3290-92-4 Usage
Chemical Properties
Trimethylolpropane trimethacrylate (TMPTMA) is a crosslinking agent. It is quite stable in water as it hydrolyses very slowly. However, TMPTMA is inherently biodegradable. It can be assumed that TMPTMA is also biodegradable in soil and sediment and thus can be considered as non persisting in soil and sediment. Trimethylolpropane trimethacrylate rapidly photodegradates in air.
Trimethylolpropane trimethacrylate is used in the preparation of macroporous poly (glycidyl methacrylate-co-trimethylolpropane trimethacrylate) materials with fine controlled porous properties.
Characteristics
Trimethylolpropane trimethacrylate is a typical trifunctional monomer, and its viscosity is higher than that of monofunctional and bifunctional monomers, but compared with multifunctional monomers, its viscosity is relatively low, and it has good solubility. This monomer provides high cure speed and high crosslink density, and can form a hard, scratch-resistant and brittle cured film with excellent solvent resistance. Its price is relatively low, although it is irritating to the skin, it is still the most commonly used multifunctional monomer. It is ideal for various coatings anaerobic adhesive and composite applications.
Uses
Trimethylolpropane trimethacrylate (TMPTMA) is used as an intermediate product for polymer synthesis in the chemical industry. It is a reactive trifunctional methacrylate suitable for use in a wide ranging number of polymer cross linking functions. TMPTMA is particularly useful as a co-agent in PVC plastisols, plasticizer systems and elastomers. Other applications include as an additive in water based emulsions, adhesives and UV/EB cured coatings.
Preparation
synthesis of Trimethylolpropane trimethacrylate: 40.25g (0.3mol) of trimethylolpropane and 90.41g (1.05mol) of methacrylic acid were added to the reactor equipped with a reflux condenser, a water separator, a thermometer, a stirrer, and an air sampling device respectively to inhibit the polymerization. Agent 0.39g (prepared by hydroquinone: phenothiazine=2: 1 mass ratio), CZ zirconium-based solid acid catalyst 1.21g, with water agent 100ml (prepared by the volume ratio of toluene: cyclohexane=45: 55) ), be gradually warming up to 85 ± 5 ℃ while stirring, the flow velocity that keeps feeding air in the reactor is 7ml/min, at 90-100 ℃ temperature, reacted for 5 hours (when the water agent was brought out without reaction to generate water is the reaction end point), and the filter residue obtained by filtration of the reaction solution is a CZ zirconium-based solid acid catalyst (recovered and reused). Activated carbon 2g was added to the reaction mother liquor, the temperature was raised to 45±5°C with stirring, maintained for 15 minutes, filtered while hot, and the filtrate after the activated carbon was removed was evaporated under reduced pressure to obtain the target product trimethylolpropane trimethacrylate. 110g, the purity is 98.2%, the acid value is ≤0.5mg/g (the acid value detection method is determined according to the method of GB 1668-8), and the esterification rate is 98.2%.
General Description
Trimethylolpropane trimethacrylate is a carbonyl compound.
Flammability and Explosibility
Nonflammable
Check Digit Verification of cas no
The CAS Registry Mumber 3290-92-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,9 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3290-92:
(6*3)+(5*2)+(4*9)+(3*0)+(2*9)+(1*2)=84
84 % 10 = 4
So 3290-92-4 is a valid CAS Registry Number.
InChI:InChI=1/C18H26O6/c1-8-18(9-22-15(19)12(2)3,10-23-16(20)13(4)5)11-24-17(21)14(6)7/h2,4,6,8-11H2,1,3,5,7H3
3290-92-4Relevant articles and documents
Metal-free transesterification catalyzed by tetramethylammonium methyl carbonate
Hatano, Manabu,Tabata, Yuji,Yoshida, Yurika,Toh, Kohei,Yamashita, Kenji,Ogura, Yoshihiro,Ishihara, Kazuaki
supporting information, p. 1193 - 1198 (2018/03/27)
Environmentally benign metal-free tetramethylammonium methyl carbonate is effective as a catalyst for the chemoselective, scalable, and reusable transesterification of various esters and alcohols in common organic solvents. In situ-generated highly active species, tetramethylammonium alkoxides, can greatly avoid self-decomposition at ≤110 °C, and are reusable. In particular, chelating substrates, such as amino alcohols, diols, triols, sugar derivatives, alkaloids, α-amino acid esters, etc., which deactivate conventional metal salt catalysts, can be used. A 100 gram scale biodiesel production was also demonstrated.
COMPOSITION FOR POLYELECTROLYTES, POLYELECTROLYTES, ELECTRICAL DOUBLE LAYER CAPACITORS AND NONAQUEOUS ELECTROLYTE SECONDARY CELLS
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, (2008/06/13)
A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte having an excellent safety and electrical conductivity and also a broad potential window to be obtained. In formula (1), R1 to R3 are each independently an alkyl group of 1 to 5 carbons or a substituent having a reactive unsaturated bond and any two from among R1 to R3 may together form a ring, and R4 is methyl, ethyl or a substituent having a reactive unsaturated bond, with the proviso that at least one of R1 to R4 is a substituent having a reactive unsaturated bond. X is a monovalent anion, the letter m is an integer from 1 to 8, and the letter n is an integer from 1 to 4.
