and it is mixed and vulcanized. The process is as follows:

[0097] for 1 # ~3 # Ternary random copolymer sample, get 100g respectively and pass 10 times with small roller distance (0.5mm) on the two-roller open mill, then relax the roller distance (1mm) for mixing, first add 25g of carbon black and mix evenly, then Add 2g of stearic acid, 4g of zinc oxide, and then add the r...

experiment example 1

[0104] Structural characterization of experimental example 1 random copolymer

[0105] Adopt the AV-600 (BRUKER) type tester that Germany Bruker Company produces to test and obtain polymer 1 H NMR. With the 1 prepared in embodiment 1 # ~3 # Terpolymer samples are typical, figure 2 gives 1 in # ~3 # D1 in sample and comparative example 1 # The hydrogen-nuclear magnetic spectrum of the sample, and the copolymer structure composition is calculated according to the characteristic hydrogen area ratio. Depend on figure 2 The characterization results show that the comparative example D1 # In the sample, the styrene content is 30wt.%, butadiene content is 70wt.%, and there is no absorption peak at 6.2-6.8ppm simultaneously, indicating that the resulting product is a binary random copolymer; Example 1 # The styrene content in the medium is 30wt.%, the myrcene content is 10wt.%, and the butadiene content is 60wt.%; 2 # The styrene content in the medium is 30wt.%, the myrcene...

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Abstract

The invention provides a ternary random copolymer containing beta-myrcene, a preparation method and applications thereof, and relate to the field of synthetic rubbers, wherein the ternary random copolymer containing beta-myrcene comprises a beta-myrcene structure unit, a styrene structure unit and a butadiene structure unit, and has a structure represented by a formula (I), the beta-myrcene structure unit accounts for 5-70 wt% of the ternary random copolymer, and the copolymer is prepared by copolymerizing a bio-based monomer beta-myrcene, styrene and butadiene anions. According to the present invention, the method has characteristics of simple process, high efficiency, low cost, high functionalization degree and good industrial adaptability, and can achieve the efficient and precise control of the composition and the structure of random copolymers; and the long branch chain, the carbon particles and other fillers contained in the product have good adhesion, and can significantly improve the dispersibility of the carbon black, and the vulcanized rubber prepared by using the copolymer has characteristics of high wet-skid resistance, low rolling resistance and the like, and is a novel environmental protection and energy saving tread rubber.

Description

technical field [0001] The invention relates to the field of synthetic rubber, in particular to a ternary random copolymer containing β-myrcene, a preparation method and application thereof. Background technique [0002] Solution-polymerized styrene-butadiene rubber occupies a very important position in synthetic rubber and has a wide range of applications. Due to the low molecular polarity of this type of rubber, it is difficult for filler particles such as carbon black and white carbon black with high active surface used for rubber reinforcement to disperse evenly in the matrix, which affects the wet skid resistance, rolling resistance, and raw material properties of the rubber. thermal performance. In order to improve the dispersion of fillers, this type of rubber needs to be functionalized, that is, to introduce various polar functional groups to the rubber molecules through various chemical methods. [0003] According to the position of functional group introduction, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F236/10C08F212/08C08F236/22C08L15/00C08L47/00C08K3/04C08K5/09C08K3/22C08K13/02
CPCC08F236/10C08F236/22C08K3/04C08K3/22C08K5/09C08K13/02C08K2003/2296C08F212/08C08L15/00
Inventor 鲁建民张经纬苏珂韩丙勇
Owner BEIJING UNIV OF CHEM TECH
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