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  2. N-Methyl-2-pyrrolidone - Wikipedia

    en.wikipedia.org/wiki/N-Methyl-2-pyrrolidone

    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. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide.

  3. 2-Pyrrolidone - Wikipedia

    en.wikipedia.org/wiki/2-Pyrrolidone

    2-Pyrrolidone, also known as 2-pyrrolidinone or butyrolactam, is an organic compound consisting of a 5-membered lactam, making it the simplest γ-lactam. It is a colorless liquid that is miscible with water and most common organic solvents.

  4. Pyrrolidine - Wikipedia

    en.wikipedia.org/wiki/Pyrrolidine

    Pyrrolidine, also known as tetrahydropyrrole, is an organic compound with the molecular formula (CH 2) 4 NH. It is a cyclic secondary amine , also classified as a saturated heterocycle . It is a colourless liquid that is miscible with water and most organic solvents.

  5. Solvent - Wikipedia

    en.wikipedia.org/wiki/Solvent

    2-Methoxyethyl acetate 1.009 Benzonitrile 1.01 1-Methyl-2-pyrrolidinone 1.028 Hexamethylphosphoramide 1.03 1,4-Dioxane 1.033 Acetic acid 1.049 Acetic anhydride 1.08 Dimethyl sulfoxide 1.092 Chlorobenzene 1.1066 Deuterium oxide 1.107 Ethylene glycol 1.115 Diethylene glycol 1.118 Propylene carbonate 1.21 Formic acid 1.22 1,2-Dichloroethane 1.245 ...

  6. 2-Pyridone - Wikipedia

    en.wikipedia.org/wiki/2-Pyridone

    The amide group can be involved in hydrogen bonding to other nitrogen- and oxygen-containing species.. The predominant solid state form is 2-pyridone. This has been confirmed by X-ray crystallography which shows that the hydrogen in solid state is closer to the nitrogen than to the oxygen (because of the low electron density at the hydrogen the exact positioning is difficult), and IR ...

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  9. Step-growth polymerization - Wikipedia

    en.wikipedia.org/wiki/Step-growth_polymerization

    Poly(p-phenylene sulfide) (PPS) is synthesized by the reaction of sodium sulfide with p-dichlorobenzene in a polar solvent such as 1-methyl-2-pyrrolidinone (NMP). It is inherently flame-resistant and stable toward organic and aqueous conditions; however, it is somewhat susceptible to oxidants.

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