Publication result detail

Effect of Multiple Extrusion on Molecular Structure of Polypropylene Impact-Copolymer

HERMANOVÁ, S.; TOCHÁČEK, J.; JANČÁŘ, J.; KALFUS, J.

Original Title

Effect of Multiple Extrusion on Molecular Structure of Polypropylene Impact-Copolymer

English Title

Effect of Multiple Extrusion on Molecular Structure of Polypropylene Impact-Copolymer

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Neat and multiple processed polypropylene impact-copolymer (ICPP) were fractionated using series of hydrocarbon solvents with increasing solvent power. The analyses of the fractions obtained in successive extractions showed significant decrease in weight-average molecular weight ( Mw) and narrowing the molecular weight distribution (MWD) of investigated samples after extrusions. Although the changes due to thermooxidation were observed in all phases of the system, the most intensive degradation was found in the prevailing PP homopolymer phase

English abstract

Neat and multiple processed polypropylene impact-copolymer (ICPP) were fractionated using series of hydrocarbon solvents with increasing solvent power. The analyses of the fractions obtained in successive extractions showed significant decrease in weight-average molecular weight ( Mw) and narrowing the molecular weight distribution (MWD) of investigated samples after extrusions. Although the changes due to thermooxidation were observed in all phases of the system, the most intensive degradation was found in the prevailing PP homopolymer phase

Keywords

Polypropylene impact-copolymer, thermooxidation degradation, fractionation, extrusion

Key words in English

Polypropylene impact-copolymer, thermooxidation degradation, fractionation, extrusion

Authors

HERMANOVÁ, S.; TOCHÁČEK, J.; JANČÁŘ, J.; KALFUS, J.

RIV year

2010

Released

30.06.2009

ISBN

0141-3910

Periodical

POLYMER DEGRADATION AND STABILITY

Volume

94

Number

10

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1722

Pages to

1727

Pages count

6

BibTex

@article{BUT48574,
  author="Soňa {Hermanová} and Jiří {Tocháček} and Josef {Jančář} and Jan {Kalfus}",
  title="Effect of Multiple Extrusion on Molecular Structure of Polypropylene Impact-Copolymer",
  journal="POLYMER DEGRADATION AND STABILITY",
  year="2009",
  volume="94",
  number="10",
  pages="1722--1727",
  issn="0141-3910"
}