Entanglement Network of the Polypropylene/Polyamide Interface. 1. Self-Consistent Field Model

@article{citeulike:2925329, abstract = {Abstract: We present a lattice-based self-consistent mean-field theory of polymer interfaces composed of free and grafted chains and apply it to polypropylene/polyamide interfaces strengthened with graft copolymers. The theory takes into account the molecular weight distributions and stiffnesses of all chain species present in the system and the surface density of the copolymer. As our main interest is in the terminal mechanical properties of the interface, in our model we treat the PP/PA6 interface by envisioning an equivalent "solid" PA6 substrate on which the PP chains of the copolymeric compatibilizer are terminally grafted, extending into a bulk PP phase. All parameters of the model are obtained from experimentally known properties of the PP homopolymer. We investigate the influence of the molecular weight distribution and of the surface density of the grafted chains on bond order parameters, volume fraction profiles, and chain dimensions, as well as on the width of the region where surface-grafted and bulk PP chains intermingle. Results from the theory can be used as a starting point for generating an entanglement network representative of the interfacial region.}, address = {Department of Chemical Engineering, University of Patras, GR 26500 Patras, Greece; Institute of Chemical Engineering and High-Temperature Chemical Processes, GR 26500 Patras, Greece; and DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands}, author = {Terzis, A. F. and Theodorou, D. N. and Stroeks, A. }, citeulike-article-id = {2925329}, doi = {10.1021/ma991024x}, journal = {Macromolecules}, keywords = {network, scf, simulation, theory}, month = {February}, number = {4}, pages = {1385--1396}, posted-at = {2008-06-25 09:11:10}, priority = {2}, title = {Entanglement Network of the Polypropylene/Polyamide Interface. 1. Self-Consistent Field Model}, url = {http://dx.doi.org/10.1021/ma991024x}, volume = {33}, year = {2000} }

TY - JOUR ID - citeulike:2925329 L3 - citeulike-article-id:2925329 TI - Entanglement Network of the Polypropylene/Polyamide Interface. 1. Self-Consistent Field Model JF - Macromolecules VL - 33 IS - 4 SP - 1385 EP - 1396 AD - Department of Chemical Engineering, University of Patras, GR 26500 Patras, Greece; Institute of Chemical Engineering and High-Temperature Chemical Processes, GR 26500 Patras, Greece; and DSM Research, P.O. Box 18, 6160 MD Geleen, The Netherlands N2 - Abstract: We present a lattice-based self-consistent mean-field theory of polymer interfaces composed of free and grafted chains and apply it to polypropylene/polyamide interfaces strengthened with graft copolymers. The theory takes into account the molecular weight distributions and stiffnesses of all chain species present in the system and the surface density of the copolymer. As our main interest is in the terminal mechanical properties of the interface, in our model we treat the PP/PA6 interface by envisioning an equivalent "solid" PA6 substrate on which the PP chains of the copolymeric compatibilizer are terminally grafted, extending into a bulk PP phase. All parameters of the model are obtained from experimentally known properties of the PP homopolymer. We investigate the influence of the molecular weight distribution and of the surface density of the grafted chains on bond order parameters, volume fraction profiles, and chain dimensions, as well as on the width of the region where surface-grafted and bulk PP chains intermingle. Results from the theory can be used as a starting point for generating an entanglement network representative of the interfacial region. KW - network KW - scf KW - simulation KW - theory AU - Terzis, AF AU - Theodorou, DN AU - Stroeks, A PY - 2000/02/22/ UR - http://dx.doi.org/10.1021/ma991024x ER -