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Polyureidoborazines
Author(s) -
Gonsalves Kenneth E,
Agarwal Radha
Publication year - 1988
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590020307
Subject(s) - chemistry , differential scanning calorimetry , nitrogen , methylene , pyrolysis , boron , infrared spectroscopy , argon , carbon fibers , ammonia , polymer chemistry , organic chemistry , inorganic chemistry , physics , materials science , composite number , composite material , thermodynamics
Polyureidoborazines were synthesized by the reaction of tri‐isocyanato‐trimethylborazine with linear aliphatic diamines. The insoluble oligomers were characterized by infrared spectroscopy and the effect of the number of methylene units on thermal transitions determined by differential scanning calorimetry (DSC). The oligomers were pyrolyzed in argon and ammonia‐nitrogen atmospheres and the residues analyzed for boron, nitrogen atmospheres and the residues analyzed for boron, nitrogen and carbon.