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Synthesis and Characterization of Hyperbranched Polyisobutylene

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: Alex Dragomirescu, C. Paulo, J.E. Puskas, V. Altstadt

Editorial: Scientific Communications, Bayer Inc. Rubber Division, Sarnia, Ontario, 2001.


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The 4-(1-methoxy-1-methyl-ethyl)-styrene inimer was successfully synthesized and characterized. Gel-free high molecular weight hyperbranched PIBs(3< BR < 60) were prepared (1 pound per batch). Molecular weigths up to 1.04x106 g.mol-1 and MWD as low as 1.2 in only 15-60 minutes reaction time were achieved. Preliminary viscoelastic and technical characterization revealed very interesting properties.

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Cuvinte cheie: Hyperbranched polymers, polyisobutylene, structure, synthesis, analysis, rheology