Lysine-chitosan resin and preparation method thereof

A chitosan resin, lysine technology, applied in chemical instruments and methods, pharmaceutical formulations, cosmetic preparations, etc., can solve problems such as unfavorable macromolecular mass transfer, few chitosan resin pores and the like, and achieve a preparation method. Simple and easy to implement, simple in components, good in acid and alkali resistance

Inactive Publication Date: 2008-09-10
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chitosan resin prepared by these two methods has few pores, which is not conducive to the mass transfer of macromolecules.

Method used

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  • Lysine-chitosan resin and preparation method thereof
  • Lysine-chitosan resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of component of lysine-chitosan resin and mass percentage thereof are:

[0023] Chitosan 42%

[0024] Glutaraldehyde 22%

[0025] Lysine 35%

[0026] The concrete method step of a kind of lysine-chitosan resin preparation method is as follows:

[0027] (1) Preparation of chitosan microspheres

[0028] The components were weighed in proportion for later use, that is, the mass percentages of chitosan, glutaraldehyde and lysine were 42%, 22% and 35% respectively. Chitosan was first dissolved in dilute hydrochloric acid (HCl) with a concentration of 0.1%, stirred and dissolved at room temperature to obtain a chitosan acid sol with a mass percentage of 1%, and then filled with a concentration of 0.1%. Add chitosan acidic sol slowly under stirring to a container of liquid paraffin equal to the volume of hydrochloric acid, and continue stirring for 20 minutes, so that the chitosan sol droplets are evenly dispersed into microspheres, and the chitosan microsphere syst...

Embodiment 2

[0034] A kind of component of lysine-chitosan resin and mass percentage thereof are:

[0035] Chitosan 43%

[0036] Glutaraldehyde 20%

[0037] Lysine 36%

[0038] The concrete method step of a kind of lysine-chitosan resin preparation method is as follows:

[0039] (1) Preparation of chitosan microspheres

[0040] The components were weighed in proportion for later use, that is, the mass percentages of chitosan, glutaraldehyde and lysine were 43%, 20% and 36% respectively. Chitosan was first dissolved in dilute hydrochloric acid (HCl) with a concentration of 0.2%, stirred and dissolved at room temperature to obtain a chitosan acid sol with a mass percentage of 1.5%, and then filled with a concentration of 0.2%. Add chitosan acidic sol slowly under stirring to a container of liquid paraffin equal to the volume of hydrochloric acid, and continue stirring for 25 minutes, so that the chitosan sol droplets are evenly dispersed into microspheres, and the chitosan microsphere syst...

Embodiment 3

[0046] A kind of component of lysine-chitosan resin and mass percentage thereof are:

[0047] Chitosan 44%

[0048] Glutaraldehyde 21%

[0049] Lysine 34%

[0050] The concrete method step of a kind of lysine-chitosan resin preparation method is as follows:

[0051] (1) Preparation of chitosan microspheres

[0052] The components were weighed in proportion for later use, that is, the mass percentages of chitosan, glutaraldehyde and lysine were 44%, 21% and 34% respectively. Chitosan was first dissolved in dilute hydrochloric acid (HCl) with a concentration of 0.3%, stirred and dissolved at room temperature to obtain a chitosan acid sol with a mass percentage of 2%, and then filled with a concentration of 0.3%. Add chitosan acidic sol slowly under stirring to a container of liquid paraffin equal to the volume of hydrochloric acid, and continue stirring for 30 minutes, so that the chitosan sol droplets are evenly dispersed into microspheres, and the chitosan microsphere syst...

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Abstract

The present invention is lysine-chitosan resin and its preparation process, and relates to chitosan modifying technology with lysine. The lysine-chitosan resin consists of chitosan, glutaraldehyde and lysine simply. The preparation process of lysine-chitosan resin includes the first reverse suspending process to prepare chitosan microsphere, the subsequent cross-linking with glutaraldehyde as cross-linking agent to prepare cross-linked chitosan resin and final modification with lysine to prepare the lysine-chitosan resin. The lysine-chitosan resin has homogeneous granularity, rich pores, high acid and alkali resistance and excellent effect of adsorbing acid radical anion, amino acid and protein, is regenerable, and may be used widely in medicine, food, cosmetics, water treatment, chemical and other fields.

Description

1. Technical field [0001] The invention belongs to the field of reactive polymers, in particular to lysine-modified chitosan resin and a preparation method thereof. 2. Technical Background [0002] With the improvement of people's quality of life, production and consumption are becoming more and more environmentally friendly, and it is necessary to further develop natural renewable resources. Chitosan is the deacetylation product of chitin, which has superior functional properties and unique molecular structure such as abundant sources, non-toxicity, regeneration, easy chemical modification, biocompatibility, etc., and has an exchange effect on weakly basic anions , has a good effect on many heavy metal ions, therefore, chitosan is widely used in medicine, food, cosmetics, water treatment, chemical industry, agriculture and other fields. However, chitosan in the natural state is mostly powdery, has a small specific surface area, and is easily soluble in acidic media and los...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/08C08K5/205C08K5/07A61K31/722A61K8/73C02F1/00
Inventor 肖燕周小华
Owner CHONGQING UNIV
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