for tg measurement polymer samples were prepared by casting films in a polypropylene dish the samples were dried at 105 u00b0 c in an oven overnight about 10 15 mg of sample was sealed in a dsc pan with lid the sample was heated at a rate of 10 u00b0 c min tg was determined from the second scan using a half height method the shear storage modulus g u2032 was measured by a rheometor ar2000 ta instruments new castle del polymer films were prepared by casting from a 5 w w solution the film was dried in an oven at 95 u00b0 c overnight the dry film was punched with a die 8 mm in diameter the 8 mm disc was further dried in a vacuum oven at 110 u00b0 c for two hours the shear storage modulus g u2032 was measured using 8 mm parallel plate at 110 u00b0 c and 1 hz in order to compare the effect of polyglycerols and glycerol on adhesion a dry tack peel test was performed this test measured the force required to peel a cotton strip adhered to a heated metal plate first a pae adhesive composition was applied to the metal plate by a 40 coating rod the adhesive applied to the plate had no more than 15 solids the plate was heated to 100 u00b0 c and a dry cotton strip was pressed against the plate by a 1 9 kg cylindrical roller the metal plate was then heated to 105 u00b0 c and the strip was left to.