Blends of poly(N-vinyl-2-pyrrolidone) (PVP) with a copolyamide (CoPA) randomly composed of 1:1:1 (wt) nylon 6, nylon 66 and nylon 610 structural units were prepared by casting from a common solvent. They were found to be miscible and show a single, composition-dependent glass transition temperature (Tg). The addition of PVP to CoPA significantly lowers the crystallinity owing to an increasing T~ of the system. The observed miscibility is proposed to be the result of specific interactions between the proton acceptor groups of PVP and the amide groups of CoPA.
Посилання на статтю:
Miscibility of poly(N-vinyl-2-pyrrolidone) with a copolyamide / Guo Qipeng, Yu Min and Feng Zhiliu // Polymer. – 1992. – Vol 33. – P. 893-895.