Novel polymers and dopes of aromatic polyamides containing a stilbene radical
Abstract
Abstract NOVEL FILM- AND FIBER-FORMING AROMATIC POLYAMIDES AND COPOLYAMIDES CONSISTING ESSENTIALLY OF REPEATING UNITS OF THE FORMULA -NH-R1-NH-CO-R2-CO- WHEREIN R1 REPRESENTS A RADICAL SELECTED FROM THE GROUP OF 1,4 - PHENYLENE; METHYL - 1,4-PHENYLENE; CHLORO-1,4PHENYLENE; BROMO-1,4-PHENYLENE; FLUORO - 1,4-PHENYLENE; 4,4''-BIPHENYLENE; 3,3''-DIMETHYL-4,4'' - BIPHENYLENE; 3,3''-DICHLORO-4,4''-BIPHENYLENE; AND 1,4-, 1,5- AND 2,6-NAPHTHYLENE; AND R2 REPRESENTS THE 4,4''-TRANS-STIBENYLENE RADICAL, WITH THE PROVISO THAT UP TO ABOUT 70 MOLE PERCENT, PREFERABLY UP TO ABOUT 50 MOLE PERCENT, OF THE 4,4''- TRANSSTILBENYLENE RADICALS MAY BE REPLACED BY RIGID RADICALS SELECTED FROM THE GROUP OF 1,4-PHENYLENE, CHLORO-1,4PHENYLENE, AND 2,5-PYRIDYLENE. ANISOTROPIC DOPES MAY BE FORMED FROM SUCH POLYMERS.
Inventors
- 👤 P Morgan
Bibliographic Details
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