MICROSCOPIC DYNAMICS.END CHAIN MOTION IN THE SOLID PHASE OF TBBA

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Abstract
High resolution quasielastic neutron scattering experiments on the crystalline phase of terephtal-bis-butyl aniline (TBBA) are reported. The data are discussed in terms of rotational motion of the butyl chain extremities. Best agreement with the experiment is obtained assuming that the last methylene and methyl groups are rotating. Both correlation times and activation energy are consistent with previous NMR work on solid substances containing alkyl chains

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