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P(MAh-AA)-PEG4000 cross-linked polymer and preparation method thereof

A technology for cross-linked polymers and copolymers, applied in the field of polyacrylate stereocross-linked polymers and their preparation, can solve problems such as no research reports yet, and achieve the effect of feasible and easy-to-implement methods

Inactive Publication Date: 2012-03-28
SOUTHWEST PETROLEUM UNIV
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  • P(MAh-AA)-PEG4000 cross-linked polymer and preparation method thereof

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[0034] Weigh 45.0~55.0g P(MMA-MAh) and 2.0~4.5g PEG4000, add 200ml butanone to dissolve, then add 2.0g dimethyl sulfate (DMS), mix and place in a three-necked reaction flask; under nitrogen protection, Stir and react at 60°C for 15-20 h; after the reaction, use vacuum distillation to distill all butanone out of the solvent, add 250ml methanol and 0.5g dimethyl sulfate (DMS), under nitrogen protection, 60°C Stir at constant temperature for 10-13 hours; after the reaction, remove the methanol to obtain the crude product, then use butanone as the solvent and pure water as the precipitant to re-precipitate, dissolve and precipitate 4 times repeatedly, and then obtain a white rubber-like polymer; finally The obtained product was washed with petroleum ether repeatedly 4 times, and vacuum-dried for 3 days to obtain a pure polymer.

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Abstract

The invention relates to a polyacrylate cross-linked polymer and a preparation method thereof. The polyacrylate cross-linked polymer P(MAh-AA)-PEG4000 synthesized by two-step esterification reaction is technically characterized in that the formula comprises the following raw materials in mass by weight: 45.0-55.0g of copolymer (P(MAh-AA)), 2.0-4.5g of polyethylene glycol (PEG4000) and 250ml of methyl alcohol (CH3OH) (the methyl alcohol is reactant and a solvent); the process conditions are as follows: the temperature of the two-step esterification reaction is respectively 60 DEG C, the solvents are butanone and methyl alcohol, the initiators are dimethyl sulfate (DMS) respectively, and the reaction time is respectively 15-20 hours and 10-13 hours. The invention has the beneficial effects that a new polyacrylate cross-linked polymer is synthesized, so that not only is the variety of the polyacrylate polymer expanded, but also the foundation is laid for application of the polyacrylate polymer in wider fields. The invention has the advantages of cheap needed materials, more direct and simpler operation and process, wide applicability and certain actual popularization significance.

Description

technical field [0001] The invention relates to a polyacrylate stereocrosslinked polymer and a preparation method thereof. Background technique [0002] As a cheap and easy-to-obtain polymer material, polyacrylate polymer has been widely used in energy, automobile, electrical appliances, machinery, environment, construction and other fields. However, applications in different fields put forward different performance requirements for polyacrylate polymers. In order to solve this problem, one of the methods currently adopted is to modify polyacrylate polymers, such as adding fillers and blending. This method has indeed achieved remarkable results in a wide range, and has made great contributions to the application of polyacrylate polymers. However, this method has a shortcoming that cannot be ignored, such as fillers. Aggregation, phase separation, etc. Therefore, the method of designing the composition and structure of polyacrylate polymers and preparing polymers that meet...

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Application Information

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IPC IPC(8): C08G81/02C08F220/06C08F222/06
Inventor 黄韵王煦刘丽
Owner SOUTHWEST PETROLEUM UNIV
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