Relaxation properties of aromatic polyamides
β Scribed by L. K. Kuznetsova; V. G. Brusentsova; N. P. Trifonova; V. E. Sorokin; V. B. Glazunov; V. M. Shchetinin
- Publisher
- Springer US
- Year
- 1986
- Tongue
- English
- Weight
- 276 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0015-0541
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π SIMILAR VOLUMES
Dielectric relaxation spectroscopy (DRS) is presented for a family of four aromatic polyamides trying to relate the structure of the lateral groups to the molecular mobility. A prominent sub-T g absorption is always seen followed in some cases by remanent dielectric activity at room temperature and
Polyamides were prepared by reacting 3,5-diamino benzoic acid (DAB) and/or 1,3-bis( 3-amino benzamido) benzene ( ABB ) with terephthaloyl chloride in N,N-dimethylacetamide. Five polymer samples having different contents of pendant carboxyl groups were prepared by changing the molar ratios of DAB : A