ISSN:
0887-6266
Keywords:
conducting polymers, soluble, Mark-Houwink constants for
;
molecular weights and Mark-Houwink constants for soluble conducting polymers
;
poly (3-hexylthiophene), intrinsic viscosity and GPC in THF solutions of
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Intrinsic viscosities and gel permeation chromatography data were used to evaluate the Mark-Houwink constants of the soluble electronically conducting polymer, poly(3-hexylthiophene) (P3HT):K and a are 2.28 × 10-3 cm3/g and 0.96, respectively, in tetrahydrofuran (THF) at 25°C. Mark-Houwink constants were used to calibrate gel permeation chromatography (GPC) columns for P3HT. Number-average molecular weights of P3HT determined with modified calibration curves agreed well with those determined by an absolute method, embulliometry. Molecular weights estimated using unmodified polystyrene calibration procedures were significantly larger than true values.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/polb.1991.090291303
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