Vinyl Chloride Repeat Unit
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.
Vinyl chloride repeat unit. Compute repeat unit molecular weights g mol for poly vinyl chloride. Solution a the repeat unit molecular weight of polystyrene is called for in this portion of the problem. 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. Van der waals volume v vw.
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. Compute repeat unit molecular weights g mol for polydimethylsiloxane. B compute the number average molecular weight for a polystyrene for which the degree of polymerization is 25 000. 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.
The distinct piece of each monomer that is incorporated into the polymer is known as a repeat unit or monomer residue. There may be more than one structural unit in the repeat unit. 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. 14 4 a compute the repeat unit molecular weight of polystyrene.
Crystalline density at 25 o c. 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. It is polymerized in suspension or emulsion processes using free radical. Atomic weights for several elements are included in the following table.
Compute repeat unit molecular weights g mol for poly ethylene terephthalate. If one of the repeat units is styrene which of ethylene propylene tetrafluoroethylene and vinyl chloride is the other repeat unit. Molecular weight of repeat unit. In this case the repeat unit has the same atoms as the monomer vinyl chloride ch 2 chcl.
Calculate the repeat unit molecular weight of poly vinyl chloride in g mol. Compute repeat unit molecular weights g mol for polycarbonate. Use table 4 3 p110 textbook. Poly vinyl chloride information structure and properties.
Click here to access table 14 3. Molar volume v m. Molecular weight of repeat unit.