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N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam.It is a colorless liquid, although impure samples can appear yellow. It is miscible with water and with most common organic solvents.
N-Methylmorpholine is the organic compound with the formula O(CH 2 CH 2) 2 NCH 3.It is a colorless liquid. It is a cyclic tertiary amine.It is used as a base catalyst for generation of polyurethanes and other reactions.
In the commercial preparation of polyamideimides, the polymerization is carried out in a dipolar, aprotic solvent such as N-methylpyrrolidone (NMP), dimethylacetamide (DMAC), dimethylformamide (DMF), or dimethylsulfoxide (DMSO) at temperatures between 20 and 60 °C. The byproduct HCl must be neutralized in situ or removed by washing it from the ...
Gamma-Butyrolactone is used as a chemical solvent and a cleaning agent, [15] for example in paint stripping or for cleaning graffiti. [16] Butyrolactone is a precursor to other chemicals. Reaction with methylamine gives NMP, and with ammonia gives pyrrolidone. It is also used as a solvent in lotions and some polymers. [5]
Dihydrolevoglucosenone (Cyrene) is a bicyclic, chiral, seven-membered heterocyclic cycloalkanone which is a waste derived and fully biodegradable aprotic dipolar solvent. [4] [5] [6] It is an environmentally friendly alternative to dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP). [7]
Members of the family who own OxyContin maker Purdue Pharma, and the company itself, agreed to pay up to $7.4 billion in a new settlement to lawsuits over the toll of the powerful prescription ...
N-Methyl-2-pyrrolidone (NMP) is used as the reaction solvent because it is stable at the high temperatures required for the synthesis and it dissolves both the sulfiding agent and the oligomeric intermediates. Linear, high-molecular-weight PPS that is capable of being extruded into film or melt spun into fiber was invented by Robert W. Campbell ...
Scientists at San Jose State University say that a large fire that burned at a battery plant in Monterrey County, California earlier this month has left heightened levels of heavy metals in a ...