Epitaxially crystallized polyethylene exhibiting near‐equilibrium melting temperatures*
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- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey USA
- Department of Mechanical and Aerospace Engineering Princeton University Princeton New Jersey USA
- Department of Electrical and Computer Engineering University of Delaware Newark Delaware USA
- Department of Mechanical and Aerospace Engineering Princeton University Princeton New Jersey USA, Princeton Institute for the Science and Technology of Materials, Princeton University Princeton New Jersey USA
- Department of Chemical and Biological Engineering Princeton University Princeton New Jersey USA, Princeton Institute for the Science and Technology of Materials, Princeton University Princeton New Jersey USA
Abstract The morphology and orientation of polymer crystals are important factors which determine the performance of thin‐film, polymer‐based technologies such as organic electronic devices and gas separation membranes. Here, we utilize polymer‐substrate epitaxy to achieve a highly oriented crystalline morphology during thin‐film processing. To accomplish this, we employ matrix‐assisted pulsed laser evaporation (MAPLE), a slow physical vapor deposition process, to deposit linear polyethylene epitaxially atop a graphene substrate. Via MAPLE, we demonstrate the ability to achieve a film morphology comprised of well‐aligned, edge‐on crystalline lamellae. Furthermore, we show that MAPLE can be exploited to grow crystalline lamellae composed entirely of extended polymer chains which exhibit a near‐equilibrium melting temperature. Our study demonstrates that MAPLE, as a bottom‐up approach, can deposit polymer thin films with improved control over crystalline morphology.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1841278
- Journal Information:
- Polymer Engineering and Science, Journal Name: Polymer Engineering and Science Journal Issue: 3 Vol. 62; ISSN 0032-3888
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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