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Physical studies of ionically-terminated polytetrahydrofuran polymers. I. Dilute solution behavior

✍ Scribed by S. A. M. Ali; D. J. Hourston

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 482 KB
Volume: 43
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1991.070430812

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Physical studies of ionically terminated

Physical studies of ionically terminated polytetrahydrofuran polymers. IV. Solid-state studies

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Physical studies of ionically-terminated polytetrahydrofuran polymers—III. NMR relaxation time studies

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A~traet--From 13C-NMR relaxation time studies it was confirmed that the introduction of ionic end groups in polytetrahydrofuran (PTHF) polymers affects the hydrodynamic behaviour of these ionicallyterminated PTHF polymers. This phenomenon only occurs in solvents with low dielectric constant.

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Abstraet--Tetrahydrofuran polymers terminated at one end with a pyridinium bromide group were prepared and their hydrodynamic behaviour contrasted with the equivalent methoxy-terminated polymers. The hydrodynamic behaviour of methoxy-terminated polytetrahydrofuran in cyclohexane, toluene, tetrahydro