DETERMINATION OF MOLECULAR-WEIGHTS AND MARK-HOUWINK CONSTANTS FOR SOLUBLE ELECTRONICALLY CONDUCTING POLYMERS

被引：79
|
作者：
HOLDCROFT, S
机构：
[1] Department of Chemistry, Simon Fraser University, Burnaby, British Columbia
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1991年 / 29卷 / 13期
关键词：
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;
D O I：
10.1002/polb.1991.090291303
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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 x 10(-3) cm3/g and 0.96, respectively, in tetrahydrofuran (THF) at 25-degrees-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.
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页码：1585 / 1588
页数：4
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