Preparation method of rosinyl magnetic polymer microspheres

A polymer and rosin-based technology, which is applied in the field of preparation of rosin-based magnetic polymer microspheres, achieves the effects of environmental friendliness, non-toxicity, cheap and easy-to-obtain raw materials, and simple synthesis process

Inactive Publication Date: 2012-09-19
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the presence of magnetic inorganic materials, rosin and its derivatives are subjected to suspension polymerization reaction with bifunctional monomers such as divinylbenzene to prepare polymer microspheres, and at the same time, inorganic magnetic materials and natural product rosin are introduced into the molecular structure of polymer microspheres However, this method has not been reported so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Mix rosin hydroxyethyl methacrylate, styrene and divinylbenzene with a mass ratio of 20:30:8 to prepare a monomer mixture, add 100 grams of monomer mixture to the flask, and then add 5 Gram Oleic Acid Modified Fe 3 o 4 , the oil phase is obtained after ultrasonic dispersion;

[0016] (2) Add 600 grams of deionized water into the reactor, then add 5 grams of dispersant gelatin, heat to 80°C, and cool down to below 60°C after the dispersant gelatin is completely dissolved to obtain an aqueous phase;

[0017] (3) The oil phase that step (1) is made joins in the aqueous phase that step (2) makes, then adds the initiator azobisisobutyronitrile of 0.5 gram, stirs with the rotating speed of 500 rev / mins, Raise the temperature to 70°C, react for 4 hours, then raise the temperature to 90°C, and finish the reaction after 2 hours of reaction;

[0018] (4) Cool the product obtained in step (3) to room temperature, wash it 15 times with distilled water, remove non-magnetic su...

Embodiment 2

[0022] (1) Mix rosin hydroxyethyl methacrylate, styrene and divinylbenzene with a mass ratio of 20:40:10 to prepare a monomer mixture, add 100 grams of monomer mixture to the flask, and then add 10 Gram Oleic Acid Modified Fe 3 o 4 , the oil phase is obtained after ultrasonic dispersion;

[0023] (2) Add 700 grams of deionized water into the reactor, then add 8 grams of dispersant gelatin, heat to 80°C, and cool down to below 60°C after the dispersant gelatin is completely dissolved to obtain an aqueous phase;

[0024] (3) The oil phase that step (1) is made joins in the aqueous phase that step (2) makes, then adds the initiator azobisisobutyronitrile of 1 gram, stirs with the rotating speed of 600 rev / mins, Raise the temperature to 80°C, react for 5 hours, then raise the temperature to 90°C, and finish the reaction after 1 hour of reaction;

[0025] (4) Cool the product obtained in step (3) to room temperature, wash it 15 times with distilled water, remove non-magnetic sub...

Embodiment 3

[0029] (1) Mix rosin hydroxyethyl methacrylate, styrene and divinylbenzene with a mass ratio of 20:60:20 to prepare a monomer mixture, add 100 grams of monomer mixture to the flask, and then add 15 Gram Oleic Acid Modified Fe 3 o 4 , the oil phase is obtained after ultrasonic dispersion;

[0030] (2) Add 800 grams of deionized water into the reactor, then add 10 grams of dispersant gelatin, heat to 80°C, and cool down to below 60°C after the dispersant gelatin is completely dissolved to obtain an aqueous phase;

[0031] (3) The oil phase that step (1) is made joins in the aqueous phase that step (2) makes, then adds the initiator azobisisobutyronitrile of 2 grams, stirs with the rotating speed of 800 rev / mins, Raise the temperature to 80°C, react for 6 hours, then raise the temperature to 90°C, and finish the reaction after 1 hour of reaction;

[0032] (4) Cool the product obtained in step (3) to room temperature, wash it 15 times with distilled water, remove non-magnetic s...

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PUM

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Abstract

The invention discloses a preparation method of rosinyl magnetic polymer microspheres, and the method comprises the following steps of: mixing rosinyl hydroxyethyl methacrylate ester, styrene and divinylbenzene with self-made oleic acid modified Fe3O4 to prepare an oil phase; then mixing deionized water with a dispersant to obtain a water phase; mixing the oil phase with the water phase, adding an initiator, agitating uniformly, and rising temperature for reaction; cooling the product to room temperature, washing with distilled water, removing nonmagnetic substances by a magnetic isolation method to obtain brown products; and soaking with diluted hydrochloric acid to remove Fe3O4 not buried in the microspheres, washing with distilled water to be neutral, and performing vacuum drying to obtain the rosinyl magnetic polymer microspheres. The dispersant is gelatin and the initiator is azodiisobutyronitrile. The method provided by the invention has the advantages of easily available raw materials, simple synthetic process, environmental friendliness and no toxicity. Inorganic material Fe3O4 and an organic high polymer are composited to prepare the magnetic microspheres to endow rosin with novel property and function, thereby expanding the application field of the rosin.

Description

technical field [0001] The technical field of the invention belongs to the field of chemical synthesis and chemical production, and particularly relates to a preparation method of rosin-based magnetic polymer microspheres. Background technique [0002] Rosin is an abundant renewable natural chemical raw material, the main component of which is resin acid. Rosin has a high acid value, is easy to oxidize, and has poor thermal stability, so its direct application is limited. Utilizing reactive groups such as carboxyl groups and conjugated double bonds in the molecular structure of rosin, through polymerization, addition, esterification and other reactions, deep-processed products such as polymerized rosin, hydrogenated rosin and various rosin esters can be obtained, and further modification can be obtained. Value-added fine chemicals and new polymer materials can be widely used in many fields such as coatings, adhesives, inks, rubber, food additives and biological products. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F212/36C09F1/04C08F2/44C08F2/20C08K9/04C08K3/22C09C1/24C09C3/08C01G49/08
Inventor 余彩莉张发爱陈传伟王孝磊
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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