Publication detail

Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique

KUČERA, F. PETRUŠ, J. POLÁČEK, P. JANČÁŘ, J.

Original Title

Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique

Type

journal article in Web of Science

Language

English

Original Abstract

The effect of radical scavengers on the control of beta-scission of polypropylene (PP) during the free-radical grafting with maleic anhydride (MAH) in melt was investigated. The main interest was the evaluation of the effective concentration of radical scavengers Irganox 1010 (IRN1010) and Irgafos 168 (IRF168) for better control of grafting process. For this purpose, radical grafting of non-stabilized PP was performed in order to describe specifically the effect of proposed additives with no effect of additives in commercial PP grades. For this purpose, the influence of the initial concentration of IRN1010 ([1RN1010](0)) on the reaction course was predicted with respect to the change of kinetic parameters, thermal and rheological properties of PP-g-MAH. Obtained results showed that the efficiency of IRN1010 and IRF168 is not proportional to their concentration above critical level as evidenced by rheological properties of PP-g-MAH. Above that point, both the grafting efficiency and grafting rate decrease and thus the determination of effective CIRN1010 is the key for approaching controlled radical grafting of PP. (C) 2019 Elsevier Ltd. All rights reserved.

Keywords

Polypropylene; stabilization; radical grafting; reactive modification; maleic anhydride

Authors

KUČERA, F.; PETRUŠ, J.; POLÁČEK, P.; JANČÁŘ, J.

Released

5. 8. 2019

Publisher

Elsevier

ISBN

0141-3910

Periodical

POLYMER DEGRADATION AND STABILITY

Number

168

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S014139101930254X

BibTex

@article{BUT158030,
  author="František {Kučera} and Josef {Petruš} and Petr {Poláček} and Josef {Jančář}",
  title="Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique",
  journal="POLYMER DEGRADATION AND STABILITY",
  year="2019",
  number="168",
  pages="1--8",
  doi="10.1016/j.polymdegradstab.2019.108934",
  issn="0141-3910",
  url="https://www.sciencedirect.com/science/article/pii/S014139101930254X"
}