A kind of polymerizable monomer and its preparation method and application
A technology for polymerizing monomers and intermediates, applied in the field of polymerizable monomers and their preparation, can solve problems such as poor heat resistance and salt resistance, and achieve good stability, high molecular weight, and excellent performance
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preparation example Construction
[0025] The preparation method of polymerizable monomer provided by the invention comprises the following steps:
[0026] (1) Under amidation reaction conditions, the aromatic diamine having the structure shown in formula (II) is contacted with acryloyl chloride to obtain the intermediate M having the structure shown in formula (III);
[0027] Formula (Ⅱ)
[0028] Formula (Ⅲ)
[0029] (2) Under the condensation reaction conditions, the intermediate M is contacted with a dibasic fatty acid having the structure shown in formula (IV);
[0030] HOOC-(CH 2 ) m -COOH formula (Ⅳ)
[0031] Wherein, n is an integer of 1-5, m is an integer of 1-10; preferably, n is 0 or 1, and m is an integer of 4-8.
[0032] For the sake of distinction, in the present invention, the reaction of an acid chloride and an amine to obtain an amide by removing a molecule of HCl is called an amidation reaction, and the reaction of a carboxylic acid and an amine to obtain an amide by removing a molec...
preparation example 1
[0057] This preparation example is used to illustrate the preparation method of the polymerizable monomer provided by the present invention.
[0058] (1) Preparation of intermediates:
[0059] Under stirring, mix 150 ml of xylene and 0.1 mol of p-phenylenediamine evenly, and add 0.1 mol of acryloyl chloride dropwise. After the dropwise addition, raise the temperature to 80°C and reflux for 8 hours to obtain intermediate M1 .
[0060] (2) Preparation of polymerizable monomers:
[0061] Under stirring, mix the intermediate M1 obtained in step (1) with 0.1mol sebacic acid, heat to 110°C for 6 hours, then distill off the solvent and dry at 70°C, and recrystallize the product with acetone solvent , to obtain the polymerizable monomer D1.
[0062] D1 was characterized by infrared spectroscopy, the results are as follows figure 1 shown. Among them, 2859.6cm -1 、2956.0cm -1 Symmetric and asymmetric stretching vibration absorption peaks for methyl and methylene, 1372.6cm -1 、14...
preparation example 2
[0064] This preparation example is used to illustrate the preparation method of the polymerizable monomer provided by the present invention.
[0065] (1) Preparation of intermediates:
[0066] Under stirring, 0.1 mol of p-xylylenediamine and 0.1 mol of acryloyl chloride were uniformly mixed, and heated to 110° C. for reflux reaction for 4 hours to obtain intermediate M2.
[0067] (2) Preparation of polymerizable monomers:
[0068] Under stirring, the intermediate M2 obtained in step (1) was mixed with 150 ml of dichloromethane, and 0.1 mol of sebacic acid was added dropwise, then the temperature was raised to 160°C for 2 hours, and then the solvent was distilled off and placed in the Dry at 70°C, and recrystallize the product with acetone solvent to obtain polymerizable monomer D2. D2 was characterized by infrared spectroscopy, and the results of the infrared spectrum and figure 1 similar.
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Abstract
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