Premium
Structural Investigations of Propylene/Ethylene Random Copolymers by Thermal Fractionation Technique
Author(s) -
Destro Mara,
Ferrara Giuseppe,
Malizia Federica,
Nadalini Giorgio,
Tartari Davide
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201500007
Subject(s) - copolymer , ethylene , materials science , polymer , isothermal process , fractionation , molar mass distribution , polymer chemistry , sensibility , catalysis , polymer science , ziegler–natta catalyst , chemical engineering , thermodynamics , chemistry , composite material , organic chemistry , physics , engineering , art , literature
Summary Stepwise Isothermal Segregation Technique (SIST) has been applied to four C 3 C 2 random copolymers with very similar ethylene content and molecular weight distribution but generated by using different Ziegler‐Natta catalysts in order to test the capability of such technique to discriminate among molecular structures. On the basis of obtained results it was possible to demonstrate the sensibility of SIST to both inter‐ and intra‐ molecular defects impressed to the polymers by the different catalytic systems.