Synthesis and Intrinsic Viscosity-molecular Weight Relationship of Poly(ethylene adipate)
Journal Title: Chemical Science International Journal - Year 2017, Vol 20, Issue 1
Abstract
In this work, two series of poly (ethylene adipate) (PEA) samples with broad and narrow molecular weight distribution (MWD) were prepared by the polymerization between adipic acid and ethylene glycol. An accurate and swift method, one-point method, was used to determine the intrinsic viscosity of PEA samples. On the basis of Mark-Houwink-Sakurada (MHS) equation, the relationship between the intrinsic viscosity and molecular weight was built for PEA (Mw≤11000) in tetrahydrofuran at 298K. The average molecular weights (Mn, Mv, Mw and Mz) were determind by using Gel-Permeation chromatography (GPC). The constants, a and K of MHS equation for the PEA samples dissolved in tetrahydrofuran at 298K were determined by a numerical method, and the influence of polydispersity correction factor (qMHS) on the relationships were studied for PEA with narrow MWD (1.107-1.219) and broad MWD (1.754-1.872).
Authors and Affiliations
Liwei Chen, Weilan Xue, Zuoxiang Zeng
Keywords
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- EP ID EP319592
- DOI 10.9734/CSJI/2017/35258
- Views 102
- Downloads 0
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