TY - JOUR
T1 - Comparison of rheological behavior of branched polypropylene prepared by chemical modification and electron beam irradiation under air and N2
AU - Abbas Mousavi, S.
AU - Dadbin, Susan
AU - Frounchi, Masoud
AU - Venerus, David C.
AU - Medina, Teresita Guadarrama
PY - 2010/10
Y1 - 2010/10
N2 - Chemical and electron beam irradiation methods were used to introduce a branched structure into polypropylene and propylene-ethylene copolymer. The chemical method was carried out in an internal mixer using initiator and TMPTMA monomer. In irradiation method, the polymer was irradiated by electron beam under air and nitrogen atmosphere. The branched structure in the modified polymer was confirmed by rheological measurements. While degradation was significant in chemical method, branching occurred efficiently by irradiation under air. Small amount of ethylene in the propylene copolymer promoted branching over degradation.
AB - Chemical and electron beam irradiation methods were used to introduce a branched structure into polypropylene and propylene-ethylene copolymer. The chemical method was carried out in an internal mixer using initiator and TMPTMA monomer. In irradiation method, the polymer was irradiated by electron beam under air and nitrogen atmosphere. The branched structure in the modified polymer was confirmed by rheological measurements. While degradation was significant in chemical method, branching occurred efficiently by irradiation under air. Small amount of ethylene in the propylene copolymer promoted branching over degradation.
KW - Air and nitrogen atmosphere
KW - Branched polypropylene
KW - Chemical modification
KW - Dynamic rheology
KW - Electron beam irradiation
KW - Propylene-ethylene copolymer
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U2 - 10.1016/j.radphyschem.2010.04.010
DO - 10.1016/j.radphyschem.2010.04.010
M3 - Article
AN - SCOPUS:77954035018
SN - 0969-806X
VL - 79
SP - 1088
EP - 1094
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
IS - 10
ER -