Olefin block copolymer and sheet-shaped molded body
A technology of block copolymer and olefin block, which is applied in the field of sheet-shaped molded body, and can solve the problems of unfavorable heat resistance and limited use.
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preparation example Construction
[0071] In the preparation method for the block copolymer, the transition metal compound contained in the catalyst composition as a ligand obtained by the compound of chemical formula 1 preferably participates in polymerization and couples with ethylene or propylene to form a rigid segment, while chemical formula 2 The compounds are mainly involved in polymerization and coupling with α-olefin monomers to form soft segments. Thus, the use of the catalyst composition results in those two catalysts alternately forming a rigid segment with a low content of α-olefin repeating units and a soft segment with a high content of α-olefin repeating units, thus providing Olefin block copolymers with a higher block degree. Such an olefin block copolymer particularly satisfies the relationship as given in Mathematical Formula 1 described above, and thus is excellent in elasticity and heat resistance, and has improved processability. Thus, block copolymers make it possible to provide olefin-...
Embodiment
[0125] Hereinafter, some examples will be given for better understanding of the present invention, but the following examples are provided for illustrative purposes only, and the scope of the present invention should not be construed as being limited thereto.
[0126] In the following examples, the organic reagents and solvents used here were purchased from Aldrich Chemical Co., Ltd. and Merck Chemicals, and purified according to standard methods. During all synthetic steps, avoid contact with air and water to improve the reproducibility of the experiment. In order to confirm the structures of the chemicals, 400 MHz nuclear magnetic resonance (NMR) and X-ray spectrometers were used to obtain respective spectra and diagrams.
[0127] The term "overnight" as used herein refers to about 12 to 16 hours, and the term "room temperature" as used herein refers to a temperature of 20 to 25°C. All synthesis of transition metal compounds and preparation of experiments were carried out u...
preparation Embodiment 1
[0128] Preparation Example 1: Preparation of (E)-N-((1,2,3,4-tetrahydroquinolin-8-yl)methylene)-2-methylcyclohexylamine prepare
[0129] 1.06 g of tetrahydroquinolino aldehyde was dissolved in 17 mL of methanol, and 1.3 mL of 2-methylcyclohexylamine was slowly added. After stirring overnight at room temperature, the resulting solution was freed of solvent under reduced pressure, then redissolved in hexane to make a viscous solution, which was stored in a refrigerator. This solution contained the two stereoisomeric products in a ratio of approximately 1.5:1. After about 2 days, a white crystalline solid appeared in solution. The same procedure was followed for the remaining stock solution to collect the solid, wash with cold methanol and hexane and dry to give the pure stereoisomeric product (yield: 50%).
[0130] 1H NMR (500MHz, d-toluene): 0.83(d, J=7Hz, 3H, CH 3 ),0.95-1.01(m,1H,CH),1.20-1.29(m,2H,CH 2 ),1.52-1.71(m,8H,CH 2 ),2.09-2.10(m,d-tol),2.38-2.43(m,1H,CH),2....
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Abstract
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