Synthesis and thermal properties of polyamide 6 (A)-polyimide (B) block copolymers of ABA type |
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| Authors: | F J Carrière H Sekiguchi N N Surin V A Kotelnikov Ya S Vygodskii |
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| Affiliation: | (1) Laboratoire de Chimie Macromoléculaire, UA 24, Tour 44, Université Pierre et Marie Curie, 4 Place Jussieu, F-75252 Paris Cedex 05, Fance;(2) Russian Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, 117813 GSP-1, V-334 Moscow, Russia |
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| Abstract: | Summary Polyimides (PI) having different molecular weights were prepared by condensation of oxydiphthalic anhydride with 9,9-bis-(4-aminophenyl)fluorene in nitrobenzene solution at 180°C. These polyimides carried two amino chain ends which allowed us to fix polycaprolactam chains (PA6) to obtain PA6-PI-PA6 type copolymers. The elemental analysis and infrared spectroscopic determination gave the proportion of PA6 (or PI) in the copolymers. The studies of thermal properties-DSC and TGA-allowed us to characterize the copolymers. |
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