ISSN:
1022-1352
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Fully aromatic and aromatic-aliphatic polyformamidines were prepared by high-temperature solution polycondensation of the appropriate diamines with triethyl orthoformate (TEOF). Copolyformamidines of benzidine (4,4′-biphenyldiamine) with p-phenylene and trans-1,4-cyclohexylene units, respectively, showed liquid-crystalline behaviour. Both series of copolyformamidines differ distinctly in crystallinity. This has been discussed with respect to sequence distribution, which was determined by 13 C NMR spectroscopy.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1995.021960520
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