Premium
New aromatic silicon‐containing polyamides
Author(s) -
Pratt J. R.,
Johnston N. J.
Publication year - 1976
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760160506
Subject(s) - polyamide , thermogravimetric analysis , materials science , silicon , silane , benzene , polymer chemistry , dimethylacetamide , aramid , polymerization , polymer , glass transition , condensation polymer , monomer , organic chemistry , composite material , chemistry , fiber , solvent , metallurgy
As part of an ongoing program to prepare and evaluate thermally‐stable, processable materials, 18 aromatic, silicon containing polyamides (structures shown below) have been synthesized via interfacial polymerization of six silicon‐containing diacid chlorides with 3,3′‐diaminodiphenyl‐nethane, 3,3′‐diaminobenzophenone, and l‐(3′‐amino‐benzy)‐4‐(3″aminobenzoyl)benzene. All polyamides were soluble in m‐cresol and N,N‐dimethylacetamide and had glass transition temperatures between 178 and 254°C, Thermogravimetric analyses conducted in static air on film specimens were‐ 1 used to show 5 and 10 percent weight losses between 331–400°C and 354–440°C, respectively.3,3′‐ and 4,4′‐silane isomers R = R′ = Me; R = Me; R′ = Ph; R = R′ = Ph