Zhang H, Jakisch L, Komber H, Haeussler L, Voit B, Boehme F (2015)
Publication Type: Journal article
Publication year: 2015
Book Volume: 79
Pages Range: 232-242
DOI: 10.1016/j.polymer.2015.10.023
A series of new graft copolymers was synthesized by a "grafting to" approach, in the course of which the polymer backbone was build up first by a chain extension reaction of polyether or polycaprolactone diols with bis-N-acyl lactams. During the first reaction step, benzoxazinone groups were introduced into the backbone which served as grafting sites for monoamino-terminated polyamide 12 or polystyrene. Chain extension and grafting could be performed successively and with high selectivity in the melt at 180-220 °C. The morphology and the thermo-mechanical behavior of the graft copolymers were strongly influenced by the type of the grafted side chains. Polymers with polyamide grafts exhibited a two phase morphology with a spherulitic superstructure in the micrometer scale. The tensile behavior of these polymers was characterized by a certain elastic component. In contrast, the phase morphology of a polystyrene grafted polymer was much finer. A strong influence on the glass transitions revealed improved compatibility between the components. Pronounced strain hardening was observed during the tensile test of polystyrene grafted samples.
APA:
Zhang, H., Jakisch, L., Komber, H., Haeussler, L., Voit, B., & Boehme, F. (2015). Novel graft copolymers with aliphatic polyether and polyester main chains. Polymer, 79, 232-242. https://dx.doi.org/10.1016/j.polymer.2015.10.023
MLA:
Zhang, Haiping, et al. "Novel graft copolymers with aliphatic polyether and polyester main chains." Polymer 79 (2015): 232-242.
BibTeX: Download