p-Aminobenzoylcaprolactam has been polymerized anionically in a two-step process to produce aramide-amide copolymers. Both drawn fibers and unoriented films may be produced using this method. The samples were characterized using FTIR, solution NMR, thermal analysis, viscosity, and mechanical testing. FTIR and NMR revealed the incorporation of both the aramid and amide linkages into the polymer backbone. TGA results gave a lower decomposition temperature than that of both aramide and nylon 6 materials. Intrinsic viscosities averaged 0.5 dL/g for the drawn copolymer samples polymerized by the di-functional initiator. Light microscopy displayed crystalline domains that did not appear to melt even up to 300°C. Mechanical testing showed that the initial moduli of drawn fiber samples to be in the range of 30–80 MPa, while homopolymers of nylon 6 and p-benzamide possessed values of 25 MPa and 2.70×103 MPa, respectively.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Mathias, L.J., Moore, D.R., Smith, C.E., J. Polym. Sci., Polym. Chem. Ed, in press.
Hedrick, R.M., Gabbert, J.D., U. S. Patent 4,031,164, June 21, 1977.
Kralicek, J., Kondelikova, J., Kubanek, V., Coll. Czech. Chem. Commun., 39, 249 (1974).
Kralicek, J., Kubanek, V., Kondelikova, J., Coll. Czech. Chem. Commun., 39, 742 (1974).
Kondelikova, J., Tuzar, Z., Kralicek, J., Sandova, K., Strohalmova, M., Kubanek, V., Angew. Makromol. Chem., 64, 123 (1977).
Donaruma, L.G., Scelia, R.P., Schonfeld, S.E., J. Heterocycl. Chem., 1, 48 (1964).
Mukherjee, A.K.,Goel, D.K., J. Appl. Polym. Sci., 22, 361 (1978).
Loew, L.M., Sacher, E., J. Macromol. Sci.-Phys., B21, 535 (1982).
About this article
Cite this article
Sikes, A.M., Mathias, L.J. Synthesis and characterization of in situ anionically polymerized p-aminobenzoylcaprolactam using di-and tri-functional initiator systems. Polymer Bulletin 18, 397–401 (1987). https://doi.org/10.1007/BF00275594
- Thermal Analysis
- Mechanical Testing
- Decomposition Temperature
- Intrinsic Viscosity