An unconventional route for synthesis and solid-state processing of low-entangled Ultra-High Molecular Weight Isotactic Polypropylene

Dario Romano, Ramiro Marroquin-Garcia, Virendrakumar Gupta, Sanjay Rastogi

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Introducing the reverse micelle formation during polymerization, and thus avoiding the catalyst support, aggregated single crystals of Ultra High Molecular Weight isotactic Polypropylene (UHMWiPP) having spherical morphology are obtained. The ease in flowability of the spherical nascent morphology, having low-entangled state in the non-crystalline region of the single crystals in the semi-crystalline polymer, allows sintering of the nascent polymer in the solid-state without melting. Thus maintained low-entangled state, facilitates translation of macroscopic forces to macromolecular length scale, without melting, leading to the formation of uniaxial drawn objects having unprecedented properties that can be used in the development of one component high performance easy to recycle composites. Thus having potential of replacing impossible to recycle hybrid composites.
Original languageEnglish (US)
JournalMacromolecular Rapid Communications
StatePublished - Apr 2 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-04-06
Acknowledgements: The authors wish to thank Reliance industries for the partial financial support, and King Abdullah University of Science and Technology (KAUST) for providing the Competitive Research Grant (CRG) for executing the characterization and mechanical properties of the polymers . The authors wish to acknowledge Mr. Joris van der Eem and Mr. Amr Elsakran for their valuable help in the solid-state processing and tensile testing performed at KAUST; Mr. Alessandro Genovese for his valuable help with the SEM measurements performed at KAUST; Mr. Fuhai Zhou for his valuable help with the electron diffraction measurements performed at KAUST. Dr. Jiayi Zhou for her valuable help with the WAXD measurement on the solid-state processed tapes performed at KAUST.

ASJC Scopus subject areas

  • Materials Chemistry
  • Organic Chemistry
  • Polymers and Plastics


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