999-21-3 Usage
Description
Diallyl maleate is a chemical compound that possesses unique properties, making it a versatile ingredient in various industrial applications. It is characterized by its ability to promote branching in emulsion polymers, which enhances the overall performance of the final product.
Uses
Used in Emulsion Polymers Industry:
Diallyl maleate is used as a branching agent for emulsion polymers, contributing to the improvement of their properties. Its incorporation at low levels results in a more efficient and effective polymerization process, leading to enhanced performance characteristics of the final product.
Used in Polyester Resins:
Diallyl maleate has potential applications in polyester resins, where it can be utilized to improve the resin's properties, such as adhesion, flexibility, and durability. Its presence in the resin formulation can lead to better performance in various applications, including coatings and composite materials.
Used in Adhesives:
In the adhesives industry, Diallyl maleate can be employed to enhance the adhesive's bonding strength, resistance to environmental factors, and overall durability. Its incorporation into adhesive formulations can result in improved performance and reliability in various bonding applications.
Used in Ion Exchange Resins:
Diallyl maleate can also find use in the production of ion exchange resins, where it may contribute to the resin's selectivity, capacity, and stability. Its presence in ion exchange resins can lead to more efficient and effective separation and purification processes in various industries, such as water treatment and chemical processing.
Preparation
Diallyl maleate is obtained by the sulfuric acid-catalyzed esterification of maleic anhydride with propyl alcohol.
Safety Profile
Poison by ingestion and
intraperitoneal routes. Moderately toxic by
skin contact. A skin and eye irritant. When
heated to decomposition it emits acrid
smoke and irritating fumes. See also ALLYL
COMPOUNDS and ESTERS.
Check Digit Verification of cas no
The CAS Registry Mumber 999-21-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 999-21:
(5*9)+(4*9)+(3*9)+(2*2)+(1*1)=113
113 % 10 = 3
So 999-21-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H12O4/c1-3-7-13-9(11)5-6-10(12)14-8-4-2/h3-6H,1-2,7-8H2/b6-5-
999-21-3Relevant articles and documents
Synthesis and characterization of a new hydroxyl functionalized diacidic ionic liquid as catalyst for the preparation of diester plasticizers
Fareghi-Alamdari, Reza,Nadiri Niri, Mehri,Hazarkhani, Hassan
, p. 153 - 160 (2016/12/30)
Two new functionalized diacidic ionic liquids (FDAILs) including hydroxyl functionalized diacidic ionic liquid (HFDAIL) and sulfonated diacidic ionic liquid (SFDAIL) were synthesized and characterized by 1HNMR, 13CNMR and FT-IR. The catalytic activities of these FDAILs were examined in esterification reaction of anhydrides with some alcohols to give corresponding dialkyl plasticizers under solvent-free conditions. The results indicate that HFDAIL, as hydroxyl-bearing catalyst, show better catalytic performance. Under the optimum conditions, using HFDAIL, the conversion of phthalic anhydride was high and diester plasticizers were obtained with good to excellent yields in the presence of only 10?mol% of ionic liquid. All the produced diesters could be easily recovered due to their immiscibility with the ionic liquid. Recycling experiments suggests that these ionic liquids can be reused several times without remarkable loss in their catalytic activity.
Titanium isopropoxide promoted tandem self-cross and ring-closing metathesis approach for the synthesis of macrotetralides
Muthusamy, Sengodagounder,Azhagan, Datshanamoorthy
, p. 363 - 370 (2014/01/23)
A new approach is demonstrated for the synthesis of macrotetralides through an olefin metathesis reaction using Grubbs' second-generation catalyst with titanium isopropoxide as a cocatalyst. This study demonstrates a tandem self-cross and ring-closing metathesis approach to form macrocyclic ring systems with excellent (E) selectivity. The reaction was optimized with regard to functional group, catalyst, solvent, Lewis acid, concentration, and temperature. A new approach is demonstrated for the synthesis of macrotetralides through tandem self-cross and ring-closing metathesis reactions using Grubbs' second-generation catalyst and titanium isopropoxide. Copyright
