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  2. Suspension polymerization - Wikipedia

    en.wikipedia.org/wiki/Suspension_polymerization

    In polymer chemistry, suspension polymerization is a heterogeneous radical polymerization process that uses mechanical agitation to mix a monomer or mixture of monomers in a liquid phase, such as water, while the monomers polymerize, forming spheres of polymer. [2] The monomer droplets (size of the order 10-1000 μm) are suspended in the liquid ...

  3. Polymerization - Wikipedia

    en.wikipedia.org/wiki/Polymerization

    The light may be absorbed either directly by the reactant monomer (direct photopolymerization), or else by a photosensitizer which absorbs the light and then transfers energy to the monomer. In general, only the initiation step differs from that of the ordinary thermal polymerization of the same monomer; subsequent propagation, termination, and ...

  4. Step-growth polymerization - Wikipedia

    en.wikipedia.org/wiki/Step-growth_polymerization

    Usage of monomer in the reaction: Rapid loss of monomer early in the reaction: Some monomer remains even at long reaction times Reaction steps: Similar steps repeated throughout reaction process: Different steps operate at different stages of mechanism (i.e. initiation, propagation, termination, and chain transfer) Average molecular weight

  5. Molecularly imprinted polymer - Wikipedia

    en.wikipedia.org/wiki/Molecularly_imprinted_polymer

    For example, it would be unwise to choose completely hydrophobic monomers to be imprinted with a highly hydrophilic substrate. These considerations need to be taken into account before any new MIP is created. Molecular modelling can be used to predict favourable interactions between templates and monomers, allowing intelligent monomer selection.

  6. Kinetic chain length - Wikipedia

    en.wikipedia.org/wiki/Kinetic_chain_length

    In chain-growth polymerization the propagation step is the addition of a monomer to the growing chain. The word kinetic is added to chain length in order to distinguish the number of reaction steps in the kinetic chain from the number of monomers in the final macromolecule, a quantity named the degree of polymerization. In fact the kinetic ...

  7. Wastewater quality indicators - Wikipedia

    en.wikipedia.org/wiki/Wastewater_quality_indicators

    American versions include Standard Methods for the Examination of Water and Wastewater. [4] Any oxidizable material present in an aerobic natural waterway or in an industrial wastewater will be oxidized both by biochemical (bacterial) or chemical processes. The result is that the oxygen content of the water will be decreased.

  8. Gerber method - Wikipedia

    en.wikipedia.org/wiki/Gerber_method

    Milk fat is separated from proteins by adding sulfuric acid. The separation is facilitated by using amyl alcohol and centrifugation. The fat content is read directly via a special calibrated butyrometer. Gerber developed specialized butyrometers (tubes), pipettes, and centrifuges. Water baths built specifically for the Gerber tubes are often used.

  9. In situ polymerization - Wikipedia

    en.wikipedia.org/wiki/In_situ_polymerization

    The in situ polymerization process consists of an initiation step followed by a series of polymerization steps, which results in the formation of a hybrid between polymer molecules and nanoparticles. [1] Nanoparticles are initially spread out in a liquid monomer or a precursor of relatively low molecular weight.