Abstract
Synthesis of the aromatic polyamide with a narrow molecular weight distribution (Mw/Mn) was investigated via polycondensation. The new monomers, metal amide anions of 4-(N-octylamino)benzoylbenzoxazolin-2-thione (2) was prepared to prevent conventional polycondensation. The number average molecular weights (Mn)s of the resulting polymer could be controlled varying the feed ratio of 2 and p-nitrobenzoyl chloride in the range of 103–104 maintaining narrow Mw//Mns (ca. 1.15). The kinetic plots of the polymerization gave a linear relationship between polymerization time and –(1/[I]0) ln([M]/[M]0), and the rate of the polymerization was estimated as 116.4 mol-1 h-1.
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Shibasaki, Y., Araki, T., Okazaki, M. et al. Control of Molecular Weight Distribution in Polycondensation Polymers. Polyamide Synthesis. Polym J 34, 261–266 (2002). https://doi.org/10.1295/polymj.34.261
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DOI: https://doi.org/10.1295/polymj.34.261
