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Optical and Magnetic Processes and the Side Chains of Diacetylenic Materials

Published online by Cambridge University Press:  25 February 2011

Daniel J Sandman ,
Gregory P. Hamill ,
Mark Levinson ,
Philip G. Rossoni ,
Elizabeth A Yost  and
Georgia C. Papaefthymiou
Daniel J Sandman
Affiliation:
GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, Massachusetts 02254
Gregory P. Hamill
Affiliation:
GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, Massachusetts 02254
Mark Levinson
Affiliation:
GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, Massachusetts 02254
Philip G. Rossoni
Affiliation:
GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, Massachusetts 02254
Elizabeth A Yost
Affiliation:
GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, Massachusetts 02254
Georgia C. Papaefthymiou
Affiliation:
Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Abstract

Similarities in the molecular energy levels of alkylcarbazoles and aliphatic nitroxides motivate the detailed study of 4,4′-(butadiyne-l,4-diyl)-bis-(2,2,6,6-tetramethyl-4-hydroxypiperidin-l-oxyl) () as a precursor to a ferromagnetic polymer. A more convenient synthetic route to is reported, and an X-ray-induced transformation of the β-phase of to the α-phase has been observed. The magnetic properties of and derived polymers have been studied using a SQUID system. The observed level of ferromagnetism found in samples of polymerized is comparable to the amount of trace iron materials detected in these samples.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 567
Copyright
Copyright © Materials Research Society 1990

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References

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