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Faculty for Biology, Chemistry, and Earth Sciences

Macromolecular Chemistry I:

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Richter, F.; Schmidt, H.-W.: Supramolecular Nucleating Agents for Polybutylene Terephthalate based on 1,3,5-Benzenetrisamides, Macromolecular Materials and Engineering, 298(2), 190-200 (2013) -- DOI: 10.1002/mame.201200034
1,3,5-Benzenetrisamide-based supramolecular nucleating agents for poly(butylene terephthalate) (PBT) are reported. 1,3,5-Benzenetrisamides combine excellent thermal stability with chemical resistance, basic requirements for the use in high-melting thermoplastics. To establish structure–property relationships, the central core and peripheral substituents are varied systematically. Dissolution and crystallization behavior of the additives in the PBT melt and the crystallization temperature of PBT are investigated as a function of the additive concentration. Efficient nucleating agents can increase the crystallization temperature of PBT by 10.6 °C to 199.1 °C. A visualization of supramolecular nano-objects formed in the polymer melt is provided.
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