Vinyl Chloride Repeat Unit

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Vinyl chloride repeat unit.

Crystalline density at 25 o c. One of the simplest repeat units is that of the addition polymer polyvinyl chloride ch 2 chcl n whose repeat unit is ch 2 chcl. Calculate the repeat unit molecular weight of poly vinyl chloride in g mol. Compute repeat unit molecular weights g mol for polydimethylsiloxane.

Solution for an alternating copolymer which has a number average molecular weight of 250 000 g mol and a degree of polymerization of 3500 we are to determine one of the repeat unit types if the other is. 14 4 a compute the repeat unit molecular weight of polystyrene. Poly vinyl chloride information structure and properties. If one of the repeat units is styrene which of ethylene propylene tetrafluoroethylene and vinyl chloride is the other repeat unit.

The distinct piece of each monomer that is incorporated into the polymer is known as a repeat unit or monomer residue. Compute repeat unit molecular weights g mol for polycarbonate. Carbon chlorine 35 45 g mo fluorine 19 00 g mol hydrogen 1 008 g mo oxygen 16 00 g mol 12 01 g mol m 62 494 g mol if the degree of polymerization of this polymer is 26000. Some authors however define dp as the number of repeat units where for copolymers the repeat unit may not be identical to the monomeric unit.

There may be more than one structural unit in the repeat unit. Vinylidene chloride chemical formula ch 2 ccl 2 polymer repeating unit structure ch 2 ccl 2 can be made directly from ethylene and chlorine or by the further chlorination of vinyl chloride with subsequent removal of hydrogen chloride by alkali treatment. When the polymer is formed the c c double bond in the monomer is replaced by a c c single bond in the polymer repeat. Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc.

It is polymerized in suspension or emulsion processes using free radical. Molar volume v m. Amorphous density at 25 o c. Molecular weight of repeat unit.

Compute repeat unit molecular weights g mol for poly ethylene terephthalate. B compute the number average molecular weight for a polystyrene for which the degree of polymerization is 25 000. Van der waals volume v vw. Compute repeat unit molecular weights g mol for poly vinyl chloride.

Atomic weights for several elements are included in the following table. In this case the repeat unit has the same atoms as the monomer vinyl chloride ch 2 chcl. About 13 billion kilograms are produced annually.