14 4 a compute the repeat unit molecular weight of polystyrene.
Vinyl chloride repeat unit.
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.
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.
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.
Calculate the repeat unit molecular weight of poly vinyl chloride in g mol.
Molecular weight of repeat unit.
Crystalline density at 25 o c.
B compute the number average molecular weight for a polystyrene for which the degree of polymerization is 25 000.
Use table 4 3 p110 textbook.
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.
About 13 billion kilograms are produced annually.
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.
Molar volume v m.
There may be more than one structural unit in the repeat unit.
Compute repeat unit molecular weights g mol for poly ethylene terephthalate.
Click here to access table 14 3.
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.
Amorphous density at 25 o c.
Solution a the repeat unit molecular weight of polystyrene is called for in this portion of the problem.
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.
Molecular weight of repeat unit.
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.
In this case the repeat unit has the same atoms as the monomer vinyl chloride ch 2 chcl.
It is polymerized in suspension or emulsion processes using free radical.
Poly vinyl chloride information structure and properties.
Compute repeat unit molecular weights g mol for poly vinyl chloride.
