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Polypropylene/polyperoxide interaction in the melt phase
Author(s) -
Datsyuk V.,
Haussler L.,
Wagenknecht U.,
Voronov S.,
Tokarev V.,
Bednarska O.
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200102)164:1<357::aid-masy357>3.0.co;2-i
Subject(s) - polypropylene , thermogravimetric analysis , peroxide , decomposition , mixing (physics) , degradation (telecommunications) , materials science , phase (matter) , polymer chemistry , crystallization , chemical engineering , chemistry , composite material , organic chemistry , telecommunications , physics , quantum mechanics , computer science , engineering
This paper deals with the effect of polyperoxide on the properties and characteristics of PP. Interaction of PP with polyperoxide was carried out by their mixing in melt phase applying co‐rotating twin screw machine. The analysis of melting/crystallisation processes was performed using DSC. Influence of polyperoxide concentration and mixing condition (temperature, residence time) on PP properties was investigated via determination of PP molecular weight. Mechanism of the PP degradation and decomposition of peroxide groups was judged by thermogravimetric analysis, FT‐IR‐, and NMR‐spectroscopy. It was observed that decomposition of peroxide groups brings about degradation of polypropylene. However, simultaneously some part of short, chains of PP are grafted onto macrochain of the polyperoxide decomposed.