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Polyvinyl pyrrolidine imine high-molecular compound, and preparation method and applications thereof

A technology of polyvinylpyrrolidineimino polymer and polyvinylpyrrolidone, which is applied in the field of polyvinylpyrrolidineimide polymer compound and its preparation and application, can solve the problems of reducing the catalytic activity of the catalyst and limiting the catalytic performance of the catalyst, and achieves Ease of industrial production, simple method, and low cost of raw materials

Inactive Publication Date: 2017-03-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing chemicals in the market are generally divided into non-ionic, cationic, and anionic types. Commonly, these chemicals have a series of homopolymers, copolymers, and cross-linked polymers with a relative molecular mass ranging from several thousand to more than one million, and various The series of products have been widely used in the fields of medicine, food, cosmetics, detergents, polymer surfactants, catalyst preparation and other fields due to their unique properties, especially in the field of catalyst preparation. This chemical has been used as a common stabilizer or end-capping agent to prepare various catalysts, but the chemical exists on the surface of the catalyst and covers the catalytic active sites of some catalysts, thereby reducing the catalytic activity of the catalyst and limiting the catalytic performance of the catalyst

Method used

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specific Embodiment approach 1

[0020] Specific embodiment one: this embodiment is a polyvinylpyrrolidine imine polymer compound, its structural formula is n is a positive integer.

specific Embodiment approach 2

[0021] Specific embodiment two: this embodiment is the preparation method of polyvinylpyrrolidine imine polymer compound in specific embodiment one, and specific steps are as follows:

[0022] 1. Add polyvinylpyrrolidone and 1,3-butanediol into the two-necked flask, heat the two-necked flask to 170°C under the condition of magnetic stirring, and then reflux for 10min under the condition of magnetic stirring and temperature of 170°C; The volume ratio of the amount of polyvinylpyrrolidone to 1,3-butanediol is 1mmol:(16~17)mL; the opening that is not connected with the reflux tube in the two-necked flask is set as an open opening during reflux, and the reflux tube is not connected. The opening connected with the two-necked flask is an open setting;

[0023] Two, add concentrated ammoniacal liquor in the two-necked flask of reflux 10min in step 1, stopper respectively the opening that is not connected with reflux pipe and the opening that reflux pipe is not connected with two-neck...

specific Embodiment approach 3

[0024] 3. The product in the two-necked flask after cooling in step 2 is distilled under reduced pressure at a temperature of 180°C to 190°C and a pressure of 0.03MPa to 0.06MPa until there is no more effluent, and the yellow substance is obtained. Polyvinylpyrrolidine imide compound. Embodiment 3: The difference between this embodiment and Embodiment 2 is that the volume ratio of the amount of polyvinylpyrrolidone described in step 1 to 1,3-butanediol is 1 mmol: 16.7 mL. Others are the same as in the second embodiment.

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Abstract

The invention discloses a polyvinyl pyrrolidine imine high-molecular compound, and a preparation method and applications thereof. The preparation method is used for solving a technical problem in the prior art that catalyst catalytic activity is reduced by applications of polyvinylpyrrolidone as a stabilizing agent or a terminated agent, and catalyst catalytic performance is limited. The structure of the polyvinyl pyrrolidine imine high-molecular compound is represented by a formula in the invention, wherein n is used for representing a positive integer. The preparation method comprises following steps: 1, polyvinylpyrrolidone and 1,3-butanediol are subjected to reflux reaction; 2, strong aqua ammonia is added, and reflux reaction is carried out; and 3, reduced pressure distillation is carried out. The polyvinyl pyrrolidine imine high-molecular compound is taken as a stabilizing agent or a terminated agent of catalysts. The preparation method comprises following advantages: simple liquid phase synthesis method is adopted to prepare the polyvinyl pyrrolidine imine high molecular with Schiff base functional groups; the preparation method is simple; raw materials are cheap; the preparation method is convenient for industrialized production; and the polyvinyl pyrrolidine imine high-molecular compound possesses potential application value in the fields of medicine, food, cosmetic, washing agent, high molecular surfactant, and catalyst.

Description

technical field [0001] The invention relates to a polyvinylpyrrolidine polymer compound and its preparation method and application. Background technique [0002] Polyvinyl pyrrolidone (Polyvinyl pyrrolidone-PVP) is an N-vinylamide polymer compound with water-oil two-soluble properties. This type of polymer compound is one of the common chemicals that are widely used. The existing chemicals in the market are generally divided into non-ionic, cationic, and anionic types. Commonly, these chemicals have a series of homopolymers, copolymers, and cross-linked polymers with a relative molecular weight ranging from several thousand to more than one million, and various The series of products have been widely used in the fields of medicine, food, cosmetics, detergents, polymer surfactants, catalyst preparation and other fields due to their unique properties, especially in the field of catalyst preparation. This chemical has been used as a common stabilizer Or end-capping agent to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F26/10C08F8/30B01J31/28
CPCB01J31/06B01J31/28C08F8/30C08F26/10
Inventor 于永生刘虎杨微微
Owner HARBIN INST OF TECH