Abstract
The miscibility of a range of poly(butadiene- stat-acrylonitrile) (BAN) copolymers, with the chlorine containing polymers, polychloroprene (PC), poly(epichlorohydrin) (PECH) and a sample of poly(vinylidene chloride- stat-acrylonitrile) (PVDC-AN) containing 19 wt% acrylonitrile and 56 wt% chlorine, has been studied. Miscibility windows were found to exist in BAN/PECH and BAN/PVDC-AN blends but not when PC was the second component. The reasons for the differences are discussed in terms of the total polar content of the chlorine containing samples and the data are compared with previous results from blends of BAN with poly(vinyl chloride) and chlorinated polyethylene. Segmental interaction energy densities were established for the PAN/PECH system and these compare favourably with those from related systems.
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