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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2007, Volume 44, Issue 3,



Paul Ghioca, Emil Buzdugan, Corneliu Cincu, Lorena Iancu, Cătălin Zaharia, Teodora Zecheru

Compozite polietilenice antişoc


Abstract:
The radial, branched, styrene-butadiene block-copolymers with different polybutadiene block microstructures have been synthesized via anionic two stages sequential polymerization of monomers in solution, followed by the coupling reaction with SiCl4. This synthesis route involves the polymerization of styrene first, and after that polystyril-lithium was modified with variable amounts of tetrahydrofurane before introducing the butadiene, in order to obtain the middle polybutadiene block with different microstructure. The paper shows the effect of the polybutadiene block microstructure on the HDPE blending modification. The HDPE modification is meant to improve the mechanical properties, especially impact resistance.


Keywords:
styrene-butadiene block-copolymers; microstructure; polyethylene

Issue: 2007 Volume 44, Issue 3
Pages:
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