1、Preparation, characterization and application of maleic anhydride
Merging DMP and FRR methods into one-pot to develop a new strategy for the functionalized PLA materials. The innovative macromolecular intermediate PLAM is suitable for the introduction of various third alkenyl monomers. PLAM 20 -BA is expected to be used as a biodegradable toughening macromolecule.
2、Journal of Applied Polymer Science
Grafted maleic anhydrides (MAHs) are common compatibilizers, and the Epoxy (EP) group exhibits high activity of epoxy functional groups and strong affinity with both acidic and basic groups. Therefore, high efficiency and broad-spectrum compatibilizers can be obtained by grafting these two monomers onto the polymer molecular chain.
3、Preparation method of modified petroleum resin
After the reaction is completed, raise the temperature To 170~200℃, remove maleic anhydride and catalyst under vacuum pressure of -0.08~-0.1Mpa to obtain C5 modified petroleum resin product. The grafting rate was detected to be 11.2%.
Method for preparing modified C5 petroleum resin based on
The present invention is a radiation-modified C5 petroleum resin graft preparation method comprising: a commercial grade bromine value C5 petroleum resin 10 ~ 90gBr / 100g between the raw material, maleic anhydride-grafted single body, high energy electron beam accelerator with electron radiation grafting power source, at 50-200KGy irradiation ...
Synthesis and Performance Testing of Maleic Anhydride–Ene Monomers
Based on previous work, we synthesized eight new-style pour point depressants by polymerizing maleic anhydride and various ene monomers, including acrylic acid and acrylic ester.
A review on the synthesis of maleic anhydride based polyurethanes from
In this review, we summarised the synthesis of PUs using different polyols and pre-polymers derived from tung oi, soybean oil, castor oil,, cotton seed oil, waste vegetable oil, adipic acid, ethyl vinyl acetate, sorbitol etc. and modification by using maleic anhydride.
Preparation and characterization of maleic anhydride based resins in
Heat of polymerization poses certain problems during copolymerization of styrene-divinylbenzene-maleic anhydride, and also divinylbenzene and maleic anhydride. Two-step addition of solvent is adopted to control the heat of polymerization during the preparation of above copolymers in bulk form.
Study on Preparation of Waterproofing Agent for Mineral
Study on Preparation of Waterproofing Agent for Mineral Wool Board from Modified C_9 Petroleum Resin
Handbook of Maleic Anhydride Based Materials
A handbook on syntheses and properties, production processes, and applications of maleic anhydride and maleic anhydride derived products – all in one text. This handbook provides a comprehensive overview of maleic anhydride chemistry and applications from the professional perspective.
Preparation of Maleic Anhydride Soybean Oil Modified Unsaturated
The experiment showed that the dosage of maleic anhydride grafted soybean oil content was 11.53%, with 5% of oleic acid terminated, excessive alcohol for 12.24%~15.15%, the synthesized UPR properties is good, 14.94% was the best alcohol excess value, and new type of metal putty resin had excellent performance.
Introduction: In modern industry, petroleum resin serves as a crucial chemical raw material and is widely applied in various fields such as coatings, adhesives, sealing materials, and composite materials. Traditional petroleum resins often suffer from inadequate heat resistance, poor weatherability, and low mechanical strength, which limit their application in more demanding environments. To address these issues, scientists have proposed the method of maleic anhydride modification to enhance the performance of petroleum resins. This article will introduce the preparation process and application prospects of maleic anhydride-modified petroleum resin.
I. Principle of Maleic Anhydride-Modified Petroleum Resin: Maleic anhydride (maleic anhydride) is a strongly polar compound that can form covalent bonds with various organic macromolecules. When it reacts with petroleum resin, the carboxyl group in the maleic anhydride molecules can react with the hydroxyl or ether bonds in the petroleum resin molecules, thereby introducing new chemical bonds to improve the properties of the resin. Specifically, maleic anhydride can undergo addition reactions or ring-opening polymerization reactions with groups such as phenolics and epoxides in petroleum resins, generating polymers with specific functions.
II. Preparation Steps of Maleic Anhydride-Modified Petroleum Resin:
- Raw Material Preparation: First, suitable petroleum resins need to be selected as the base material. Typically, resins containing a higher proportion of long-chain alkanes and low-molecular-weight olefins are chosen.
- Maleic Anhydride Treatment: Dissolve maleic anhydride in appropriate solvents such as dichloromethane, acetone, etc., and then add it to the petroleum resin for thorough mixing to ensure uniform distribution of maleic anhydride molecules.
- Initiating Reaction: Use initiators like benzoyl peroxide (m-bp), azobisisobutyronitrile (aibd), etc., under the action of catalysts such as tetrabutyl titanate (tbutol), to initiate the reaction between maleic anhydride and petroleum resin.
- Post-treatment: After the reaction is completed, the product is filtered, washed, and dried to obtain the maleic anhydride-modified petroleum resin.
- Testing and Packaging: Conduct performance tests on the product (such as thermal stability, mechanical strength, weatherability, etc.), and ensure it meets the desired effect before packaging.
III. Applications of Maleic Anhydride-Modified Petroleum Resin: Maleic anhydride-modified petroleum resins are widely valued due to their excellent properties. They are commonly used in manufacturing high-performance coatings, adhesives, sealing materials, and composites. For example, in the coatings field, maleic anhydride-modified petroleum resins can improve the heat resistance, chemical resistance, and mechanical strength of coatings, making them more suitable for use in high-temperature or harsh environments. In the adhesive field, modified petroleum resins can significantly increase bonding force and anti-peeling strength, applicable to industries such as electronic packaging and medical devices. In terms of sealing materials, maleic anhydride-modified petroleum resins can provide better pressure resistance and aging resistance, extending service life. due to their unique properties, these modified petroleum resins are also used in composites for aerospace, automotive manufacturing, and other fields.
The preparation of maleic anhydride-modified petroleum resin is a novel polymer material modification technology. By introducing maleic anhydride as a special functional monomer, the properties of petroleum resin can be effectively improved. This modification method not only enhances the heat resistance, mechanical strength, and weatherability of petroleum resins but also broadens their application scope in multiple fields. With the development of science and technology, research and application of maleic anhydride-modified petroleum resins will become increasingly in-depth, bringing greater economic and social benefits to related industries.
