Journal article
Self-Assembly of Poly(3-hexylthiophene)-block-poly(gamma-benzyl-L-glutamate) within Solution-Cast Films and Nanofibers
Macromolecular materials and engineering, v 299(12), pp 1484-1493
01 Dec 2014
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We report the fabrication and self-assembly study of solution-cast films and electrospun nanofibers of poly(3-hexylthiophene)-block-poly(gamma-benzyl-L-glutamate) (P3HT-b-PBLG) rod-rod diblock copolymer. X-ray scattering and transmission electron microscopy revealed hierarchical self-assembly in P3HT-b-PBLG with ordered structures at two length scales: block copolymer self-assembly between P3HT and PBLG (approximate to 11nm) and molecular ordering within each block (0.4-1.6 nm). Vapor pressure of the casting solvent was proven critical in both levels of assembly for films. However, as-spun nanofibers exhibit poorly developed structures, regardless of solvent, due to rapid evaporation during electrospinning. Upon annealing, molecular structures exhibited clear signatures of both blocks in nanofibers.
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Details
- Title
- Self-Assembly of Poly(3-hexylthiophene)-block-poly(gamma-benzyl-L-glutamate) within Solution-Cast Films and Nanofibers
- Creators
- Alda Kapllani - Department of Chemical and Biological EngineeringDrexel University3141 Chestnut StreetPhiladelphiaPA19104USACaitlin Dillard - Department of Chemical and Biological EngineeringDrexel University3141 Chestnut StreetPhiladelphiaPA19104USAKatherine E. Washington - The University of Texas at DallasMichael C. Biewer - The University of Texas at DallasMihaela C. Stefan - The University of Texas at DallasVibha Kalra - Drexel University
- Publication Details
- Macromolecular materials and engineering, v 299(12), pp 1484-1493
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- CMMI-1144376 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000345852300008
- Scopus ID
- 2-s2.0-84905891359
- Other Identifier
- 991019167583804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Polymer Science