Quantifying polymer chain orientation in strong and tough nanofibers with low crystallinity : towards next generation nanostructured superfibers
- Papkov, Dimitry
- Delpouve, Nicolas
- Delbreilh, Laurent
- Araujo, Steven
- Stockdale, Taylor
- Mamedov, Sergey
- Maleckis, Kaspars
- Zou, Yan
- Andalib, Mohammad Nahid
- Dargent, Eric
- Vinayak, Dravid
- Holt, Martin V.
- Pellerin, Christian
- Dzenis, Yuris A.
DOIAbstract
Advanced fibers revolutionized structural materials in the second half of the 20th century. However, all high-strength fibers developed to date are brittle. Recently, pioneering simultaneous ultrahigh strength and toughness were discovered in fine (<250 nm) individual electrospun polymer nanofibers (NFs). This highly desirable combination of properties was attributed to high macromolecular chain alignment coupled with low crystallinity. Quantitative analysis of the degree of preferred chain orientation will be crucial for control of NF mechanical properties. However, quantification of supramolecular nanoarchitecture in NFs with low crystallinity in the ultrafine diameter range is highly challenging. Here, we discuss the applicability of tra...
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