Nn. Kolesnikova et Ya. Shlyapnikov, FORMATION AND ELIMINATION OF CENTERS OF S ORPTION OF SMALL MOLECULES IN ISOTACTIC POLYPROPYLENE, Vysokomolekularnye soedinenia. Seria A, 36(8), 1994, pp. 1322-1325
At sufficient high amount of phenyl benzoate dissolved in the melt of
isotactic polypropylene, the structure of the polymer changes. New add
itional centers of sorption arise which are capable to absorb other lo
w-molecular compounds. At temperatures below 60-degrees-C these center
s remain in the polymer even if phenyl-benzoate is removed; however, t
hey disappear at temperatures higher than 80-degrees-C.