Unlock instant, AI-driven research and patent intelligence for your innovation.
Preparation method for rosin-based porous polymer microsphere
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A polymer and rosin-based technology, which is applied in the field of preparation of rosin-based porous polymer microspheres, has achieved good application prospects, low cost, and wide sources
Active Publication Date: 2014-01-08
西安凯尔文石化助剂制造有限公司
View PDF2 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] In the presence of porogens, suspension polymerization of rosin esters and bifunctional monomers such as styrene and divinylbenzene, followed by hydrolysis and extraction to prepare porous polymer microspheres; Due to the reproducibility and biodegradability of rosin, the obtained rosin-based porous microspheres are expected to be applied in the fields of sewage purification and drug sustained release; and the esterification of rosin in the presence of porogens Suspension polymerization with bifunctional monomers such as styrene and divinylbenzene, followed by hydrolysis and extraction to prepare porous polymer microspheres has not been reported
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] (1) Add 0.5 parts by mass of the initiator azobisisobutyronitrile to 100 parts by mass of the monomer mixture (the mass ratio of rosin hydroxyethyl methacrylate, styrene and DVB is 20:30:8) , and then add 30 parts by mass of a mixed porogen (the mass ratio of toluene to liquid paraffin is 10:90), and obtain an oil phase after being uniformly dispersed by ultrasonic at 28°C.
[0019] (2) Add 3 parts by mass of dispersant gelatin and 300 parts by mass of deionized water into the reactor, pass nitrogen gas to remove oxygen, heat up to 80°C and stir to completely dissolve the dispersant, then cool down to 60°C to obtain a water phase .
[0020] (3) Add the oil phase prepared in step (1) to the water phase prepared in step (2), set the stirring speed to 500 rpm, heat up to 80°C and react for 4 hours, then heat up to 90°C , The intermediate product was obtained after aging for 2 hours.
[0021] (4) Wash the intermediate product obtained in step (3) for 12 times with 60°C de...
Embodiment 2
[0025] (1) Add 1 mass part of the initiator azobisisobutyronitrile to 100 mass parts of the monomer mixture (the mass ratio of rosin hydroxyethyl methacrylate, styrene and DVB is 20:40:10) , and then add 20 parts by mass of a mixed porogen (the mass ratio of toluene to liquid paraffin is 20:80), and obtain an oil phase after ultrasonic dispersion at 28°C.
[0026] (2) Add 5 parts by mass of dispersant gelatin and 500 parts by mass of deionized water into the reactor, pass through nitrogen to remove oxygen, heat up to 80°C and stir to completely dissolve the dispersant, then cool down to 60°C to obtain the water phase .
[0027] (3) Add the oil phase prepared in step (1) to the water phase prepared in step (2), set the stirring speed to 600 rpm, heat up to 70°C and react for 5 hours, then heat up to 90°C , The intermediate product was obtained after aging for 2 hours.
[0028] (4) Wash the intermediate product obtained in step (3) for 12 times with 60°C deionized water, filte...
Embodiment 3
[0032] (1) Add 1.5 parts by mass of the initiator azobisisobutyronitrile to 100 parts by mass of the monomer mixture (the mass ratio of rosin hydroxyethyl methacrylate, styrene and DVB is 20:60:20) , and then add 40 parts by mass of mixed porogen (wherein the mass ratio of toluene to liquid paraffin is 30:70), and obtain an oil phase after ultrasonic dispersion at 28°C.
[0033] (2) Add 8 parts by mass of dispersant gelatin and 700 parts by mass of deionized water into the reactor, pass nitrogen gas to remove oxygen, heat up to 80°C and stir to completely dissolve the dispersant, then cool down to 60°C to obtain a water phase .
[0034] (3) Add the oil phase prepared in step (1) to the water phase prepared in step (2), set the stirring speed to 700 rpm, heat up to 75°C and react for 6 hours, then heat up to 90°C , The intermediate product was obtained after aging for 2 hours.
[0035] (4) Wash the intermediate product obtained in step (3) for 12 times with 60°C deionized wat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a preparation method for a rosin-based porous polymer microsphere. The method includes subjecting initiator azodiisobutyronitrile, a monomer mixture (rosin hydroxyethyl methylacrylate, styrene and divinyl benzene) and a mixed porogenic agent (toluene and liquid paraffin) to uniform ultrasonic dispersion to obtain an oil phase, subjecting dispersing agent gelatine and deionized water to heating and stirring in a nitrogen atmosphere until a dispersing agent is completely dissolved, then cooling to obtain an aqueous phase, adding the oil phase into the aqueous phase, curing after temperature rise reaction at a certain stirring speed to obtain a product, washing the product by deionized water, then filtering the washed product by a stainless steel mesh, drying the filtered product to obtain a faint yellow rosin-based polymer microsphere which contains the porogenic agent, then subjecting the rosin-based polymer microsphere to hydrolytic treatment by a NaOH solution, extracting in a soxhlet extractor by acetone, and drying again to obtain the rosin-based porous polymer microsphere. According to the preparation method for the rosin-based porous polymer microsphere, rosin is used as a raw material, the raw material source is wide, the cost is low, and the obtained porous polymer microsphere has a good application prospect in terms of adsorption, slow release and the like.
Description
technical field [0001] The invention belongs to the field of polymer material preparation, in particular to a preparation method of rosin-based porous polymer microspheres. Background technique [0002] As an important natural resource in our country, rosin has many excellent properties such as anti-corrosion, insulation, and adhesion, and is widely used. There are also many application methods. The shortcomings such as poor thermal stability limit its application. By using the two active groups of rosin resin acid - carboxyl group and conjugated double bond, it can be modified (such as saponification, esterification, addition, polymerization, etc.) Deep processing, its fine deep processing and modified products are widely used in many fields such as ink, paint, rubber, papermaking, adhesives, food additives and biological products, which greatly improves the utilization value of rosin. [0003] Polymer microspheres have a large specific surface area and the ability to carr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More