Identification of Polymers in University Class Experiments Humphry J. M. Bowen University of Reading, Whiteknights, Reading, Berks. U. K. Synthetic polymers are widely used today under a great varietv of trade names. Even if the trade name is known, it is not always helpful in identifying the material. Real samples, such as f w d nackaeinp. materials, are often multilaver or sandwichlikeinstru&u~~eand may contain plasticizer
