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Electron Beam Crosslinking of Atactic Poly(propylene): Development of a Potential Novel Elastomer
Author(s) -
Schulze Ulrich,
Majumder Papiya Sen,
Heinrich Gert,
Stephan Michael,
Gohs Uwe
Publication year - 2008
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200800093
Subject(s) - materials science , elastomer , monomer , polymer , acrylate , amorphous solid , irradiation , polymer chemistry , composite material , chemical engineering , organic chemistry , chemistry , physics , nuclear physics , engineering
Atactic amorphous poly(propylene) of various molecular weights has been modified with high energy electrons over an irradiation dose range of 0–200 kGy. Tri‐ and tetrafunctional monomers in varied concentrations have been used as crosslinking additives. A correlation between the original molecular weight and crosslinking behavior of the polymer was observed. A higher gel content is obtained with the tetrafunctional acrylate as compared to that with the trifunctional one, under the same treatment conditions. Electron irradiation treatment at elevated temperature gives rise to an increased gel content over that at room temperature. Similarly, the mechanical properties also enhance with gel content. Moreover, the stress‐strain behavior of the electron modified systems indicates a more pronounced elastomeric nature.