Abstract

The miscibility of poly(3-chloropropyl methacrylate) (PCPMA) with poly(styrene-co-acrylonitrile) (SAN) and poly( p-methylstyrene-co-acrylonitrile) ( pMSAN) was investigated using differential scanning calorimetry. Based on the single composition-dependent glass transition criterion and the optical clarity of the blends, PCPMA was found to be miscible with SAN having acrylonitrile (AN) contents between 12 and 35 wt%, and with pMSAN having AN contents between 15 and 33 wt%. The miscibility ranges are narrower than those predicted by a non-hydrogen-bonded solubility parameter approach. Various segmental interaction parameters were evaluated using a binary interaction model.

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