Journal article
Piezoelectric electrospun polyacrylonitrile with various tacticities
Journal of applied polymer science, v 136(20), pp 47530-n/a
20 May 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Electrospinning of urea clathrate polymerized polyacrylonitrile (PAN) with isotacticity 25% and 52% was achieved in N,N-dimethylformamide (DMF) at room temperature. Although the molecular weights of the 25% and 52% were found to be comparable by size exclusion chromatography, creation of uniform nanofibers with comparable diameters (average of 450nm) required concentrations of 5 % w/v and 3.5% w/v, respectively. X-ray diffraction (XRD) analysis demonstrated that the polymer retained semicrystalline structure and suggested that crystallinity was correlated with increasing isotacticity. Fourier transform infrared spectroscopy (FTIR) also confirmed increased crystallinity as compared to commercially purchased free-radical polymerized PAN due to a shift in the 1250cm(-1) methine peak. Periodic semistatic normal load piezoelectric testing of the electrospun isotactic PAN samples also exhibited an average of 30% of the piezoelectric response of electrospun (65:35) poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE), a current gold standard for piezoelectric polymers, whereas commercially purchased free-radical polymerized PAN exhibited no observable piezoelectric response. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47530.
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Details
- Title
- Piezoelectric electrospun polyacrylonitrile with various tacticities
- Creators
- Reva M. Street - Drexel UniversityMasatomo Minagawa - Yamagata UniversityAndriy Vengrenyuk - Drexel UniversityCaroline L. Schauer - Drexel University
- Publication Details
- Journal of applied polymer science, v 136(20), pp 47530-n/a
- Publisher
- Wiley
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; College of Engineering
- Web of Science ID
- WOS:000459632600023
- Scopus ID
- 2-s2.0-85060166706
- Other Identifier
- 991019168870604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Polymer Science