Process for producing compound and process for producing polymer comprising same
A compound and polymer technology, applied in the field of compound preparation, can solve problems such as low yield, inability to recover halogen-containing by-products, environmental pollution, etc.
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[0010] The embodiments of the present disclosure provide a method for preparing a compound. Neither the reaction starting material nor the catalyst used in the preparation method of the compound contains halogen. In addition to avoiding the production of halogen-containing by-products, it is also possible to avoid residual halogen-containing compounds in the obtained product. compound. Therefore, the preparation method of the compound described in the present disclosure does not need to use additional steps to remove halogen-containing by-products or residual halides, can reduce production costs and increase process yield, and obtain halogen-free monomers that can be used in subsequent polymerization processes.
[0011] In addition, embodiments of the present disclosure also provide a method for preparing a polymer (such as polyether sulfone (PES) or polythioether sulfone (PTES)), a method for preparing a monomer of the polymer and The reaction starting materials used in the p...
Embodiment 1
[0086] Take 5 grams of diphenyl ether, 11.7 grams of benzenesulfonic acid and 50 milliliters of dichloromethane, add them into the reaction flask under nitrogen, and cool down to 15°C. Next, 5.54 g of dimethyldisulfane (1,2-dimethyldisulfane) was slowly added into the reaction flask. After reacting at 15° C. for 20 hours, the product was poured into 50 ml of aqueous sodium hydroxide solution (the weight ratio of sodium hydroxide to water was 1:10). After stirring for 0.5 hour, extraction was performed three times with dichloromethane and deionized water. After the organic layer was sucked dry and dehydrated, compound (1) was obtained. The reaction formula of the above reaction is as follows:
[0087]
[0088] Utilize nuclear magnetic resonance spectrum analysis compound (1), the spectral information of gained is as follows:1 H NMR (400MHz, ppm, CDCl 3 ):2.50(-CH 3 ,3H,s),7.00(C 6 h 5 ,4H,m),7.14(C 6 h 5 ,1H,t),7.32-7.41(C 6 h 5 ,4H,m).
Embodiment 2
[0090] 0.73 g of compound (1), 12 ml of aqueous nitric acid solution (concentration: 20%), and 4 ml of acetonitrile were added to the reaction flask. After stirring at room temperature for 4 hours, 10 ml of aqueous sodium hydroxide solution (concentration: 3%) was added to the reaction flask. Then, after the reaction was complete, the resultant was sucked dry and dehydrated to obtain compound (2) (orange powder). The reaction formula of the above reaction is as follows:
[0091]
[0092] Utilize nuclear magnetic resonance spectrum analysis compound (2), the spectral information of gained is as follows: 1 H NMR (400MHz, ppm, CD 3 CO):2.71(-CH 3 ,3H,s),7.10-7.25(C 6 h 5 ,5H,m),7.44-7.48(C 6 h 5 ,2H,t),7.70-7.72(C 6 h 5 , 2H, d).
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