caa a22 4500 467919585 CHVBK 20180406152913.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1007/s00706-006-0481-5 doi (NATIONALLICENCE)springer-10.1007/s00706-006-0481-5 Influence of the Phase Morphology on the Viscoelastic Behaviour of Polymer Blends ( PP -EPR) [Elektronische Daten] [Krisztina A. Vincze-Minya, Alois Schausberger] Summary.: Melts of polyethylene-propylene-rubber (EPR, blends of linear polyethylene, linear polypropylene, and PE-PP copolymer) show phase separation. The influence of the phase morphology on the viscoelastic behaviour is studied with the aid of the dynamical moduli. The measured moduli of the fraction of the linear homopolymer of an EPR agree with the moduli calculated from the molar mass distribution of this fraction. In contrast, the copolymer fraction shows a strong rubber-like behaviour (represented by a characteristic relaxation time spectrum). Mixtures of 80 wt% linear PP and of EPRs with low copolymer content are not rubber-like liquids. In addition, the moduli from them can be calculated from the moduli of the components with the aid of Palierne's emulsion model. This clearly reveals that the linear PP forms the matrix in this case. Mixtures of 80 wt% linear PP and of EPRs with high copolymer content show rubber-like behaviour and Palierne's emulsion model is not applicable on them. Obviously, the copolymer fraction forms a physical network. Springer-Verlag, 2006 Keywords. Phase morphology nationallicence Ethylene-propylene-rubber nationallicence Linear polypropylene nationallicence Viscoelasticity nationallicence Dynamic moduli nationallicence Vincze-Minya Krisztina A. Polymer Competence Center Leoben (PCCL) GmbH, Leoben aut Schausberger Alois Institute of Polymer Science, Johannes Kepler University Linz, Linz aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/7(2006-07-01), 911-918 0026-9247 137:7<911 2006 137 706 https://doi.org/10.1007/s00706-006-0481-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00706-006-0481-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vincze-Minya Krisztina A. Polymer Competence Center Leoben (PCCL) GmbH, Leoben aut NATIONALLICENCE 700 1- Schausberger Alois Institute of Polymer Science, Johannes Kepler University Linz, Linz aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/7(2006-07-01), 911-918 0026-9247 137:7<911 2006 137 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer