Influence of heterogeneous nucleation on thermodynamic properties of isotactic polypropylene

• Authors: Mateusz Barczewski , Monika Dobrzyńska-Mizera , Mirosław Trzeciak
• Languages of publication: EN

Abstracts

EN

In this paper we have investigated the effect of 1,2,3-trideoxy-4,6:5,7-bis-O-[(4-propylphenyl)methylene]-nonitol sorbitol used in varying amounts (0.01 - 1 wt %) on isotactic polypropylene (iPP) matrix. We have used dynamic mechanical thermal analysis (DMTA) and differential scanning calorimetry (DSC) to study glass transition temperatures and crystallinity as a function of the nucleating agent concentration. Isotactic polypropylene samples showed a strong dependency on amount of α nucleating agent used. An increasing content of sorbitol based nucleating agent led to an increase of crystallization temperature upon cooling from the melt at constant rate and a decrease of the glass transition temperatures.

Keywords

EN

isotactic polypropylene; PP; heterogeneous; nucleation; modifi cation; sorbitol; DMTA; DSC

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2013
• Volume: 15
• Issue: 4
• Pages: 71-74

Dates

published

1 - 12 - 2013

online

31 - 12 - 2013

Contributors

author

Mateusz Barczewski

• Poznan University of Technology, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

author

Monika Dobrzyńska-Mizera

• Poznan University of Technology, Institute of Materials Technology, Piotrowo 3, 61-138 Poznań, Poland

author

Mirosław Trzeciak

• MPTS Ltd, Szczepanowskiego 11, 60-541 Poznań, Poland

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Identifiers

DOI

10.2478/pjct-2013-0071