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Influence of Chemical Structure and Solubility of Bisamide Additives on the Nucleation of Isotactic Polypropylene and the Improvement of Its Charge Storage Properties

Title data

Mohmeyer, Nils ; Schmidt, Hans-Werner ; Kristiansen, Per Magnus ; Altstädt, Volker:
Influence of Chemical Structure and Solubility of Bisamide Additives on the Nucleation of Isotactic Polypropylene and the Improvement of Its Charge Storage Properties.
In: Macromolecules. Vol. 39 (2006) Issue 17 . - pp. 5760-5767.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma060340q

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

A comparative study on the influence of chemical structure and solubility of a series of low-molecular-weigt 1,4-phenylene-bisamides in isotactic polypropylene (i-PP) was conducted to explore their performance as nucleating agents and electret additives. The series consists of three isomers of dicyclohexyl-substituted 1,4-phenylene-bisamide and three asymmetrically substituted cyclohexyl/n-alkyl-1,4-phenylene-bisamides with different chain lengths. The symmetry of the molecules, the type of substitution and the length of the alkyl chain influence the solubility in the i-PP melt, the nucleation efficiency, the ratio of the α- to β-crystal modification and the charge storage properties. The best β-nucleating efficiency was observed for the symmetrically substituted compounds, whereas the nucleation efficiency was substantially reduced in the presence of n-alkyl-substituents. The charge storage behavior of i-PP was improved only for the three dicyclohexyl-substituted 1,4-phenylene bisamides at concontrations of 100 ppm and even below. For example, a film comprising 10 ppm additive displayed charge retention of 90% after an accelerated aging (annealing for 24 h at 90 °C).

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I > Chair Macromolecular Chemistry I - Univ.-Prof. Dr. Hans-Werner Schmidt
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Polymer Engineering
Faculties > Faculty of Engineering Science > Chair Polymer Engineering > Chair Polymer Engineering - Univ.-Prof. Dr.-Ing. Volker Altstädt
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields > Emerging Fields
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 30 Jun 2015 07:39
Last Modified: 09 Dec 2015 09:57
URI: https://eref.uni-bayreuth.de/id/eprint/1355