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  2. N-Methylacetamide - Wikipedia

    en.wikipedia.org/wiki/N-Methylacetamide

    N-Methylacetamide is a flammable, difficult to ignite, hygroscopic, crystalline, colourless solid with a faint odor that is soluble in water. [1] Several isomeric forms are known. [8] [9] In solution, it is 97–100% present as the Z isomer with a polymeric structure. [10] [4] The compound has a high dielectric constant of 191.3 at 32 °C. [11]

  3. Zwitterion - Wikipedia

    en.wikipedia.org/wiki/Zwitterion

    One molecule is in the zwitterion form, the other is not. [8] In the solid state, H 4 EDTA is a zwitterion with two protons having been transferred from carboxylic acid groups to the nitrogen atoms. [9] In psilocybin, the proton on the dimethyl amino group is labile and may jump to the phosphate group to form a compound which is not a zwitterion.

  4. Reversible addition−fragmentation chain-transfer polymerization

    en.wikipedia.org/wiki/Reversible_addition%E2%88...

    Taking star polymers as an example, RAFT differs from other forms of living radical polymerization techniques in that either the R- or Z-group may form the core of the star (See Figure 10). While utilizing the R-group as the core results in similar structures found using ATRP or NMP, the ability to use the Z-group as the core makes RAFT unique.

  5. Dimethylacetamide - Wikipedia

    en.wikipedia.org/wiki/Dimethylacetamide

    The chemical reactions of dimethylacetamide are typical of N,N-disubstituted amides. Hydrolysis of the acyl-N bond occurs in the presence of acids: CH 3 CON(CH 3) 2 + H 2 O + HCl → CH 3 COOH + (CH 3) 2 NH 2 + Cl −. However, it is resistant to bases. For this reason DMA is a useful solvent for reactions involving strong bases such as sodium ...

  6. Amide - Wikipedia

    en.wikipedia.org/wiki/Amide

    Structure of acetamide hydrogen-bonded dimer from X-ray crystallography. Selected distances: C-O: 1.243, C-N, 1.325, N---O, 2.925 Å. Color code: red = O, blue = N, gray = C, white = H. [8] The lone pair of electrons on the nitrogen atom is delocalized into the Carbonyl group, thus forming a partial double bond between nitrogen and carbon.

  7. Acetamide - Wikipedia

    en.wikipedia.org/wiki/Acetamide

    Acetamide (systematic name: ethanamide) is an organic compound with the formula CH 3 CONH 2. It is an amide derived from ammonia and acetic acid. It finds some use as a plasticizer and as an industrial solvent. [5] The related compound N,N-dimethylacetamide (DMA) is more widely used, but it is not

  8. Anionic addition polymerization - Wikipedia

    en.wikipedia.org/wiki/Anionic_addition...

    In polymer chemistry, anionic addition polymerization is a form of chain-growth polymerization or addition polymerization that involves the polymerization of monomers initiated with anions. The type of reaction has many manifestations, but traditionally vinyl monomers are used.

  9. Tacticity - Wikipedia

    en.wikipedia.org/wiki/Tacticity

    [citation needed] Isotactic and syndiotactic polymers are instances of the more general class of eutactic polymers, which also includes heterogeneous macromolecules in which the sequence consists of substituents of different kinds (for example, the side-chains in proteins and the bases in nucleic acids). [citation needed]