More specifically, thermoplastics that can be successfully plasticized using the long chain ester plasticizers described herein include polyvinyl chlorides, nylons, propylene/??-olefin copolymers, ethylene/??-olefin copolymers such as, for example, ethylene/propylene copolymers and ethylene/1-octene copolymers, polyolefins such as polyethylenes and polypropylenes, polystyrenes such as styrene/ethy