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Issue 9, 2018
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From supramolecular to conventional polymers: polyethylene glycol

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Abstract

Increasing the polymerization degree of polyethylene glycol (PEG), HO–(CH2CH2O–)nH, entails lowering the number of hydroxyl groups per unit volume; therefore, supramolecular polymers are gradually replaced by longer and longer conventional polymers. This paper concerns an estimation of the polymerization degree (n) where PEG changes its nature from a supramolecular polymer to a conventional polymer. It was found that that virtual transformation takes place when n reaches the value of about 9. The conclusion follows from the different thermal behaviors of the dipolar orientational effects in liquid PEG detected for n below and above 9. The result reflects a diametrically different impact of the temperature on the linkages between the monomers in supramolecular and conventional polymers.

Graphical abstract: From supramolecular to conventional polymers: polyethylene glycol

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Publication details

The article was received on 16 Jan 2018, accepted on 05 Feb 2018 and first published on 05 Feb 2018


Article type: Communication
DOI: 10.1039/C8CP00346G
Citation: Phys. Chem. Chem. Phys., 2018,20, 6045-6049
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    From supramolecular to conventional polymers: polyethylene glycol

    J. Świergiel and J. Jadżyn, Phys. Chem. Chem. Phys., 2018, 20, 6045
    DOI: 10.1039/C8CP00346G

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