Intrinsic Viscosity-molecular Weight Relationship of Poly (Hexanediol Adipate)
Jiankun Li, Zegang Zong, Dehua Hou, Bojun Tu, Weilan Xue, Zuoxiang Zeng
Asian Journal of Chemical Sciences · pp. 1–8 · Published 30 May 2019
10.9734/ajocs/2019/v6i218992Abstract
In this work, a series of poly(Hexanediol adipate)(PHA) samples (103＜Mn＜104) with narrow molecular weight distribution were prepared by the polymerization between adilic acid and 1,6-hexandiol. End-group analysis was applied to determine the number average molecular weight (Mn) of PHA. Gel permeation chromatography (GPC) was employed to obtain the average molecular weights (Mn, Mv, Mw).The intrinsic viscosity of the samples in the tetrahydrofuran (THF) solution was determined at 298 K by the dilution extrapolation method and the one-point method. The relationship between the intrinsic viscosity and the molecular weight for PHA was studied by the Mark-Houwink-Sakurada (MHS) equation, and the parameters of equation were determined.
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