6533b86efe1ef96bd12cc76d

RESEARCH PRODUCT

Crystallization Behaviour at High Cooling Rates of Two Polypropylenes

Stefano PiccaroloGiuseppe TitomanlioValerio BrucatoS. Alessi

subject

chemistry.chemical_classificationMaterials scienceKineticsThermodynamicsCooling ratesPolymerSpectral linelaw.inventionchemistrylawPhase (matter)TacticityMolar mass distributionCrystallization

description

Phase distribution of quenched samples of two isotactic polypropylenes, having different molecular weight distributions, was evaluated by a deconvolution procedure of WAXD spectra. The dependence on cooling rate of the two resins shows the low molecular weights rich polymer is characterized by a faster kinetics with an α-monoclinic to mesomorphic transition taking place at higher cooling rates.

https://doi.org/10.1007/978-94-011-1950-4_44