Intrinsic Viscosity of Various Polymers

Intrinsic Viscosities (dL/gm) of Polymers in THF

Polymer	30°C	40°C	50°C
Polystyrene Mw = 250,000 (Mw/Mn = 2.50	0.843	0.845	0.845
Poly(vinyl acetate) Mw = 234,500 Mw/Mn = 3.17	0.748	0.749	0.749
Poly(Iso-Butylene) Mw = 105,300 Mw/Mn = 1.78	0.495	0.510	0.515
Poly(dimethylsiloxane) Mw = 220,100 Mw/Mn = 3.50	0.685	0.695	0.710
Brominated Polystyrene Mw = 646,000 Mw/Mn = 2.15	0.284	0.278	0.268
Poly(2-vinylpyridine) Mw = 188,000 Mw/Mn = 3.24	0.450	0.450	0.445
Poly(vinyl butyral) Mw = 92,300 Mw/Mn = 3.90	1.036	1.010	0.985
Poly(vinyl chloride) Mw = 118,800 Mw/Mn = 2.30	1.110	1.090	1.047
Poly(methyl methacrylate) Mw = 227,000 Mw/Mn = 2.06	0.619	0.620	0.615

 

Intrinsic Viscosities (dL/gm) of Polymers in DMF

Polymer	30°C	40°C	50°C
Polystyrene Mw = 250,000 Mw/Mn = 2.50	0.495	0.505	0.516
Poly(vinyl butyral) Mw = 92,300 Mw/Mn = 3.90	0.565	0.660	0.687
Poly(2-vinylpyridine) Mw = 188,000 Mw/Mn = 3.24	0.509	0.528	0.531
Poly(methyl methacrylate) Mw = 227,000 Mw/Mn = 2.06	0.485	0.517	0.555
Poly(acrylonitrile) Mw = 86,200 Mw/Mn = 3.81	1.559	1.513	1.235

 

Polystyrene Dow 1683 Intrinsic Viscosity at 30°C

Chloroform	IV = 0.925 (dL/gm)
Toluene	IV = 0.845 (dL/gm)
THF	IV = 0.843 (dL/gm)
TCB (140°C)	IV = 0.725 (dL/gm)
DMF	IV = 0.495 (dL/gm)