Fatty group polyamidoimide, its preparation method and its application
A polyamide-imide and aliphatic technology, which is applied in the field of preparation of polymer compounds, can solve the problems of difficult processing and molding, high rigidity, etc., and achieves the effects of simple and mild synthesis process, improved softness and solubility, and rich sources.
Inactive Publication Date: 2011-11-16
SHAOXING UNIVERSITY
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Problems solved by technology
However, the rigidity of their molecular chains is too large, and there are strong interactions between molecules, so that aromatic polyamide-imides are often neither dissolved nor melted, making it difficult to process and shape
Method used
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Experimental program
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Effect test
Embodiment 1
[0033] According to the molar ratio of reactant HDI and CA 3:2, weigh CA 1.9214 g, HDI 2.400 ml, add DMAc solvent 30.0 ml, add catalyst 4-dimethylaminopyridine 0.0126 g at 60 o C temperature was reacted for 12 hours, and the product was precipitated and filtered with a mixture of 45 ml of water and 15 ml of ethanol, and at 60 o After drying in a C oven for 12 hours, a solid soluble polyamide-imide was obtained. Yield 69%.
Embodiment 2
[0035] Method is the same as Example 1, but the reaction time is 6 hours. Yield 79%.
Embodiment 3
[0037] Method is with embodiment 2, but does not add catalyzer, and temperature of reaction is 70 o c. Yield 78%.
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Abstract
The invention discloses a fatty group polyamidoimide, a preparation method and an application, which belongs to the technical field of preparation of high molecular compound. The structural formula is shown in a formula 1, formula 1, the fatty group polyamidoimide prepared by the invention has the advantage of good solubility, and enables a complete solution in an organic solvent NMP, DMF, DMAc or DMSO after being heated to the temperature of 60 DEG C, wherein the solubility is 6g / 100 mL, and the insufficient aspects of indissoluble and difficult processing of aromatic PAI can be overcomed. According to the invention, the obtained fatty group polyamidoimide is hydrolyzed to obtain a polymer containing carboxyl capable of effectively chelating metallic lead ions in water, wherein the adsorption quantity can reach to 580.2 mgPb 2<+> / g.
Description
Technical field: [0001] The invention relates to an aliphatic polyamide-imide and its preparation method and application, and belongs to the technical field of preparation of polymer compounds. technical background: [0002] Polyamide-imide (PAI) is an engineering resin, which is characterized by having both rigid imide groups and flexible amide groups in the traditional PAI molecule, and contains a very stable aromatic ring structure, which has excellent Excellent heat resistance, low temperature resistance, dielectric properties, mechanical properties and chemical stability, in addition, in high temperature environment, PAI also has excellent mechanical properties and dimensional stability, excellent wear resistance and friction properties, outstanding anti- Ultraviolet performance, superior resistance to high-energy radiation, and inherently low flammability, it is an engineering material with excellent performance and can be widely used in many fields. [0003] The main...
Claims
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IPC IPC(8): C08G73/14B01J20/26B01J20/30C02F1/28C02F1/62
Inventor 董坚王赛昌白君笑陈光松
Owner SHAOXING UNIVERSITY
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