Thermal activity monitor self-accelerating polymerization temperatureAcrylic acid is a monomer that has been responsible for a number of severe explosions worldwide as a result of thermal runaway. The present w
[5]. It is corrosive to metals and tissue and prolonged exposure to fire or heat can cause polymerization. If polymerization takes place in a closed container, violent rupture may occur because the polymerizaiton of acrylic acid is exothermic. The inhibitor (usually hydroquinone) can greatly ...
Pressure-volume (P-V) measurements and radiation-induced polymerization of the acrylic acid (AA)-formamide (FA) binary system were carried out at 5 to 60°C and 1 to 8000 kg/cm2. The mixture containing 25 vol % of FA attained the glassy state at about 5000 kg/cm2 at 20°C....
Acrylic acid(2-propanoic acid, C3H4O2), (Figure 24) is the simplest unsaturated carboxylic acid. It has both adouble bondand acarboxyl grouplinked to its C3, and these two functional groups enable its polymerization. In itspureform,acrylic acidis a clear, colorless liquid with a characteristic...
3.1 Polymerization May undergo exothermic polymerization at room temperature. 3.2 Usage Chemical intermediate for ethyl acrylate, n-butyl acrylate, methyl acrylate, 2-ethylhexyl acrylate, for other specialty acrylates, eg, hydroxyethyl, monomer for polyacrylic acid & salts, eg, thickeners, comonomer ...
Poly(acrylic acid) solution (PAA) is an anionic polymer that can be synthesized by the free radical polymerization of acrylic acid. It has a swelling nature that tends to absorb and retain the water. Its high ion exchange capacity makes it useful in the formation of membranes. Pharmaceutical...
on waterborne pigment dispersants for automotive paints utilized CCTP for synthesis of macromonomer copolymers of BA and methacrylic acid by standard solution polymerization in the formulation of automotive base coats. These amphiphilic block copolymer macromonomers form stable anionic dispersions in water and...
The post-polymerization of acrylic acid, γ-irradiated at 77°K, has been studied by broad-line NMR and ESR between 240°K and 286°K (mp). The changes in the structure of NMR spectra during the polymerization has been related to the conversion yield checked by gravimetry of the polymer ...
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The polymerization reaction was performed in tetrahydrofuran (THF) using azobisisobutyronitrile (AIBN) as initiator. The initial molar ratio is varied (as shown in Table 5.1) in order to fine-tune the final composition of the copolymer and consequently its final properties. After purification, the ...