Rosin-cellulose-based polyesterimide polymer, and preparation method and application thereof

A technology based on polyesterimide and cellulose, applied in the field of bio-based polymer amphiphilic polymer preparation

Active Publication Date: 2019-02-01
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Technical problem to be solved: In order to solve the problem of deep processing and utilization of rosin, the present invention proposes a rosin-cellulose-based polyimide compound and its preparation method and application, which can be used for rosin and cellulose in fluorescent light-emitting materials and ultraviolet absorption Further processing of materials

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  • Rosin-cellulose-based polyesterimide polymer, and preparation method and application thereof
  • Rosin-cellulose-based polyesterimide polymer, and preparation method and application thereof
  • Rosin-cellulose-based polyesterimide polymer, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In the first step, add 100g of gum rosin, 32.7g of maleic anhydride, 100g of glacial acetic acid, and 0.02g of p-toluenesulfonic acid into a 500mL four-neck flask, add them into the reactor, start stirring, and reflux at 120°C for 5 hours under nitrogen gas. After the product was cooled to room temperature, it was recrystallized three times with glacial acetic acid, and dried in vacuum at 120°C for 5 hours to obtain MPA;

[0030] In the second step, 26g MPA (0.065mol, about 1.3 times of EC) was dissolved in 40mL THF, and 7.2mL oxalyl chloride (0.0845mol, 10.7g) was added dropwise at 0°C, and reacted at 50°C for 2 hours (dropping A small amount of DMF, 0.35mL, about 5wt.% of MPA, passed through molecular sieves before use). Remove the reactant and evaporate to dryness at 50°C, then add 40mL THF, and evaporate to dryness; then add 40mL THF and evaporate to dryness to obtain the intermediate product MPACl;

[0031] In the third step, MPACl was dissolved in THF and dropped...

Embodiment 2

[0034] In the first step, add 100g of gum rosin, 32.7g of maleic anhydride, 100g of glacial acetic acid, and 0.02g of p-toluenesulfonic acid into a 500mL four-neck flask, start stirring, and reflux at 120°C for 5 hours under nitrogen, and cool the product to After room temperature, recrystallize three times with glacial acetic acid, and dry in vacuum at 120°C for 5 hours to obtain MPA;

[0035] In the second step, 26g MPA (0.065mol, about 1.3 times of EC) was dissolved in 40mL THF, and 7.2mL oxalyl chloride (0.0845mol, 10.7g) was added dropwise at 0-5°C, and reacted at 50°C for 2 hours ; (drop a small amount of DMF, 0.35mL, about 5wt.% of MPA, pass through molecular sieves before use). Remove the reactant and evaporate to dryness at 50°C, then add 40mL THF, and evaporate to dryness; then add 40mL THF and evaporate to dryness to obtain the intermediate product MPACl;

[0036] In the third step, MPACl was dissolved in THF and dropped into a flask containing 12.3g EC (0.05mol), ...

Embodiment 3

[0039] In the first step, add 100g of gum rosin, 32.7g of maleic anhydride, 100g of glacial acetic acid, and 0.02g of p-toluenesulfonic acid into a 500mL four-neck flask, start stirring, and reflux at 120°C for 5 hours under nitrogen, and cool the product to After room temperature, recrystallize three times with glacial acetic acid, and dry in vacuum at 120°C for 5 hours to obtain MPA;

[0040] In the second step, 26g of MPA (0.065mol, about 1.3 times of EC) was dissolved in 40mL of THF, and 7.2mL of oxalyl chloride (0.0845mol, 10.7g) was added dropwise at 0°C, and reacted at 50°C for 2 hours; ( Add a small amount of DMF, 0.35mL, about 5wt.% of MPA, pass through molecular sieves before use). Remove the reactant and evaporate to dryness at 50°C, then add 40mL THF, and evaporate to dryness; then add 40mL THF and evaporate to dryness to obtain the intermediate product MPACl;

[0041] In the third step, MPACl was dissolved in THF and dropped into a flask containing 12.3g EC (0.05...

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Abstract

The invention discloses a rosin-cellulose-based polyesterimide polymer, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, adding gum rosin,maleic anhydride, glacial acetic acid and p-toluenesulfonic acid into a reactor, carrying out a reaction at 120 DEG C for 5 h, performing cooling crystallization, and performing recrystallization three times to obtain maleopimaric anhydride; 2, adding MPAEC, oxalyl chloride, tetrahydrofuran and N,N-dimethylformamide into the reactor, and carrying out a reaction at 50 DEG C for 2 h to obtain rosinacyl chloride; 3, adding ethyl cellulose, DMAP, THF and MPACl into the reactor, carrying out a reaction at 50 DEG C for 1 h to obtain rosin-based cellulose; and 4, adding the MPAEC, alkylamine, hexamethylenediamine silane and DMF into the reactor, carrying out condensing, refluxing and reacting at a certain temperature under an introduced nitrogen condition for 5 h to obtain the rosin-cellulose-based polyesterimide. The alkylamine adopted in the invention includes butylamine, octylamine and 1,12-diaminododecane.

Description

technical field [0001] The invention belongs to the technical field of preparation of bio-based macromolecular amphiphilic polymers, and in particular relates to a rosin-cellulose-based polyester imide polymer and its preparation method and application. Background technique [0002] In the case of the increasingly scarce fossil energy, the development and utilization of biomass polymer materials as a natural renewable resource that has the potential to replace fossil energy has become the focus of attention in the world. As one of the most widely sourced natural organic polymers in nature, cellulose is a renewable biomass resource that is expected to replace petroleum. Due to the regular arrangement of cellulose crystals, dense structure, and a large number of hydroxyl groups are blocked, the reaction reagents are not easy to react with cellulose, which greatly limits the application of cellulose. Ethyl cellulose (EC) is a widely used cellulose derivative in which the hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/16C08L79/08
CPCC08G73/16C08L79/08C08L2201/08
Inventor 王基夫丘雨玲卢传巍程增会储富祥
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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