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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.

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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