Free Volume and Transverse Relaxation in Polymer Solutions

Abstract

NMR has proven to be a very effective tool for the study of polymer motions. In this study, we have labeled poly(isopropyl acrylate), (PIPA) in the backbone methine position with deuterium. Thus only one resonance per spectrum is observed and the results of the relaxation time measurements can be used to probe polymer motions. It is found that T//2 measurements can be used to study the transition from semi-dilute to concentrated solution. T//2 values can also be seen to exhibit either a concentration or temperature superposition predicted by simple-free volume approaches.

Department(s)

Chemistry

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1984 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Jan 1984

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