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

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

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
270 KB
Volume
29
Category
Article
ISSN
0014-3057

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✦ Synopsis

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.

📜 SIMILAR VOLUMES

Physical studies of ionically-terminated
Physical studies of ionically-terminated polytetrahydrofuran—II. Application of the Mark-Houwink relation and determination of unperturbed molecular dimensions
✍ S.A.M. Ali; D.J. Hourston 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 558 KB

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