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Darstellung und Untersuchung eines neuen Diacetylens mit Nitroxylradikal‐Endgruppen
Author(s) -
Dulog Lothar,
Lutz Sabine
Publication year - 1991
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1991199101167
Subject(s) - diacetylene , chemistry , polymer chemistry , isocyanate , thermal decomposition , nitroxyl , diol , polymerization , organic chemistry , polyurethane , polymer
Synthesis and Characterization of a New Diacetylene with Terminal Nitroxyl Radical Groups The new diacetylene 4 was prepared from 4‐isocyanato‐2,2,6,6‐tetramethylpiperidin‐1‐oxyl ( 2 ) and 2,4‐hexadiyne‐1,6‐diol ( 3 ). The diacetylene 4 could not be polymerized by irradiation or thermal treatment, but decomposition and loss of paramagnetic properties was observed. A new synthesis of isocyanate 2 is also described.